ITableMapping.ColumnMappings 属性

定义

命名空间:

System.Data

程序集:

System.Data.Common.dll

获取 DataTable 的派生 DataColumnMappingCollection。

public:
 property System::Data::IColumnMappingCollection ^ ColumnMappings { System::Data::IColumnMappingCollection ^ get(); };

public System.Data.IColumnMappingCollection ColumnMappings { get; }

member this.ColumnMappings : System.Data.IColumnMappingCollection

Public ReadOnly Property ColumnMappings As IColumnMappingCollection

属性值

IColumnMappingCollection

数据列映射集合。

示例

下面的示例创建派生类 的实例， DataTableMapping设置其一些属性，并将其复制到 ColumnMappings 数组。 此示例假定 DataColumnMappingCollection 已创建 。

public void CreateDataTableMapping()
{
    // ...
    // create mappings
    // ...
    DataColumnMapping[] columns = {};
    // Copy mappings to array
    mappings.CopyTo(columns, 0);
    DataTableMapping mapping =
        new DataTableMapping("Categories", "DataCategories", columns);
}

Public Sub CreateDataTableMapping()
    ' ...
    ' create mappings
    ' ...
    Dim columns() As DataColumnMapping
    ' Copy mappings to array
    mappings.CopyTo(columns, 0)
    Dim mapping As New DataTableMapping _
       ("Categories", "DataCategories", columns)
End Sub