SystemDataType.AllowNulls Property
Gets the Boolean property that specifies whether the system data type allows null values.
命名空間: Microsoft.SqlServer.Management.Smo
組件: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)
語法
'宣告
Public ReadOnly Property AllowNulls As Boolean
public bool AllowNulls { get; }
public:
property bool AllowNulls {
bool get ();
}
/** @property */
public boolean get_AllowNulls ()
public function get AllowNulls () : boolean
屬性值
A Boolean value that specifies whether the system data type allows null values. If True, the system data type allows null values. If False, the system data type does not allow null values.
備註
只有 Microsoft .NET Framework 2.0 版支援此命名空間、類別或成員。
範例
How to: Construct a DataType Object by Using the Default Constructor in Visual Basic .NET
How to: Construct a DataType Object with the Specification in the Constructor in Visual Basic .NET
執行緒安全性
Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
平台
開發平台
如需受支援的平台清單，請參閱＜安裝 SQL Server 2005 的硬體和軟體需求＞。
目標平台
如需受支援的平台清單，請參閱＜安裝 SQL Server 2005 的硬體和軟體需求＞。
請參閱
參考
SystemDataType Class
SystemDataType Members
Microsoft.SqlServer.Management.Smo Namespace