IsNull 屬性

Determines whether the SqlGeography instance is null.

命名空間： Microsoft.SqlServer.Types
組件： Microsoft.SqlServer.Types (在 Microsoft.SqlServer.Types.dll 中)

語法

'宣告
Public ReadOnly Property IsNull As Boolean
    Get
'用途
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

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