DataGrid.ColumnHeaderDragStarted 事件

定義

命名空間:

System.Windows.Controls

組件:

PresentationFramework.dll

當使用者開始用滑鼠拖曳欄位標頭時，會發生這種情況。

public:
 event EventHandler<System::Windows::Controls::Primitives::DragStartedEventArgs ^> ^ ColumnHeaderDragStarted;

public event EventHandler<System.Windows.Controls.Primitives.DragStartedEventArgs> ColumnHeaderDragStarted;

member this.ColumnHeaderDragStarted : EventHandler<System.Windows.Controls.Primitives.DragStartedEventArgs> 

Public Custom Event ColumnHeaderDragStarted As EventHandler(Of DragStartedEventArgs) 

事件類型

EventHandler<DragStartedEventArgs>

備註

使用者僅能在屬性 CanUserReorderColumns 為 true時，拖曳欄頭來更改欄位順序。

另請參閱

• ColumnReordering
• ColumnReordered
• ColumnHeaderDragDelta
• ColumnHeaderDragCompleted
• ColumnDisplayIndexChanged
• CanUserReorderColumns
• DisplayIndex