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DataServiceCollection<T> Class

 
System_CAPS_noteNote

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Represents a dynamic entity collection that provides notifications when items get added, removed, or when the list is refreshed.

Namespace:   System.Data.Services.Client
Assembly:  System.Data.Services.Client (in System.Data.Services.Client.dll)

System.Object
  System.Collections.ObjectModel.Collection<T>
    System.Collections.ObjectModel.ObservableCollection<T>
      System.Data.Services.Client.DataServiceCollection<T>

Public Class DataServiceCollection(Of T)
	Inherits ObservableCollection(Of T)

Type Parameters

T

An entity type.

Name Description
System_CAPS_pubmethod DataServiceCollection<T>()

Creates a new instance of the DataServiceCollection<T> class.

System_CAPS_pubmethod DataServiceCollection<T>(DataServiceContext)

Creates a new instance of the DataServiceCollection<T> class that uses the specified DataServiceContext.

System_CAPS_pubmethod DataServiceCollection<T>(DataServiceContext, IEnumerable<T>, TrackingMode, String, Func<EntityChangedParams, Boolean>, Func<EntityCollectionChangedParams, Boolean>)

Creates a new instance of the DataServiceCollection<T> class a based on query execution, with the supplied change method delegates, and that uses the supplied DataServiceContext.

System_CAPS_pubmethod DataServiceCollection<T>(DataServiceContext, String, Func<EntityChangedParams, Boolean>, Func<EntityCollectionChangedParams, Boolean>)

Creates a new instance of the DataServiceCollection<T> class with the supplied change method delegates and that uses the specified DataServiceContext.

System_CAPS_pubmethod DataServiceCollection<T>(IEnumerable<T>)

Creates a new instance of the DataServiceCollection<T> class based on query execution.

System_CAPS_pubmethod DataServiceCollection<T>(IEnumerable<T>, TrackingMode)

Creates a new instance of the DataServiceCollection<T> class based on query execution and with the specified tracking mode.

System_CAPS_pubmethod DataServiceCollection<T>(IEnumerable<T>, TrackingMode, String, Func<EntityChangedParams, Boolean>, Func<EntityCollectionChangedParams, Boolean>)

Creates a new instance of the DataServiceCollection<T> class a based on query execution and with the supplied change method delegates.

Name Description
System_CAPS_pubproperty Continuation

Gets a continuation object that is used to return the next set of paged results.

System_CAPS_pubproperty Count

Gets the number of elements actually contained in the Collection<T>.(Inherited from Collection<T>.)

System_CAPS_pubproperty Item[Int32]

Gets or sets the element at the specified index.(Inherited from Collection<T>.)

System_CAPS_protproperty Items

Gets a IList<T> wrapper around the Collection<T>.(Inherited from Collection<T>.)

Name Description
System_CAPS_pubmethod Add(T)

Adds an object to the end of the Collection<T>. (Inherited from Collection<T>.)

System_CAPS_protmethod BlockReentrancy()

Disallows reentrant attempts to change this collection.(Inherited from ObservableCollection<T>.)

System_CAPS_protmethod CheckReentrancy()

Checks for reentrant attempts to change this collection.(Inherited from ObservableCollection<T>.)

System_CAPS_pubmethod Clear()

Removes all elements from the Collection<T>.(Inherited from Collection<T>.)

System_CAPS_pubmethod Clear(Boolean)

Removes all items from the collection, and optionally detaches all the items from the DataServiceContext.

System_CAPS_protmethod ClearItems()

Removes all items from the collection.(Inherited from ObservableCollection<T>.)

System_CAPS_pubmethod Contains(T)

Determines whether an element is in the Collection<T>.(Inherited from Collection<T>.)

System_CAPS_pubmethod CopyTo(T[], Int32)

Copies the entire Collection<T> to a compatible one-dimensional Array, starting at the specified index of the target array.(Inherited from Collection<T>.)

System_CAPS_pubmethod Detach()

Disables DataServiceContext tracking of all items in the collection.

System_CAPS_pubmethod Equals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethod Finalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethod GetEnumerator()

Returns an enumerator that iterates through the Collection<T>.(Inherited from Collection<T>.)

System_CAPS_pubmethod GetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethod GetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethod IndexOf(T)

Searches for the specified object and returns the zero-based index of the first occurrence within the entire Collection<T>.(Inherited from Collection<T>.)

System_CAPS_pubmethod Insert(Int32, T)

Inserts an element into the Collection<T> at the specified index.(Inherited from Collection<T>.)

System_CAPS_protmethod InsertItem(Int32, T)

Adds a specified item to the collection at the specified index. (Overrides ObservableCollection<T>.InsertItem(Int32, T).)

