BeforeToolDragBegin イベント

ツールのドラッグ操作が開始される前に発生します。

シンタックス

Visual Basic

'宣言
 
Public Event BeforeToolDragBegin As CancelableToolEventHandler

C#

public event CancelableToolEventHandler BeforeToolDragBegin

イベント データ

イベント ハンドラが、このイベントに関連するデータを含む、CancelableToolEventArgs 型の引数を受け取りました。次の CancelableToolEventArgs プロパティには、このイベントの固有の情報が記載されます。

プロパティ	解説
Cancel System.ComponentModel.CancelEventArgsから継承されます。
Tool	ツール

使用例

Visual Basic

Imports Infragistics.Shared
Imports Infragistics.Win
Imports Infragistics.Win.UltraWinToolbars

	Private Sub UltraToolbarsManager1_BeforeToolDragBegin(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinToolbars.CancelableToolEventArgs) Handles UltraToolbarsManager1.BeforeToolDragBegin
		' The 'BeforeToolDragBegin' is invoked when a tool drag
		' operation is about to be cancelled and provides a way to
		' prevent certain tools from being repositioned.
		' e.g. allow a user to create a new tool but not
		' reposition a tool once its been placed
		If Not e.Tool.OwnerIsNull And Not e.Tool.OwnerIsToolbarsManager Then
			e.Cancel = True
		End If
	End Sub

	Private Sub UltraToolbarsManager1_AfterToolDragEnd(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinToolbars.AfterToolDragEventArgs) Handles UltraToolbarsManager1.AfterToolDragEnd
		' The 'AfterToolDragEnd' is invoked after a tool drag operation
		' is complete and provides a reference to the tool after
		' the drag operation as well as an indication of what happened.
		' Note that when a tool is removed, it will not longer have
		' a reference to the toolbarsmanager or its former owner. To
		' reference the toolbarsmanager, you can use the sender of the
		' event.
		System.Diagnostics.Debug.WriteLine(String.Format("The drag of tool {0} has ended with an action of {1}", e.Tool.Key, e.DragAction))
	End Sub

C#

using Infragistics.Shared;
using Infragistics.Win;
using Infragistics.Win.UltraWinToolbars;

		private void ultraToolbarsManager1_BeforeToolDragBegin(object sender, Infragistics.Win.UltraWinToolbars.CancelableToolEventArgs e)
		{
			// The 'BeforeToolDragBegin' is invoked when a tool drag
			// operation is about to be cancelled and provides a way to
			// prevent certain tools from being repositioned.

			// e.g. allow a user to create a new tool but not
			// reposition a tool once its been placed
			if (!e.Tool.OwnerIsNull && !e.Tool.OwnerIsToolbarsManager)
				e.Cancel = true;
		}

		private void ultraToolbarsManager1_AfterToolDragEnd(object sender, Infragistics.Win.UltraWinToolbars.AfterToolDragEventArgs e)
		{
			// The 'AfterToolDragEnd' is invoked after a tool drag operation
			// is complete and provides a reference to the tool after
			// the drag operation as well as an indication of what happened.
			// Note that when a tool is removed, it will not longer have
			// a reference to the toolbarsmanager or its former owner. To
			// reference the toolbarsmanager, you can use the sender of the
			// event.
			System.Diagnostics.Debug.WriteLine(	string.Format("The drag of tool {0} has ended with an action of {1}", e.Tool.Key, e.DragAction) );
		}