IsNull 属性

Determines whether the SqlGeography instance is null.

命名空间： Microsoft.SqlServer.Types
程序集： Microsoft.SqlServer.Types（在 Microsoft.SqlServer.Types.dll 中）

语法

声明
Public ReadOnly Property IsNull As Boolean
    Get
用法
Dim instance As SqlGeography
Dim value As Boolean

value = instance.IsNull

public bool IsNull { get; }

public:
virtual property bool IsNull {
    bool get () sealed;
}

abstract IsNull : bool
override IsNull : bool

final function get IsNull () : boolean

类型：System. . :: . .Boolean
A bool value that specifies whether the SqlGeography instance is null. If true, the instance is null. Otherwise, false.