System_CAPS_pubmethod Load(T)

Loads a single entity object into the collection.

System_CAPS_pubmethod Load(IEnumerable<T>)

Loads a collection of entity objects into the collection.

System_CAPS_protmethod MemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_pubmethod Move(Int32, Int32)

Moves the item at the specified index to a new location in the collection.(Inherited from ObservableCollection<T>.)

System_CAPS_protmethod MoveItem(Int32, Int32)

Moves the item at the specified index to a new location in the collection.(Inherited from ObservableCollection<T>.)

System_CAPS_protmethod OnCollectionChanged(NotifyCollectionChangedEventArgs)

Raises the CollectionChanged event with the provided arguments.(Inherited from ObservableCollection<T>.)

System_CAPS_protmethod OnPropertyChanged(PropertyChangedEventArgs)

Raises the PropertyChanged event with the provided arguments.(Inherited from ObservableCollection<T>.)

System_CAPS_pubmethod Remove(T)

Removes the first occurrence of a specific object from the Collection<T>.(Inherited from Collection<T>.)

System_CAPS_pubmethod RemoveAt(Int32)

Removes the element at the specified index of the Collection<T>.(Inherited from Collection<T>.)

System_CAPS_protmethod RemoveItem(Int32)

Removes the item at the specified index of the collection.(Inherited from ObservableCollection<T>.)

System_CAPS_protmethod SetItem(Int32, T)

Replaces the element at the specified index.(Inherited from ObservableCollection<T>.)

System_CAPS_pubmethod ToString()

Returns a string that represents the current object.(Inherited from Object.)

Name Description
System_CAPS_pubevent CollectionChanged

Occurs when an item is added, removed, changed, moved, or the entire list is refreshed.(Inherited from ObservableCollection<T>.)

System_CAPS_protevent PropertyChanged

Occurs when a property value changes.(Inherited from ObservableCollection<T>.)

Name Description
System_CAPS_pubinterface System_CAPS_privevent INotifyPropertyChanged.PropertyChanged

Occurs when a property value changes.(Inherited from ObservableCollection<T>.)

System_CAPS_pubinterface System_CAPS_privmethod ICollection.CopyTo(Array, Int32)

Copies the elements of the ICollection to an Array, starting at a particular Array index.(Inherited from Collection<T>.)

System_CAPS_pubinterface System_CAPS_privmethod IEnumerable.GetEnumerator()

Returns an enumerator that iterates through a collection.(Inherited from Collection<T>.)

System_CAPS_pubinterface System_CAPS_privmethod IList.Add(Object)

Adds an item to the IList.(Inherited from Collection<T>.)

System_CAPS_pubinterface System_CAPS_privmethod IList.Contains(Object)

Determines whether the IList contains a specific value.(Inherited from Collection<T>.)

System_CAPS_pubinterface System_CAPS_privmethod IList.IndexOf(Object)

Determines the index of a specific item in the IList.(Inherited from Collection<T>.)

System_CAPS_pubinterface System_CAPS_privmethod IList.Insert(Int32, Object)

Inserts an item into the IList at the specified index.(Inherited from Collection<T>.)

System_CAPS_pubinterface System_CAPS_privmethod IList.Remove(Object)

Removes the first occurrence of a specific object from the IList.(Inherited from Collection<T>.)

System_CAPS_pubinterface System_CAPS_privproperty ICollection<T>.IsReadOnly

Gets a value indicating whether the ICollection<T> is read-only.(Inherited from Collection<T>.)

System_CAPS_pubinterface System_CAPS_privproperty ICollection.IsSynchronized

Gets a value indicating whether access to the ICollection is synchronized (thread safe).(Inherited from Collection<T>.)

System_CAPS_pubinterface System_CAPS_privproperty ICollection.SyncRoot

Gets an object that can be used to synchronize access to the ICollection.(Inherited from Collection<T>.)

System_CAPS_pubinterface System_CAPS_privproperty IList.IsFixedSize

Gets a value indicating whether the IList has a fixed size.(Inherited from Collection<T>.)

System_CAPS_pubinterface System_CAPS_privproperty IList.IsReadOnly

Gets a value indicating whether the IList is read-only.(Inherited from Collection<T>.)

System_CAPS_pubinterface System_CAPS_privproperty IList.Item[Int32]

Gets or sets the element at the specified index.(Inherited from Collection<T>.)

Name Description
System_CAPS_pubmethod Aggregate<T>(Func<T, T, T>)

Overloaded. Applies an accumulator function over a sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Aggregate<T, TAccumulate>(TAccumulate, Func<TAccumulate, T, TAccumulate>)

Overloaded. Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value.(Defined by Enumerable.)

