通过

IsNull 属性

Gets a value that indicates whether the column is null.

命名空间：  Microsoft.SqlServer.Dts.Pipeline
程序集：  Microsoft.SqlServer.PipelineHost（在 Microsoft.SqlServer.PipelineHost.dll 中）

语法

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

value = instance.IsNull

public bool IsNull { get; }

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

member IsNull : bool

function get IsNull () : boolean

属性值

类型：System. . :: . .Boolean
A value that indicates whether the column is null.