EventManager プロパティ (UltraScrollBar)

UltraScrollBar 特定のイベントの発生の有効化、無効化、および制御を行うオブジェクト。

シンタックス

Visual Basic

'宣言
 
Public ReadOnly Property EventManager As UltraScrollBarEventManager

C#

public UltraScrollBarEventManager EventManager {get;}

使用例

Visual Basic

Imports Infragistics.Win
Imports Infragistics.Win.UltraWinScrollBar

Private Sub button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button3.Click

    ' Get the scrollbar control'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 UltraScrollBarEventManager

    eventManager = Me.ultraScrollBar1.EventManager

    ' Disable the ValueChanged event
    eventManager.SetEnabled(UltraScrollBarEventIds.ValueChanged, False)

    ' Call the PerformAction to scroll down.
    ' Note: This would normally cause the 'ValueChanged' event to 
    ' be raised. However, since the above code disabled the event
    ' it won't be.
    Me.ultraScrollBar1.PerformAction(ScrollBarAction.SmallIncrement)

    ' Re-enable the ValueChanged event
    eventManager.SetEnabled(UltraScrollBarEventIds.ValueChanged, True)

    ' 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 Not eventManager.AllEventsEnabled Then
        eventManager.AllEventsEnabled = True
    End If

    ' The event manager also exposes an 'IsEnabled' method
    ' to see if an event is enabled or disbled.
    If Not eventManager.IsEnabled(UltraScrollBarEventIds.ValueChanged) Then
        eventManager.SetEnabled(UltraScrollBarEventIds.ValueChanged, True)
    End If

    ' 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(UltraScrollBarEventIds.ValueChanged) Then
        ' ... 
    End If

End Sub

C#

using Infragistics.Win;
using Infragistics.Win.UltraWinScrollBar;

private void button3_Click(object sender, System.EventArgs e)
{

	// Get the scrollbar control'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.
	UltraScrollBarEventManager eventManager = this.ultraScrollBar1.EventManager;

	// Disable the ValueChanged event
	eventManager.SetEnabled(UltraScrollBarEventIds.ValueChanged, false );

	// Call the PerformAction to scroll down.
	// Note: This would normally cause the 'ValueChanged' event to 
	// be raised. However, since the above code disabled the event
	// it won't be.
	this.ultraScrollBar1.PerformAction( ScrollBarAction.SmallIncrement );

	// Re-enable the ValueChanged event
	eventManager.SetEnabled( UltraScrollBarEventIds.ValueChanged, true );

	// 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 an 'IsEnabled' method
	// to see if an event is enabled or disbled.
	if ( !eventManager.IsEnabled( UltraScrollBarEventIds.ValueChanged ) )
		eventManager.SetEnabled(UltraScrollBarEventIds.ValueChanged, 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( UltraScrollBarEventIds.ValueChanged ) )
	{
		// ... 
	}

}