System_CAPS_pubmethod Aggregate<T, TAccumulate, TResult>(TAccumulate, Func<TAccumulate, T, TAccumulate>, Func<TAccumulate, TResult>)

Overloaded. Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value, and the specified function is used to select the result value.(Defined by Enumerable.)

System_CAPS_pubmethod All<T>(Func<T, Boolean>)

Determines whether all elements of a sequence satisfy a condition.(Defined by Enumerable.)

System_CAPS_pubmethod Any<T>()

Overloaded. Determines whether a sequence contains any elements.(Defined by Enumerable.)

System_CAPS_pubmethod Any<T>(Func<T, Boolean>)

Overloaded. Determines whether any element of a sequence satisfies a condition.(Defined by Enumerable.)

System_CAPS_pubmethod Append<T>(T)

Appends a value to the end of the sequence.(Defined by Enumerable.)

System_CAPS_pubmethod AsEnumerable<T>()

Returns the input typed as IEnumerable<T>.(Defined by Enumerable.)

System_CAPS_pubmethod AsParallel()

Overloaded. Enables parallelization of a query.(Defined by ParallelEnumerable.)

System_CAPS_pubmethod AsParallel<T>()

Overloaded. Enables parallelization of a query.(Defined by ParallelEnumerable.)

System_CAPS_pubmethod AsQueryable()

Overloaded. Converts an IEnumerable to an IQueryable.(Defined by Queryable.)

System_CAPS_pubmethod AsQueryable<T>()

Overloaded. Converts a generic IEnumerable<T> to a generic IQueryable<T>.(Defined by Queryable.)

System_CAPS_pubmethod Average<T>(Func<T, Decimal>)

Overloaded. Computes the average of a sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Average<T>(Func<T, Double>)

Overloaded. Computes the average of a sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Average<T>(Func<T, Int32>)

Overloaded. Computes the average of a sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Average<T>(Func<T, Int64>)

Overloaded. Computes the average of a sequence of Int64 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Average<T>(Func<T, Nullable<Decimal>>)

Overloaded. Computes the average of a sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Average<T>(Func<T, Nullable<Double>>)

Overloaded. Computes the average of a sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Average<T>(Func<T, Nullable<Int32>>)

Overloaded. Computes the average of a sequence of nullable Int32 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Average<T>(Func<T, Nullable<Int64>>)

Overloaded. Computes the average of a sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Average<T>(Func<T, Nullable<Single>>)

Overloaded. Computes the average of a sequence of nullable Single values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Average<T>(Func<T, Single>)

Overloaded. Computes the average of a sequence of Single values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Cast<TResult>()

Casts the elements of an IEnumerable to the specified type.(Defined by Enumerable.)

System_CAPS_pubmethod Concat<T>(IEnumerable<T>)

Concatenates two sequences.(Defined by Enumerable.)

System_CAPS_pubmethod Contains<T>(T)

Overloaded. Determines whether a sequence contains a specified element by using the default equality comparer.(Defined by Enumerable.)

System_CAPS_pubmethod Contains<T>(T, IEqualityComparer<T>)

Overloaded. Determines whether a sequence contains a specified element by using a specified IEqualityComparer<T>.(Defined by Enumerable.)

System_CAPS_pubmethod Count<T>()

Overloaded. Returns the number of elements in a sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Count<T>(Func<T, Boolean>)

Overloaded. Returns a number that represents how many elements in the specified sequence satisfy a condition.(Defined by Enumerable.)

System_CAPS_pubmethod DefaultIfEmpty<T>()

Overloaded. Returns the elements of the specified sequence or the type parameter's default value in a singleton collection if the sequence is empty.(Defined by Enumerable.)

System_CAPS_pubmethod DefaultIfEmpty<T>(T)

Overloaded. Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty.(Defined by Enumerable.)

System_CAPS_pubmethod Distinct<T>()

Overloaded. Returns distinct elements from a sequence by using the default equality comparer to compare values.(Defined by Enumerable.)

System_CAPS_pubmethod Distinct<T>(IEqualityComparer<T>)

Overloaded. Returns distinct elements from a sequence by using a specified IEqualityComparer<T> to compare values.(Defined by Enumerable.)

System_CAPS_pubmethod ElementAt<T>(Int32)

Returns the element at a specified index in a sequence.(Defined by Enumerable.)

System_CAPS_pubmethod ElementAtOrDefault<T>(Int32)

Returns the element at a specified index in a sequence or a default value if the index is out of range.(Defined by Enumerable.)

