DataColumnMappingCollection 类

包含 DataColumnMapping 对象的集合。

**命名空间:**System.Data.Common
**程序集:**System.Data(在 system.data.dll 中)

语法

声明
Public NotInheritable Class DataColumnMappingCollection
    Inherits MarshalByRefObject
    Implements IColumnMappingCollection, IList, ICollection, IEnumerable
用法
Dim instance As DataColumnMappingCollection
public sealed class DataColumnMappingCollection : MarshalByRefObject, IColumnMappingCollection, IList, ICollection, 
    IEnumerable
public ref class DataColumnMappingCollection sealed : public MarshalByRefObject, IColumnMappingCollection, IList, ICollection, 
    IEnumerable
public final class DataColumnMappingCollection extends MarshalByRefObject implements IColumnMappingCollection, IList, 
    ICollection, IEnumerable
public final class DataColumnMappingCollection extends MarshalByRefObject implements IColumnMappingCollection, IList, 
    ICollection, IEnumerable

示例

下面的示例使用 DataTableMapping 将多个 DataColumnMapping 对象 Add(添加)到其 ColumnMappings 集合中,然后显示那些已映射源列的列表。此示例假定已经创建了 DataTableMapping

Public Sub ShowColumnMappings()
    ' ...
    ' create tableMapping
    ' ...
    tableMapping.ColumnMappings.Add( _
       "Category Name", "DataCategory")
    tableMapping.ColumnMappings.Add( _
       "Description", "DataDescription")
    tableMapping.ColumnMappings.Add( _
       "Picture", "DataPicture")
    Console.WriteLine("Column Mappings:")
    Dim i As Integer
    For i = 0 To tableMapping.ColumnMappings.Count - 1
        Console.WriteLine("  {0} {1}", i, _
           tableMapping.ColumnMappings(i).ToString())
    Next i
End Sub
public void ShowColumnMappings() 
{
    // ...
    // create tableMapping
    // ...
    tableMapping.ColumnMappings.Add("Category Name","DataCategory");
    tableMapping.ColumnMappings.Add("Description","DataDescription");
    tableMapping.ColumnMappings.Add("Picture","DataPicture");
    Console.WriteLine("Column Mappings");
    for(int i=0;i < tableMapping.ColumnMappings.Count;i++) 
    {
        Console.WriteLine("  {0} {1}", i,
            tableMapping.ColumnMappings[i].ToString());
    }
}

继承层次结构

System.Object
   System.MarshalByRefObject
    System.Data.Common.DataColumnMappingCollection

线程安全

此类型的任何公共静态(Visual Basic 中的 Shared)成员都是线程安全的,但不保证所有实例成员都是线程安全的。

平台

Windows 98、Windows 2000 SP4、Windows CE、Windows Millennium Edition、Windows Mobile for Pocket PC、Windows Mobile for Smartphone、Windows Server 2003、Windows XP Media Center Edition、Windows XP Professional x64 Edition、Windows XP SP2、Windows XP Starter Edition

.NET Framework 并不是对每个平台的所有版本都提供支持。有关受支持版本的列表,请参见系统要求

版本信息

.NET Framework

受以下版本支持:2.0、1.1、1.0

.NET Compact Framework

受以下版本支持:2.0、1.0

请参见

参考

DataColumnMappingCollection 成员
System.Data.Common 命名空间