'宣言 Public Property SelectedAppearance As Infragistics.Win.AppearanceBase
public Infragistics.Win.AppearanceBase SelectedAppearance {get; set;}
Imports Infragistics.Win Imports Infragistics.Win.UltraWinListView Private Sub ultraListView1_ItemSelectionChanging(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinListView.ItemSelectionChangingEventArgs) Handles ultraListView1.ItemSelectionChanging ' Get a reference to the UltraListView control Dim listView As UltraListView = CType(sender, UltraListView) ' Get a reference to the last member of the SelectedItems ' collection...note that it does not matter which member we use, ' we just need any currently selected item Dim previousSelectedItem As UltraListViewItem = listView.SelectedItems.Last ' Iterate the SelectedItems collection passed through the ' event arguments this represents what the contents of the ' UltraListView's SelectedItems collection will become if this ' event is not canceled. If listView.ShowGroups AndAlso Not previousSelectedItem Is Nothing Then Dim selectedItem As UltraListViewItem For Each selectedItem In e.SelectedItems ' If any member of the new SelectedItems collection is ' in a different group than the currently selected items, ' cancel the event. If Not selectedItem.Group Is previousSelectedItem.Group AndAlso _ Not e.SelectedItems.First Is e.SelectedItems.Last Then e.Cancel = True Return End If Next End If End Sub Private Sub ultraListView1_ItemSelectionChanged(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinListView.ItemSelectionChangedEventArgs) Handles ultraListView1.ItemSelectionChanged ' Get a reference to the UltraListView control Dim listView As UltraListView = CType(sender, UltraListView) ' Apply a different appearance based on whether multiple items are selected If (e.SelectedItems.Count > 1) Then listView.ItemSettings.SelectedAppearance.BackColor = Color.LightBlue listView.ItemSettings.SelectedAppearance.BackColor2 = SystemColors.Highlight listView.ItemSettings.SelectedAppearance.BackGradientStyle = GradientStyle.Vertical Else listView.ItemSettings.SelectedAppearance.Reset() End If End Sub
using Infragistics.Win; using Infragistics.Win.UltraWinListView; using System.Diagnostics; private void ultraListView1_ItemSelectionChanging(object sender, Infragistics.Win.UltraWinListView.ItemSelectionChangingEventArgs e) { // Get a reference to the UltraListView control UltraListView listView = sender as UltraListView; // Get a reference to the last member of the SelectedItems // collection...note that it does not matter which member we use, // we just need any currently selected item UltraListViewItem previousSelectedItem = listView.SelectedItems.Last; // Iterate the SelectedItems collection passed through the // event arguments; this represents what the contents of the // UltraListView's SelectedItems collection will become if this // event is not canceled. if ( listView.ShowGroups && previousSelectedItem != null ) { foreach( UltraListViewItem selectedItem in e.SelectedItems ) { // If any member of the new SelectedItems collection is // in a different group than the currently selected items, // cancel the event. if ( selectedItem.Group != previousSelectedItem.Group && e.SelectedItems.First != e.SelectedItems.Last ) { e.Cancel = true; break; } } } } private void ultraListView1_ItemSelectionChanged(object sender, Infragistics.Win.UltraWinListView.ItemSelectionChangedEventArgs e) { // Get a reference to the UltraListView control UltraListView listView = sender as UltraListView; // Apply a different appearance based on whether multiple items are selected if ( e.SelectedItems.Count > 1 ) { listView.ItemSettings.SelectedAppearance.BackColor = Color.LightBlue; listView.ItemSettings.SelectedAppearance.BackColor2 = SystemColors.Highlight; listView.ItemSettings.SelectedAppearance.BackGradientStyle = GradientStyle.Vertical; } else listView.ItemSettings.SelectedAppearance.Reset(); }