DataColumnMappingCollection Class

.NET Framework (current version)
 

Contains a collection of DataColumnMapping objects.

Namespace:   System.Data.Common
Assembly:  System.Data (in System.Data.dll)

System.Object
  System.MarshalByRefObject
    System.Data.Common.DataColumnMappingCollection

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public sealed class DataColumnMappingCollection : MarshalByRefObject, 
	IColumnMappingCollection, IList, ICollection, IEnumerable

NameDescription
System_CAPS_pubmethodDataColumnMappingCollection()

Creates an empty DataColumnMappingCollection.

NameDescription
System_CAPS_pubpropertyCount

Gets the number of DataColumnMapping objects in the collection.

System_CAPS_pubpropertyItem[Int32]

Gets or sets the DataColumnMapping object at the specified index.

System_CAPS_pubpropertyItem[String]

Gets or sets the DataColumnMapping object with the specified source column name.

NameDescription
System_CAPS_pubmethodAdd(Object)

Adds a DataColumnMapping object to the collection.

System_CAPS_pubmethodAdd(String, String)

Adds a DataColumnMapping object to the collection when given a source column name and a DataSet column name.

System_CAPS_pubmethodAddRange(Array)

Copies the elements of the specified Array to the end of the collection.

System_CAPS_pubmethodAddRange(DataColumnMapping[])

Copies the elements of the specified DataColumnMapping array to the end of the collection.

System_CAPS_pubmethodClear()

Removes all DataColumnMapping objects from the collection.

System_CAPS_pubmethodContains(Object)

Gets a value indicating whether a DataColumnMapping object with the given Object exists in the collection.

System_CAPS_pubmethodContains(String)

Gets a value indicating whether a DataColumnMapping object with the given source column name exists in the collection.

System_CAPS_pubmethodCopyTo(Array, Int32)

Copies the elements of the DataColumnMappingCollection to the specified array.

System_CAPS_pubmethodCopyTo(DataColumnMapping[], Int32)

Copies the elements of the DataColumnMappingCollection to the specified DataColumnMapping array.

System_CAPS_pubmethodCreateObjRef(Type)

Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object.(Inherited from MarshalByRefObject.)

System_CAPS_pubmethodEquals(Object)

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

System_CAPS_pubmethodGetByDataSetColumn(String)

Gets the DataColumnMapping object with the specified DataSet column name.

System_CAPS_pubmethodSystem_CAPS_staticGetColumnMappingBySchemaAction(DataColumnMappingCollection, String, MissingMappingAction)

Gets a DataColumnMapping for the specified DataColumnMappingCollection, source column name, and MissingMappingAction.

System_CAPS_pubmethodSystem_CAPS_staticGetDataColumn(DataColumnMappingCollection, String, Type, DataTable, MissingMappingAction, MissingSchemaAction)

A static method that returns a DataColumn object without instantiating a DataColumnMappingCollection object.

System_CAPS_pubmethodGetEnumerator()

Gets an enumerator that can iterate through the collection.

System_CAPS_pubmethodGetHashCode()

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

System_CAPS_pubmethodGetLifetimeService()

Retrieves the current lifetime service object that controls the lifetime policy for this instance.(Inherited from MarshalByRefObject.)

System_CAPS_pubmethodGetType()

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

System_CAPS_pubmethodIndexOf(Object)

Gets the location of the specified Object that is a DataColumnMapping within the collection.

System_CAPS_pubmethodIndexOf(String)

Gets the location of the DataColumnMapping with the specified source column name.

System_CAPS_pubmethodIndexOfDataSetColumn(String)

Gets the location of the specified DataColumnMapping with the given DataSet column name.

System_CAPS_pubmethodInitializeLifetimeService()

Obtains a lifetime service object to control the lifetime policy for this instance.(Inherited from MarshalByRefObject.)

System_CAPS_pubmethodInsert(Int32, DataColumnMapping)

Inserts a DataColumnMapping object into the DataColumnMappingCollection at the specified index.

System_CAPS_pubmethodInsert(Int32, Object)

Inserts a DataColumnMapping object into the DataColumnMappingCollection at the specified index.

System_CAPS_pubmethodRemove(DataColumnMapping)

Removes the specified DataColumnMapping from the collection.

System_CAPS_pubmethodRemove(Object)

Removes the Object that is a DataColumnMapping from the collection.

System_CAPS_pubmethodRemoveAt(Int32)

Removes the DataColumnMapping object with the specified index from the collection.

System_CAPS_pubmethodRemoveAt(String)

Removes the DataColumnMapping object with the specified source column name from the collection.

System_CAPS_pubmethodToString()

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

NameDescription
System_CAPS_pubinterfaceSystem_CAPS_privmethodIColumnMappingCollection.Add(String, String)

Adds a DataColumnMapping object to the DataColumnMappingCollection by using the source column and DataSet column names.

System_CAPS_pubinterfaceSystem_CAPS_privmethodIColumnMappingCollection.GetByDataSetColumn(String)

Gets the DataColumnMapping object that has the specified DataSet column name.

System_CAPS_pubinterfaceSystem_CAPS_privpropertyICollection.IsSynchronized

Gets a value that indicates whether access to the ICollection is synchronized (thread safe).

System_CAPS_pubinterfaceSystem_CAPS_privpropertyICollection.SyncRoot

Gets an object that can be used to synchronize access to the ICollection.

System_CAPS_pubinterfaceSystem_CAPS_privpropertyIList.IsFixedSize

Gets a value that indicates whether the IList has a fixed size.

System_CAPS_pubinterfaceSystem_CAPS_privpropertyIList.IsReadOnly

Gets a value that indicates whether the IList is read-only.

System_CAPS_pubinterfaceSystem_CAPS_privpropertyIList.Item[Int32]

Gets or sets the element at the specified index.

System_CAPS_pubinterfaceSystem_CAPS_privpropertyIColumnMappingCollection.Item[String]

Gets or sets the IColumnMapping object with the specified SourceColumn name.

NameDescription
System_CAPS_pubmethodAsParallel()

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

System_CAPS_pubmethodAsQueryable()

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

System_CAPS_pubmethodCast<TResult>()

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

System_CAPS_pubmethodOfType<TResult>()

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

The following example uses a DataTableMapping to Add several DataColumnMapping objects to its ColumnMappings collection, and then displays a list of those mapped source columns. This example assumes that a DataTableMapping has already been created.

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public void ShowColumnMappings() 
{
    // ...
    // create tableMapping
    // ...
    tableMapping.ColumnMappings.Add("Category Name","DataCategory");
    tableMapping.ColumnMappings.Add("Description","DataDescription");
    tableMapping.ColumnMappings.Add("Picture","DataPicture");
    Console.WriteLine("Column Mappings");
    for(int i=0;i < tableMapping.ColumnMappings.Count;i++) 
    {
        Console.WriteLine("  {0} {1}", i,
            tableMapping.ColumnMappings[i].ToString());
    }
}

.NET Framework
Available since 1.1

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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