System_CAPS_pubmethod Except<T>(IEnumerable<T>)

Overloaded. Produces the set difference of two sequences by using the default equality comparer to compare values.(Defined by Enumerable.)

System_CAPS_pubmethod Except<T>(IEnumerable<T>, IEqualityComparer<T>)

Overloaded. Produces the set difference of two sequences by using the specified IEqualityComparer<T> to compare values.(Defined by Enumerable.)

System_CAPS_pubmethod First<T>()

Overloaded. Returns the first element of a sequence.(Defined by Enumerable.)

System_CAPS_pubmethod First<T>(Func<T, Boolean>)

Overloaded. Returns the first element in a sequence that satisfies a specified condition.(Defined by Enumerable.)

System_CAPS_pubmethod FirstOrDefault<T>()

Overloaded. Returns the first element of a sequence, or a default value if the sequence contains no elements.(Defined by Enumerable.)

System_CAPS_pubmethod FirstOrDefault<T>(Func<T, Boolean>)

Overloaded. Returns the first element of the sequence that satisfies a condition or a default value if no such element is found.(Defined by Enumerable.)

System_CAPS_pubmethod GroupBy<T, TKey>(Func<T, TKey>)

Overloaded. Groups the elements of a sequence according to a specified key selector function.(Defined by Enumerable.)

System_CAPS_pubmethod GroupBy<T, TKey>(Func<T, TKey>, IEqualityComparer<TKey>)

Overloaded. Groups the elements of a sequence according to a specified key selector function and compares the keys by using a specified comparer.(Defined by Enumerable.)

System_CAPS_pubmethod GroupBy<T, TKey, TElement>(Func<T, TKey>, Func<T, TElement>)

Overloaded. Groups the elements of a sequence according to a specified key selector function and projects the elements for each group by using a specified function.(Defined by Enumerable.)

System_CAPS_pubmethod GroupBy<T, TKey, TElement>(Func<T, TKey>, Func<T, TElement>, IEqualityComparer<TKey>)

Overloaded. Groups the elements of a sequence according to a key selector function. The keys are compared by using a comparer and each group's elements are projected by using a specified function.(Defined by Enumerable.)

System_CAPS_pubmethod GroupBy<T, TKey, TResult>(Func<T, TKey>, Func<TKey, IEnumerable<T>, TResult>)

Overloaded. Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.(Defined by Enumerable.)

System_CAPS_pubmethod GroupBy<T, TKey, TResult>(Func<T, TKey>, Func<TKey, IEnumerable<T>, TResult>, IEqualityComparer<TKey>)

Overloaded. Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The keys are compared by using a specified comparer.(Defined by Enumerable.)

System_CAPS_pubmethod GroupBy<T, TKey, TElement, TResult>(Func<T, TKey>, Func<T, TElement>, Func<TKey, IEnumerable<TElement>, TResult>)

Overloaded. Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The elements of each group are projected by using a specified function.(Defined by Enumerable.)

System_CAPS_pubmethod GroupBy<T, TKey, TElement, TResult>(Func<T, TKey>, Func<T, TElement>, Func<TKey, IEnumerable<TElement>, TResult>, IEqualityComparer<TKey>)

Overloaded. Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. Key values are compared by using a specified comparer, and the elements of each group are projected by using a specified function.(Defined by Enumerable.)

System_CAPS_pubmethod GroupJoin<T, TInner, TKey, TResult>(IEnumerable<TInner>, Func<T, TKey>, Func<TInner, TKey>, Func<T, IEnumerable<TInner>, TResult>)

Overloaded. Correlates the elements of two sequences based on equality of keys and groups the results. The default equality comparer is used to compare keys.(Defined by Enumerable.)

System_CAPS_pubmethod GroupJoin<T, TInner, TKey, TResult>(IEnumerable<TInner>, Func<T, TKey>, Func<TInner, TKey>, Func<T, IEnumerable<TInner>, TResult>, IEqualityComparer<TKey>)

Overloaded. Correlates the elements of two sequences based on key equality and groups the results. A specified IEqualityComparer<T> is used to compare keys.(Defined by Enumerable.)

System_CAPS_pubmethod Intersect<T>(IEnumerable<T>)

Overloaded. Produces the set intersection of two sequences by using the default equality comparer to compare values.(Defined by Enumerable.)

System_CAPS_pubmethod Intersect<T>(IEnumerable<T>, IEqualityComparer<T>)

Overloaded. Produces the set intersection of two sequences by using the specified IEqualityComparer<T> to compare values.(Defined by Enumerable.)

