バージョン

UltraExplorerBarEventManager クラス

UltraExplorerBarのイベントを管理するクラス。各イベントのEnabledフラグとネストされた「処理中」カウントを保持し、各イベントを発生させるイベントを公開します。
シンタックス
'宣言
 
Public Class UltraExplorerBarEventManager 
   Inherits Infragistics.Shared.EventManagerBase
public class UltraExplorerBarEventManager : Infragistics.Shared.EventManagerBase
使用例
Imports System.Diagnostics
Imports Infragistics.Win
Imports Infragistics.Win.UltraWinExplorerBar


	Private Sub button94_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button94.Click

		' Get UltraExplorerBar's event manager.
		'
		' The event manager is used to temporarily disable events
		' to prevent them from being raised. This can be very
		' convenient in a situation where one or more properties
		' are being set in code and the events they would normally 
		' raise would cause unnecessary or counter-productive
		' code to be executed.
		'
		' Note: All events are enabled by default.
		Dim eventManager As UltraExplorerBarEventManager = Me.ultraExplorerBar1.EventManager


		' Disable the ActiveGroupChanged/ActiveGroupChanging events
		eventManager.SetEnabled(UltraExplorerBarEventIds.ActiveGroupChanged, False)
		eventManager.SetEnabled(UltraExplorerBarEventIds.ActiveGroupChanging, False)


		' The event manager exposes an 'IsEnabled' method to see if an event
		' is enabled or disbled.  Display the enabled status of the
		' ActiveGroupChanged/ActiveGroupChanging events to verify that they are disabled.
		Debug.WriteLine(String.Format("IsEnabled returns '{0}' for the ActiveGroupChanged event", eventManager.IsEnabled(UltraExplorerBarEventIds.ActiveGroupChanged).ToString()))
		Debug.WriteLine(String.Format("IsEnabled returns '{0}' for the ActiveGroupChanging event", eventManager.IsEnabled(UltraExplorerBarEventIds.ActiveGroupChanging).ToString()))


		' Re-enable the ActiveGroupChanged/ActiveGroupChanging events
		eventManager.SetEnabled(UltraExplorerBarEventIds.ActiveGroupChanging, True)
		eventManager.SetEnabled(UltraExplorerBarEventIds.ActiveGroupChanged, True)


		' Display the enabled status of the ActiveGroupChanged/ActiveGroupChanging events
		' to verif that they have been re-enabled.
		Debug.WriteLine(String.Format("IsEnabled returns '{0}' for the ActiveGroupChanged event", eventManager.IsEnabled(UltraExplorerBarEventIds.ActiveGroupChanged).ToString()))
		Debug.WriteLine(String.Format("IsEnabled returns '{0}' for the ActiveGroupChanging event", eventManager.IsEnabled(UltraExplorerBarEventIds.ActiveGroupChanging).ToString()))


		' The 'AllEventsEnabled' property lets you enable/disable
		' all events will a single line of code. If any event is 
		' disabled the 'AllEventsEnabled' property returns false.
		If (eventManager.AllEventsEnabled = False) Then
			eventManager.AllEventsEnabled = True
		End If


		' The event manager also exposes overloaded 
		' 'IsEnabled' and 'SetEnabled' methods that take an  
		' event group so that, for example all 'before' or all
		' 'after' events can be enabled/disabled. If any event
		' in the group is disabled the 'IsEnabled' method returns
		' false.
		eventManager.SetEnabled(UltraExplorerBarEventGroups.AfterEvents, False)

		Debug.WriteLine(String.Format("IsEnabled returns '{0}' for the 'before' events", eventManager.IsEnabled(UltraExplorerBarEventGroups.BeforeEvents).ToString()))
		Debug.WriteLine(String.Format("IsEnabled returns '{0}' for the 'after' events", eventManager.IsEnabled(UltraExplorerBarEventGroups.AfterEvents).ToString()))

		eventManager.SetEnabled(UltraExplorerBarEventGroups.AfterEvents, True)


