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Check Class

The Check object represents a SQL Server check constraint. 

Namespace:  Microsoft.SqlServer.Management.Smo
Assembly:  Microsoft.SqlServer.Smo (in Microsoft.SqlServer.Smo.dll)

public sealed class Check : ScriptNameObjectBase, 
	ISfcSupportsDesignMode, ICreatable, IDroppable, IRenamable, IMarkForDrop, 
	IAlterable, IExtendedProperties, IScriptable

The Check type exposes the following members.

  NameDescription
Public methodCheck()Initializes a new instance of the Check class.
Public methodCheck(SqlSmoObject, String)Initializes a new instance of the Check class, which is owned by the specified parent object and has the specified name.
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  NameDescription
Public propertyCreateDateGets the date and time that the check constraint was created.
Public propertyDateLastModifiedGets the date and time that the check constraint was last modified.
Public propertyExtendedPropertiesRepresents a collection of ExtendedProperty objects. Each ExtendedProperty object represents an extended property on the Check object.
Public propertyIDGets the database ID value that uniquely identifies the check constraint.
Public propertyIsCheckedGets the Boolean property value that specifies whether the constraint was enabled without checking existing rows, so constraint may not hold for all rows
Public propertyIsEnabledGets the Boolean property value that specifies whether the check constraint is enabled.
Public propertyIsFileTableDefinedGets a value that specifies whether the check constraint defines a file table.
Public propertyIsSystemNamedGets the Boolean property value that specifies whether the check constraint was named automatically by Microsoft SQL Server or named by the database object creator.
Public propertyNameGets or sets the name of the check constraint. (Overrides NamedSmoObject.Name.)
Public propertyNotForReplicationGets the Boolean property value that specifies whether the check constraint is available for replication or not.
Public propertyParentGets the SqlSmoObject object that is the parent of the Check object.
Public propertyPropertiesGets a collection of Property objects that represent the object properties. (Inherited from SqlSmoObject.)
Public propertyStateGets the state of the referenced object. (Inherited from SmoObjectBase.)
Public propertyTextGets or sets the Transact-SQL statement that defines the check constraint.
Public propertyUrnGets the Uniform Resource Name (URN) address value that uniquely identifies the object. (Inherited from SqlSmoObject.)
Public propertyUserDataGets or sets user-defined data associated with the referenced object. (Inherited from SmoObjectBase.)
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  NameDescription
Public methodAlterUpdates any Check object property changes on an instance of Microsoft SQL Server.
Public methodCreateCreates a check constraint on the instance of SQL Server as defined by the Check object.
Public methodDiscoverDiscovers a list of type Object. (Inherited from SqlSmoObject.)
Public methodDropDrops the check constraint.
Public methodEquals (Inherited from Object.)
Protected methodFormatSqlVariantFormats an object as SqlVariant type. (Inherited from SqlSmoObject.)
Protected methodGetContextDBGets the context database that is associated with this object. (Inherited from SqlSmoObject.)
Protected methodGetDBNameGets the database name that is associated with the object. (Inherited from SqlSmoObject.)
Public methodGetHashCode (Inherited from Object.)
Protected methodGetPropValueGets a property value of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected methodGetPropValueOptionalGets a property value of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected methodGetPropValueOptionalAllowNullGets a property value of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected methodGetServerObjectGets the server of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Public methodGetType (Inherited from Object.)
Public methodInitialize()Initializes the object and forces the properties be loaded. (Inherited from SqlSmoObject.)
Public methodInitialize(Boolean)Initializes the object and forces the properties be loaded. (Inherited from SqlSmoObject.)
Protected methodIsObjectInitializedVerifies whether the object has been initialized. (Inherited from SqlSmoObject.)
Protected methodIsObjectInSpaceVerifies whether the object is isolated or connected to the instance of SQL Server. (Inherited from SqlSmoObject.)
Public methodMarkForDropMarks the foreign key to be dropped next time its parent Table object is altered by the Alter method.
Public methodRefreshRefreshes the script name. (Inherited from ScriptNameObjectBase.)
Public methodRenameMarks the foreign key to be dropped next time its parent Table object is altered by the Alter method.
Public methodScript()Generates a Transact-SQL script that can be used to re-create the check constraint.
Public methodScript(ScriptingOptions)Generates a Transact-SQL script that can be used to re-create the check constraint as specified by the script options.
Protected methodSetParentImplSets the parent of the SqlSmoObject to the newParent parameter. (Inherited from SqlSmoObject.)
Public methodToStringReturns a String that represents the referenced object. (Inherited from SqlSmoObject.)
Public methodValidateValidates the state of an object. (Inherited from SmoObjectBase.)
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  NameDescription
Public eventPropertyChangedRepresents the event that occurs when a property is changed. (Inherited from SqlSmoObject.)
Public eventPropertyMetadataChangedRepresents the event that occurs when property metadata changes. (Inherited from SqlSmoObject.)
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  NameDescription
Explicit interface implemetationPrivate methodIAlienObject.DiscoverDiscovers any dependencies. Do not reference this member directly in your code. It supports the SQL Server infrastructure. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate methodIAlienObject.GetDomainRootReturns the root of the domain. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate methodIAlienObject.GetParentGets the parent of this object. Do not reference this member directly in your code. It supports the SQL Server infrastructure. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate methodIAlienObject.GetPropertyTypeGets the type of the specified property. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate methodIAlienObject.GetPropertyValueGets the value of the specified property. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate methodIAlienObject.GetUrnGets the Unified Resource Name (URN) of the object. Do not reference this member directly in your code. It supports the SQL Server infrastructure. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate methodIAlienObject.ResolveGets the instance that contains the information about the object from the Unified Resource Name (URN) of the object. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate methodIAlienObject.SetObjectStateSets the object state to the specified SfcObjectState value. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate methodIAlienObject.SetPropertyValueSets the property value. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate methodISfcPropertyProvider.GetPropertySetGets the interface reference to the set of properties of this object. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate propertyISfcSupportsDesignMode.IsDesignModeGets a Boolean value that indicates whether the object supports design mode. Identified for informational purposes only. Not supported. Future compatibility is not guaranteed.
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To get Check object properties, users can be a member of the public fixed server role.

To set Check object properties and run the Alter method, users must have ALTER permission on the parent table or column, or be a member of the db_owner fixed database role.

To create a check constraint, users must have ALTER permission on the parent table, or be a member of the db_owner fixed database role.

To drop a check constraint, users must have ALTER permission on the parent table, or be a member of the db_owner fixed database role.

Thread Safety

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

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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