System_CAPS_pubmethod Join<T, TInner, TKey, TResult>(IEnumerable<TInner>, Func<T, TKey>, Func<TInner, TKey>, Func<T, TInner, TResult>)

Overloaded. Correlates the elements of two sequences based on matching keys. The default equality comparer is used to compare keys.(Defined by Enumerable.)

System_CAPS_pubmethod Join<T, TInner, TKey, TResult>(IEnumerable<TInner>, Func<T, TKey>, Func<TInner, TKey>, Func<T, TInner, TResult>, IEqualityComparer<TKey>)

Overloaded. Correlates the elements of two sequences based on matching keys. A specified IEqualityComparer<T> is used to compare keys.(Defined by Enumerable.)

System_CAPS_pubmethod Last<T>()

Overloaded. Returns the last element of a sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Last<T>(Func<T, Boolean>)

Overloaded. Returns the last element of a sequence that satisfies a specified condition.(Defined by Enumerable.)

System_CAPS_pubmethod LastOrDefault<T>()

Overloaded. Returns the last element of a sequence, or a default value if the sequence contains no elements.(Defined by Enumerable.)

System_CAPS_pubmethod LastOrDefault<T>(Func<T, Boolean>)

Overloaded. Returns the last element of a sequence that satisfies a condition or a default value if no such element is found.(Defined by Enumerable.)

System_CAPS_pubmethod LongCount<T>()

Overloaded. Returns an Int64 that represents the total number of elements in a sequence.(Defined by Enumerable.)

System_CAPS_pubmethod LongCount<T>(Func<T, Boolean>)

Overloaded. Returns an Int64 that represents how many elements in a sequence satisfy a condition.(Defined by Enumerable.)

System_CAPS_pubmethod Max<T>()

Overloaded. Returns the maximum value in a generic sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Max<T>(Func<T, Decimal>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Decimal value.(Defined by Enumerable.)

System_CAPS_pubmethod Max<T>(Func<T, Double>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Double value.(Defined by Enumerable.)

System_CAPS_pubmethod Max<T>(Func<T, Int32>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Int32 value.(Defined by Enumerable.)

System_CAPS_pubmethod Max<T>(Func<T, Int64>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Int64 value.(Defined by Enumerable.)

System_CAPS_pubmethod Max<T>(Func<T, Nullable<Decimal>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Decimal value.(Defined by Enumerable.)

System_CAPS_pubmethod Max<T>(Func<T, Nullable<Double>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Double value.(Defined by Enumerable.)

System_CAPS_pubmethod Max<T>(Func<T, Nullable<Int32>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Int32 value.(Defined by Enumerable.)

System_CAPS_pubmethod Max<T>(Func<T, Nullable<Int64>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Int64 value.(Defined by Enumerable.)

System_CAPS_pubmethod Max<T>(Func<T, Nullable<Single>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum nullable Single value.(Defined by Enumerable.)

System_CAPS_pubmethod Max<T>(Func<T, Single>)

Overloaded. Invokes a transform function on each element of a sequence and returns the maximum Single value.(Defined by Enumerable.)

System_CAPS_pubmethod Max<T, TResult>(Func<T, TResult>)

Overloaded. Invokes a transform function on each element of a generic sequence and returns the maximum resulting value.(Defined by Enumerable.)

System_CAPS_pubmethod Min<T>()

Overloaded. Returns the minimum value in a generic sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Min<T>(Func<T, Decimal>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Decimal value.(Defined by Enumerable.)

System_CAPS_pubmethod Min<T>(Func<T, Double>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Double value.(Defined by Enumerable.)

System_CAPS_pubmethod Min<T>(Func<T, Int32>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Int32 value.(Defined by Enumerable.)

System_CAPS_pubmethod Min<T>(Func<T, Int64>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Int64 value.(Defined by Enumerable.)

System_CAPS_pubmethod Min<T>(Func<T, Nullable<Decimal>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Decimal value.(Defined by Enumerable.)

System_CAPS_pubmethod Min<T>(Func<T, Nullable<Double>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Double value.(Defined by Enumerable.)

System_CAPS_pubmethod Min<T>(Func<T, Nullable<Int32>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Int32 value.(Defined by Enumerable.)

System_CAPS_pubmethod Min<T>(Func<T, Nullable<Int64>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Int64 value.(Defined by Enumerable.)

System_CAPS_pubmethod Min<T>(Func<T, Nullable<Single>>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum nullable Single value.(Defined by Enumerable.)

System_CAPS_pubmethod Min<T>(Func<T, Single>)

Overloaded. Invokes a transform function on each element of a sequence and returns the minimum Single value.(Defined by Enumerable.)

System_CAPS_pubmethod Min<T, TResult>(Func<T, TResult>)

Overloaded. Invokes a transform function on each element of a generic sequence and returns the minimum resulting value.(Defined by Enumerable.)