		' The 'InProgress' method will return true if the 
		' specified event is currently being raised. This
		' is often helpful in methods that can be called
		' from various points in an application to determine
		' what is triggering the call.
		If (eventManager.InProgress(UltraExplorerBarEventIds.GroupAdding)) Then
			' ... 
		End If
	End Sub
using System.Diagnostics;
using Infragistics.Win;
using Infragistics.Win.UltraWinExplorerBar;


		private void button94_Click(object sender, System.EventArgs e)
		{
			// Get UltraExplorerBar's event manager.
			//
			// The event manager is used to temporarily disable events
			// to prevent them from being raised. This can be very
			// convenient in a situation where one or more properties
			// are being set in code and the events they would normally 
			// raise would cause unnecessary or counter-productive
			// code to be executed.
			//
			// Note: All events are enabled by default.
			UltraExplorerBarEventManager eventManager = this.ultraExplorerBar1.EventManager;


			// Disable the ActiveGroupChanged/ActiveGroupChanging events
			eventManager.SetEnabled(UltraExplorerBarEventIds.ActiveGroupChanged, false );
			eventManager.SetEnabled(UltraExplorerBarEventIds.ActiveGroupChanging, false );


			// The event manager exposes an 'IsEnabled' method to see if an event
			// is enabled or disbled.  Display the enabled status of the
			// ActiveGroupChanged/ActiveGroupChanging events to verify that they are disabled.
			Debug.WriteLine(string.Format("IsEnabled returns '{0}' for the ActiveGroupChanged event", eventManager.IsEnabled(UltraExplorerBarEventIds.ActiveGroupChanged).ToString()));
			Debug.WriteLine(string.Format("IsEnabled returns '{0}' for the ActiveGroupChanging event", eventManager.IsEnabled(UltraExplorerBarEventIds.ActiveGroupChanging).ToString()));


			// Re-enable the ActiveGroupChanged/ActiveGroupChanging events
			eventManager.SetEnabled(UltraExplorerBarEventIds.ActiveGroupChanging, true );
			eventManager.SetEnabled(UltraExplorerBarEventIds.ActiveGroupChanged, true );


			// Display the enabled status of the ActiveGroupChanged/ActiveGroupChanging events
			// to verif that they have been re-enabled.
			Debug.WriteLine(string.Format("IsEnabled returns '{0}' for the ActiveGroupChanged event", eventManager.IsEnabled(UltraExplorerBarEventIds.ActiveGroupChanged).ToString()));
			Debug.WriteLine(string.Format("IsEnabled returns '{0}' for the ActiveGroupChanging event", eventManager.IsEnabled(UltraExplorerBarEventIds.ActiveGroupChanging).ToString()));


			// The 'AllEventsEnabled' property lets you enable/disable
			// all events will a single line of code. If any event is 
			// disabled the 'AllEventsEnabled' property returns false.
			if (!eventManager.AllEventsEnabled )
				eventManager.AllEventsEnabled = true;


			// The event manager also exposes overloaded 
			// 'IsEnabled' and 'SetEnabled' methods that take an  
			// event group so that, for example all 'before' or all
			// 'after' events can be enabled/disabled. If any event
			// in the group is disabled the 'IsEnabled' method returns
			// false.
			eventManager.SetEnabled(UltraExplorerBarEventGroups.AfterEvents, false);

			Debug.WriteLine(string.Format("IsEnabled returns '{0}' for the 'before' events", eventManager.IsEnabled(UltraExplorerBarEventGroups.BeforeEvents).ToString()));
			Debug.WriteLine(string.Format("IsEnabled returns '{0}' for the 'after' events", eventManager.IsEnabled(UltraExplorerBarEventGroups.AfterEvents).ToString()));

			eventManager.SetEnabled(UltraExplorerBarEventGroups.AfterEvents, true);


			// The 'InProgress' method will return true if the 
			// specified event is currently being raised. This
			// is often helpful in methods that can be called
			// from various points in an application to determine
			// what is triggering the call.
			if (eventManager.InProgress(UltraExplorerBarEventIds.GroupAdding))
			{
				// ... 
			}
		}
参照