AllowNulls 属性
Gets the Boolean property that specifies whether the system data type allows null values.
命名空间： Microsoft.SqlServer.Management.Smo
程序集： Microsoft.SqlServer.Smo（在 Microsoft.SqlServer.Smo.dll 中）
语法
声明
<SfcPropertyAttribute(SfcPropertyFlags.None Or SfcPropertyFlags.Standalone Or SfcPropertyFlags.SqlAzureDatabase)> _
Public ReadOnly Property AllowNulls As Boolean
Get
用法
Dim instance As SystemDataType
Dim value As Boolean
value = instance.AllowNulls
[SfcPropertyAttribute(SfcPropertyFlags.None|SfcPropertyFlags.Standalone|SfcPropertyFlags.SqlAzureDatabase)]
public bool AllowNulls { get; }
[SfcPropertyAttribute(SfcPropertyFlags::None|SfcPropertyFlags::Standalone|SfcPropertyFlags::SqlAzureDatabase)]
public:
property bool AllowNulls {
bool get ();
}
[<SfcPropertyAttribute(SfcPropertyFlags.None|SfcPropertyFlags.Standalone|SfcPropertyFlags.SqlAzureDatabase)>]
member AllowNulls : bool
function get AllowNulls () : boolean
属性值
类型：System. . :: . .Boolean
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.