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SqlUserDefinedTypeAttribute Class

Used to mark a type definition in an assembly as a user-defined type (UDT) in SQL Server. The properties on the attribute reflect the physical characteristics used when the type is registered with SQL Server. This class cannot be inherited.

Namespace:  Microsoft.SqlServer.Server
Assembly:  System.Data (in System.Data.dll)

[AttributeUsageAttribute(AttributeTargets.Class|AttributeTargets.Struct, AllowMultiple = false, 
	Inherited = true)]
public sealed class SqlUserDefinedTypeAttribute : Attribute

SQL Server creates a user-defined type that is bound to the type definition that has the SqlUserDefinedTypeAttribute custom attribute. Every UDT must be annotated with this attribute. See "CLR User-Defined Types" in SQL Server 2005 Books Online for more information about UDTs as well as an example of an UDT.

The following example shows the UserDefinedType attribute of the Point UDT. The UDT is byte-ordered, is named "Point", has a validation method named "ValidatePoint", and uses the native serialization format.

[Serializable]
[Microsoft.SqlServer.Server.SqlUserDefinedType(Format.Native,
     IsByteOrdered=true,  
     Name="Point",ValidationMethodName = "ValidatePoint")]
public struct Point : INullable
{

System.Object
  System.Attribute
    Microsoft.SqlServer.Server.SqlUserDefinedTypeAttribute

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

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0

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