System_CAPS_pubmethod OfType<TResult>()

Filters the elements of an IEnumerable based on a specified type.(Defined by Enumerable.)

System_CAPS_pubmethod OrderBy<T, TKey>(Func<T, TKey>)

Overloaded. Sorts the elements of a sequence in ascending order according to a key.(Defined by Enumerable.)

System_CAPS_pubmethod OrderBy<T, TKey>(Func<T, TKey>, IComparer<TKey>)

Overloaded. Sorts the elements of a sequence in ascending order by using a specified comparer.(Defined by Enumerable.)

System_CAPS_pubmethod OrderByDescending<T, TKey>(Func<T, TKey>)

Overloaded. Sorts the elements of a sequence in descending order according to a key.(Defined by Enumerable.)

System_CAPS_pubmethod OrderByDescending<T, TKey>(Func<T, TKey>, IComparer<TKey>)

Overloaded. Sorts the elements of a sequence in descending order by using a specified comparer.(Defined by Enumerable.)

System_CAPS_pubmethod Prepend<T>(T)

Adds a value to the beginning of the sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Reverse<T>()

Inverts the order of the elements in a sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Select<T, TResult>(Func<T, TResult>)

Overloaded. Projects each element of a sequence into a new form.(Defined by Enumerable.)

System_CAPS_pubmethod Select<T, TResult>(Func<T, Int32, TResult>)

Overloaded. Projects each element of a sequence into a new form by incorporating the element's index.(Defined by Enumerable.)

System_CAPS_pubmethod SelectMany<T, TResult>(Func<T, IEnumerable<TResult>>)

Overloaded. Projects each element of a sequence to an IEnumerable<T> and flattens the resulting sequences into one sequence.(Defined by Enumerable.)

System_CAPS_pubmethod SelectMany<T, TResult>(Func<T, Int32, IEnumerable<TResult>>)

Overloaded. Projects each element of a sequence to an IEnumerable<T>, and flattens the resulting sequences into one sequence. The index of each source element is used in the projected form of that element.(Defined by Enumerable.)

System_CAPS_pubmethod SelectMany<T, TCollection, TResult>(Func<T, IEnumerable<TCollection>>, Func<T, TCollection, TResult>)

Overloaded. Projects each element of a sequence to an IEnumerable<T>, flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein.(Defined by Enumerable.)

System_CAPS_pubmethod SelectMany<T, TCollection, TResult>(Func<T, Int32, IEnumerable<TCollection>>, Func<T, TCollection, TResult>)

Overloaded. Projects each element of a sequence to an IEnumerable<T>, flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein. The index of each source element is used in the intermediate projected form of that element.(Defined by Enumerable.)

System_CAPS_pubmethod SequenceEqual<T>(IEnumerable<T>)

Overloaded. Determines whether two sequences are equal by comparing the elements by using the default equality comparer for their type.(Defined by Enumerable.)

System_CAPS_pubmethod SequenceEqual<T>(IEnumerable<T>, IEqualityComparer<T>)

Overloaded. Determines whether two sequences are equal by comparing their elements by using a specified IEqualityComparer<T>.(Defined by Enumerable.)

System_CAPS_pubmethod Single<T>()

Overloaded. Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Single<T>(Func<T, Boolean>)

Overloaded. Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists.(Defined by Enumerable.)

System_CAPS_pubmethod SingleOrDefault<T>()

Overloaded. Returns the only element of a sequence, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence.(Defined by Enumerable.)

System_CAPS_pubmethod SingleOrDefault<T>(Func<T, Boolean>)

Overloaded. Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition.(Defined by Enumerable.)

System_CAPS_pubmethod Skip<T>(Int32)

Bypasses a specified number of elements in a sequence and then returns the remaining elements.(Defined by Enumerable.)

System_CAPS_pubmethod SkipWhile<T>(Func<T, Boolean>)

Overloaded. Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements.(Defined by Enumerable.)

System_CAPS_pubmethod SkipWhile<T>(Func<T, Int32, Boolean>)

Overloaded. Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements. The element's index is used in the logic of the predicate function.(Defined by Enumerable.)

