InitAppearance メソッド (EmbeddableCalcDropDownUIElement)

シンタックス

Visual Basic

'宣言
 
Protected Overridable Sub InitAppearance( _
   ByRef appearance As Infragistics.Win.AppearanceData, _
   ByRef requestedPropFlags As Infragistics.Win.AppearancePropFlags _
) 

C#

protected virtual void InitAppearance( 
   ref Infragistics.Win.AppearanceData appearance,
   ref Infragistics.Win.AppearancePropFlags requestedPropFlags
)

パラメータ

appearance

requestedPropFlags

使用例

Visual Basic

Imports Infragistics.Win

 Private mouseEnteredElement As Boolean = False
 Private mouseHoveringOnElement As Boolean = False

 Protected Overrides Sub InitAppearance(ByRef appearance As AppearanceData, ByRef requestedProps As AppearancePropFlags)

     MyBase.InitAppearance(appearance, requestedProps)

     ' マウスが要素の上にあるかどうかに基づいて BackColor を
     ' 設定します
     If (Me.mouseHoveringOnElement) Then
         appearance.BackColor = Color.Green
     ElseIf (Me.mouseEnteredElement) Then
         appearance.BackColor = Color.Red
     Else
         appearance.BackColor = Color.Transparent
     End If

 End Sub


 Protected Overrides Sub OnMouseEnter()

     Me.mouseEnteredElement = True

' UIElement の子を (色変更などのために) 再描画する必要がある場合に呼び出します
If Not Me.IsDrawing then
      Me.Invalidate()
End If

 End Sub

 Protected Overrides Sub OnMouseHover()

     Me.mouseHoveringOnElement = True

' UIElement の子を位置変更またはサイズ変更する必要がある場合に呼び出します
     Me.DirtyChildElements()

 End Sub

 Protected Overrides Sub OnMouseLeave()

     Me.mouseHoveringOnElement = False
     Me.mouseEnteredElement = False

     If Not Me.IsDrawing then
      Me.Invalidate()
End If

 End Sub

 Protected Overrides ReadOnly Property WantsMouseHoverNotification() As Boolean

     Get
         Return True
     End Get

 End Property

C#

using Infragistics.Win;

private bool mouseEnteredElement = false;
private bool mouseHoveringOnElement = false;

protected override void OnMouseHover()
{

	this.mouseHoveringOnElement = true;

	// UIElement の子を位置変更またはサイズ変更する必要がある場合に呼び出します
	this.DirtyChildElements();

}

protected override bool WantsMouseHoverNotification
{

	get
	{
		return true;
	}

}


protected override void OnMouseEnter()
{

	this.mouseEnteredElement = true;

	// UIElement の子を (色変更などのために) 再描画する必要がある場合に呼び出します
	if (!this.IsDrawing)
		this.Invalidate();

}


protected override void OnMouseLeave()
{

	this.mouseHoveringOnElement = false;
	this.mouseEnteredElement = false;

	// UIElement の子を (色変更などのために) 再描画する必要がある場合に呼び出します
	if (!this.IsDrawing)
		this.Invalidate();

}


protected override void InitAppearance(ref AppearanceData appearance, ref AppearancePropFlags requestedProps)
{

	base.InitAppearance(ref appearance, ref  requestedProps);

	// マウスが要素の上にあるかどうかに基づいて BackColor を
	// 設定します
	if(this.mouseHoveringOnElement)
		appearance.BackColor = Color.Green;
	else if(this.mouseEnteredElement)
		appearance.BackColor = Color.Red;
	else
		appearance.BackColor = Color.Transparent ;

}