IDataParameter.SourceColumn 属性
定义
public:
property System::String ^ SourceColumn { System::String ^ get(); void set(System::String ^ value); };
public string SourceColumn { get; set; }
member this.SourceColumn : string with get, set
Public Property SourceColumn As String
属性值
映射到 DataSet 的源列的名称。The name of the source column that is mapped to the DataSet. 默认值为一个空字符串。The default is an empty string.
示例
下面的示例创建一个实现类的实例, SqlParameter 并设置其一些属性。The following example creates an instance of the implementing class, SqlParameter, and sets some of its properties.
public void CreateSqlParameter()
{
SqlParameter parameter = new SqlParameter(
"@Description", SqlDbType.VarChar);
parameter.IsNullable = true;
parameter.Direction = ParameterDirection.Output;
parameter.SourceColumn = "Description";
}
Public Sub CreateSqlParameter()
Dim parameter As New SqlParameter( _
"@Description", SqlDbType.VarChar)
parameter.IsNullable = True
parameter.Direction = ParameterDirection.Output
parameter.SourceColumn = "Description"
End Sub
注解
与的值之间的链接 IDataParameter DataTable 可以是双向的,具体取决于属性的值 Direction 。The link between the value of the IDataParameter and the DataTable may be bidirectional depending on the value of the Direction property.