System_CAPS_pubmethod Sum<T>(Func<T, Decimal>)

Overloaded. Computes the sum of the sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Sum<T>(Func<T, Double>)

Overloaded. Computes the sum of the sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Sum<T>(Func<T, Int32>)

Overloaded. Computes the sum of the sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Sum<T>(Func<T, Int64>)

Overloaded. Computes the sum of the sequence of Int64 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Sum<T>(Func<T, Nullable<Decimal>>)

Overloaded. Computes the sum of the sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Sum<T>(Func<T, Nullable<Double>>)

Overloaded. Computes the sum of the sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Sum<T>(Func<T, Nullable<Int32>>)

Overloaded. Computes the sum of the sequence of nullable Int32 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Sum<T>(Func<T, Nullable<Int64>>)

Overloaded. Computes the sum of the sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Sum<T>(Func<T, Nullable<Single>>)

Overloaded. Computes the sum of the sequence of nullable Single values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Sum<T>(Func<T, Single>)

Overloaded. Computes the sum of the sequence of Single values that are obtained by invoking a transform function on each element of the input sequence.(Defined by Enumerable.)

System_CAPS_pubmethod Take<T>(Int32)

Returns a specified number of contiguous elements from the start of a sequence.(Defined by Enumerable.)

System_CAPS_pubmethod TakeWhile<T>(Func<T, Boolean>)

Overloaded. Returns elements from a sequence as long as a specified condition is true.(Defined by Enumerable.)

System_CAPS_pubmethod TakeWhile<T>(Func<T, Int32, Boolean>)

Overloaded. Returns elements from a sequence as long as a specified condition is true. The element's index is used in the logic of the predicate function.(Defined by Enumerable.)

System_CAPS_pubmethod ToArray<T>()

Creates an array from a IEnumerable<T>.(Defined by Enumerable.)

System_CAPS_pubmethod ToDictionary<T, TKey>(Func<T, TKey>)

Overloaded. Creates a Dictionary<TKey, TValue> from an IEnumerable<T> according to a specified key selector function.(Defined by Enumerable.)

System_CAPS_pubmethod ToDictionary<T, TKey>(Func<T, TKey>, IEqualityComparer<TKey>)

Overloaded. Creates a Dictionary<TKey, TValue> from an IEnumerable<T> according to a specified key selector function and key comparer.(Defined by Enumerable.)

System_CAPS_pubmethod ToDictionary<T, TKey, TElement>(Func<T, TKey>, Func<T, TElement>)

Overloaded. Creates a Dictionary<TKey, TValue> from an IEnumerable<T> according to specified key selector and element selector functions.(Defined by Enumerable.)

System_CAPS_pubmethod ToDictionary<T, TKey, TElement>(Func<T, TKey>, Func<T, TElement>, IEqualityComparer<TKey>)

Overloaded. Creates a Dictionary<TKey, TValue> from an IEnumerable<T> according to a specified key selector function, a comparer, and an element selector function.(Defined by Enumerable.)

System_CAPS_pubmethod ToList<T>()

Creates a List<T> from an IEnumerable<T>.(Defined by Enumerable.)

System_CAPS_pubmethod ToLookup<T, TKey>(Func<T, TKey>)

Overloaded. Creates a Lookup<TKey, TElement> from an IEnumerable<T> according to a specified key selector function.(Defined by Enumerable.)

System_CAPS_pubmethod ToLookup<T, TKey>(Func<T, TKey>, IEqualityComparer<TKey>)

Overloaded. Creates a Lookup<TKey, TElement> from an IEnumerable<T> according to a specified key selector function and key comparer.(Defined by Enumerable.)

System_CAPS_pubmethod ToLookup<T, TKey, TElement>(Func<T, TKey>, Func<T, TElement>)

Overloaded. Creates a Lookup<TKey, TElement> from an IEnumerable<T> according to specified key selector and element selector functions.(Defined by Enumerable.)

System_CAPS_pubmethod ToLookup<T, TKey, TElement>(Func<T, TKey>, Func<T, TElement>, IEqualityComparer<TKey>)

Overloaded. Creates a Lookup<TKey, TElement> from an IEnumerable<T> according to a specified key selector function, a comparer and an element selector function.(Defined by Enumerable.)

System_CAPS_pubmethod Union<T>(IEnumerable<T>)

Overloaded. Produces the set union of two sequences by using the default equality comparer.(Defined by Enumerable.)

System_CAPS_pubmethod Union<T>(IEnumerable<T>, IEqualityComparer<T>)

Overloaded. Produces the set union of two sequences by using a specified IEqualityComparer<T>.(Defined by Enumerable.)

System_CAPS_pubmethod Where<T>(Func<T, Boolean>)

Overloaded. Filters a sequence of values based on a predicate.(Defined by Enumerable.)

System_CAPS_pubmethod Where<T>(Func<T, Int32, Boolean>)

Overloaded. Filters a sequence of values based on a predicate. Each element's index is used in the logic of the predicate function.(Defined by Enumerable.)

