DataColumnCollection.Clear 方法

定義

清除任何資料行的集合。Clears the collection of any columns.

public:
 void Clear();
public void Clear ();
member this.Clear : unit -> unit
Public Sub Clear ()

範例

下列範例會清除資料行集合。The following example clears the columns collection.


private void ClearColumnsCollection(DataTable table)
{
    DataColumnCollection columns;
    // Get the DataColumnCollection from a 
    // DataTable in a DataSet.
    columns = table.Columns;
    columns.Clear();
}
 Private Sub ClearColumnsCollection(table As DataTable)
     Dim columns As DataColumnCollection
     ' Get the DataColumnCollection from a 
     ' DataTable in a DataSet.
     columns = table.Columns
     columns.Clear()
End Sub

備註

如果藉由加入或移除資料行成功變更集合,則CollectionChanged會發生此事件。If the collection is successfully changed by adding or removing columns, the CollectionChanged event occurs.

適用於