ImageTransparentColor プロパティ

シンタックス

Visual Basic

'宣言
 
Public Property ImageTransparentColor As Color

C#

public Color ImageTransparentColor {get; set;}

使用例

Visual Basic

Imports Infragistics.Win
Imports Infragistics.Win.UltraWinListView


    Private Sub InitializeVisualAppearance()

        '	Set the ImageTransparentColor property to Magenta, so
        '	that pixels of that color will be masked out of images
        Me.ultraListView1.ImageTransparentColor = Color.Magenta

        '	Use the ImageBackground property of the control's Appearance to display a watermark
        Me.ultraListView1.Appearance.ImageBackground = Image.FromFile("C:\watermark.bmp")
        Me.ultraListView1.Appearance.ImageBackgroundStyle = ImageBackgroundStyle.Centered

        '	Use the GroupAppearance to configure the visual appearance for all groups
        Me.ultraListView1.GroupAppearance.FontData.Name = "Tahoma"
        Me.ultraListView1.GroupAppearance.FontData.SizeInPoints = 12.0F
        Me.ultraListView1.GroupAppearance.TextHAlign = HAlign.Center

        '	Use a solid border note that this only applies when no OS themes are active
        Me.ultraListView1.BorderStyle = UIElementBorderStyle.Solid
        Me.ultraListView1.Appearance.BorderColor = Color.LightBlue

        '	Assign Color.LightBlue to the BackColor property of the ItemSettings' ActiveAppearance
        Me.ultraListView1.ItemSettings.ActiveAppearance.BackColor = Color.LightBlue

        '	Assign Color.Black to the ForeColor property of the ItemSettings' Appearance
        Me.ultraListView1.ItemSettings.Appearance.ForeColor = Color.Black

        '	Use a gradient to depict the HotTracking background
        Me.ultraListView1.ItemSettings.HotTrackingAppearance.BackColor2 = Color.LightBlue
        Me.ultraListView1.ItemSettings.HotTrackingAppearance.BackGradientStyle = GradientStyle.Vertical

    End Sub

    Private Sub ultraListView1_ItemActivating(ByVal sender As System.Object, ByVal e As Infragistics.Win.UltraWinListView.ItemActivatingEventArgs) Handles ultraListView1.ItemActivating
        Dim listView As UltraListView = CType(sender, UltraListView)
        Dim oldActiveItem As UltraListViewItem = listView.ActiveItem
        Dim newActiveItem As UltraListViewItem = e.Item

        '	If the item that is about to be activated belongs to
        '	a different group than the last active item, reset
        '	the last active group's appearance
        If Not oldActiveItem Is Nothing AndAlso _
          Not oldActiveItem.Group Is Nothing AndAlso _
          Not newActiveItem.Group Is Nothing AndAlso _
            Not oldActiveItem.Group Is newActiveItem.Group Then
            oldActiveItem.Group.ResetAppearance()
        End If

    End Sub

    Private Sub ultraListView1_ItemActivated(ByVal sender As System.Object, ByVal e As Infragistics.Win.UltraWinListView.ItemActivatedEventArgs) Handles ultraListView1.ItemActivated
        '    Set the ForeColor of the new ActiveItem's Group's Appearance to red.
        If Not e.Item.Group Is Nothing Then e.Item.Group.Appearance.ForeColor = Color.Red

    End Sub

C#

using Infragistics.Win;
using Infragistics.Win.UltraWinListView;
using System.Diagnostics;

		private void InitializeVisualAppearance()
		{
			//	Set the ImageTransparentColor property to Magenta, so
			//	that pixels of that color will be masked out of images
			this.ultraListView1.ImageTransparentColor = Color.Magenta;

			//	Use the ImageBackground property of the control's Appearance to display a watermark
			this.ultraListView1.Appearance.ImageBackground = Image.FromFile( @"C:\watermark.bmp" );
			this.ultraListView1.Appearance.ImageBackgroundStyle = ImageBackgroundStyle.Centered;

			//	Use the GroupAppearance to configure the visual appearance for all groups
			this.ultraListView1.GroupAppearance.FontData.Name = "Tahoma";
			this.ultraListView1.GroupAppearance.FontData.SizeInPoints = 12f;
			this.ultraListView1.GroupAppearance.TextHAlign = HAlign.Center;
			
			//	Use a solid border; note that this only applies when no OS themes are active
			this.ultraListView1.BorderStyle = UIElementBorderStyle.Solid;
			this.ultraListView1.Appearance.BorderColor = Color.LightBlue;
			//	Assign Color.LightBlue to the BackColor property of the ItemSettings' ActiveAppearance
			this.ultraListView1.ItemSettings.ActiveAppearance.BackColor = Color.LightBlue;

			//	Assign Color.Black to the ForeColor property of the ItemSettings' Appearance
			this.ultraListView1.ItemSettings.Appearance.ForeColor = Color.Black;

			//	Use a gradient to depict the HotTracking background
			this.ultraListView1.ItemSettings.HotTrackingAppearance.BackColor2 = Color.LightBlue;
			this.ultraListView1.ItemSettings.HotTrackingAppearance.BackGradientStyle = GradientStyle.Vertical;
		}


		private void ultraListView1_ItemActivated(object sender, Infragistics.Win.UltraWinListView.ItemActivatedEventArgs e)
		{
			//	Set the ForeColor of the new ActiveItem's Group's Appearance to red.
			if ( e.Item.Group != null )
				e.Item.Group.Appearance.ForeColor = Color.Red;
		}

		private void ultraListView1_ItemActivating(object sender, Infragistics.Win.UltraWinListView.ItemActivatingEventArgs e)
		{
			UltraListView listView = sender as UltraListView;
			UltraListViewItem oldActiveItem = listView.ActiveItem;
			UltraListViewItem newActiveItem = e.Item;

			//	If the item that is about to be activated belongs to
			//	a different group than the last active item, reset
			//	the last active group's appearance
			if ( oldActiveItem != null &&
				 oldActiveItem.Group != null &&
				 newActiveItem.Group != null &&
				 oldActiveItem.Group != newActiveItem.Group )
				oldActiveItem.Group.ResetAppearance();		
		}