System_CAPS_pubmethod Zip<T, TSecond, TResult>(IEnumerable<TSecond>, Func<T, TSecond, TResult>)

Applies a specified function to the corresponding elements of two sequences, producing a sequence of the results.(Defined by Enumerable.)

WCF Data Services provides the DataServiceCollection<T> class to support binding data to controls in client applications. This class inherits from the ObservableCollection<T> class, which implements the INotifyCollectionChanged interface and is the primary data binding mechanism for Windows Presentation Foundation (WPF) and Silverlight-based applications.

You can load an ObservableCollection<T> binding collection by using any collection that implements the IEnumerable<T> interface. Items loaded into the binding collection must implement the INotifyPropertyChanged interface. For more information, see Binding Data to Controls (WCF Data Services).

The following example is from the code-behind page for an Extensible Application Markup Language (XAML) page that defines the SalesOrders window in WPF. When the window is loaded, an DataServiceCollection<T> is created based on the result of a query that returns customers with related objects, filtered by country. This result is bound to the DataContext property of the StackPanel that is the root layout control for the WPF window.

Imports System
Imports System.Collections.Generic
Imports System.Linq
Imports System.Text
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Data
Imports System.Windows.Documents
Imports System.Windows.Input
Imports System.Windows.Media
Imports System.Windows.Media.Imaging
Imports System.Windows.Navigation
Imports System.Windows.Shapes
Imports System.Data.Services.Client
Imports NorthwindClient.Northwind

Partial Public Class CustomerOrdersWpf
    Inherits Window

    Private context As NorthwindEntities
    Private trackedCustomers As DataServiceCollection(Of Customer)
    Private Const customerCountry As String = "Germany"
    Private Const svcUri As String = "http://localhost:12345/Northwind.svc/"
    Private Sub Window_Loaded(ByVal sender As Object, ByVal e As RoutedEventArgs)
        Try
            ' Initialize the context for the data service.
            context = New NorthwindEntities(New Uri(svcUri))

            ' Create a LINQ query that returns customers with related orders.
            Dim customerQuery = From cust In context.Customers.Expand("Orders") _
                                    Where cust.Country = customerCountry _
                                    Select cust

                ' Create a new collection for binding based on the LINQ query.
            trackedCustomers = New DataServiceCollection(Of Customer)(customerQuery)

                ' Bind the root StackPanel element to the collection
                ' related object binding paths are defined in the XAML.
            Me.LayoutRoot.DataContext = trackedCustomers
        Catch ex As DataServiceQueryException
            MessageBox.Show("The query could not be completed:\n" + ex.ToString())
        Catch ex As InvalidOperationException
            MessageBox.Show("The following error occurred:\n" + ex.ToString())
        End Try
    End Sub
    Private Sub saveChangesButton_Click(ByVal sender As Object, ByVal e As RoutedEventArgs)
        ' Save changes to the data service.
        context.SaveChanges()
    End Sub
End Class

The following is the XAML that defines the SalesOrders window in WPF for the previous example.

    <Window x:Class="CustomerOrdersWpf"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             Height="423" Width="679" Loaded="Window_Loaded">
    <StackPanel Orientation="Vertical" Height="Auto" Name="LayoutRoot" Width="Auto">
        <Label Content="Customer ID" Margin="20,0,0,0" />
        <ComboBox Name="customerIDComboBox" DisplayMemberPath="CustomerID" ItemsSource="{Binding}" 
                  IsSynchronizedWithCurrentItem="True" SelectedIndex="0" Height="23" Width="120" 
                  HorizontalAlignment="Left" Margin="20,0,0,0" VerticalAlignment="Center" />
        <ListView ItemsSource="{Binding Path=Orders}" Name="ordersDataGrid" Margin="34,46,34,50">
            <ListView.View>
                <GridView AllowsColumnReorder="False" ColumnHeaderToolTip="Line Items">
                    <GridViewColumn DisplayMemberBinding="{Binding Path=OrderID, Mode=OneWay}" 
                        Header="Order ID" Width="50"/>
                    <GridViewColumn DisplayMemberBinding="{Binding Path=OrderDate, Mode=TwoWay}" 
                        Header="Order Date" Width="50"/>
                    <GridViewColumn DisplayMemberBinding="{Binding Path=Freight, Mode=TwoWay}" 
                        Header="Freight Cost" Width="50"/>
                </GridView>
            </ListView.View>
        </ListView>
        <Button Name="saveChangesButton" Content="Save Changes" Click="saveChangesButton_Click" 
                Width="80" Height="30" Margin="450,0,0,0"/>
    </StackPanel>
</Window>
.NET Framework
Available since 3.5
Silverlight
Available since 4.0

Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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