ActivityPreviewDesigner.OnDragEnter(ActivityDragEventArgs) ActivityPreviewDesigner.OnDragEnter(ActivityDragEventArgs) ActivityPreviewDesigner.OnDragEnter(ActivityDragEventArgs) ActivityPreviewDesigner.OnDragEnter(ActivityDragEventArgs) Method

定義

在進行拖放作業且使用者的滑鼠游標進入設計工具的界限內時,通知 ActivityPreviewDesignerNotifies the ActivityPreviewDesigner when a drag-drop operation is in progress and the user's mouse cursor enters the bounds of the designer.

protected:
 override void OnDragEnter(System::Workflow::ComponentModel::Design::ActivityDragEventArgs ^ e);
protected override void OnDragEnter (System.Workflow.ComponentModel.Design.ActivityDragEventArgs e);
override this.OnDragEnter : System.Workflow.ComponentModel.Design.ActivityDragEventArgs -> unit
Protected Overrides Sub OnDragEnter (e As ActivityDragEventArgs)

參數

例外狀況

e 包含 null 參考 (在 Visual Basic 中為 Nothing)。e contains a null reference (Nothing in Visual Basic).

適用於