Type | Description |
Use the SelectionChanged event to notify your application that the user selects an item (that's selectable). The control supports single or multiple selection as well. When an item is selected or unselected the control fires the SelectionChanged event. Use the SingleSel property to specify if your control supports single or multiple selection. Use the SelectCount property to get the number of selected items. Use the SelectedItem property to get the selected item. Use the SelectItem to select or unselect a specified item. Use the FocusItem property to get the focused item. If the control supports only single selection, you can use the FocusItem property to get the selected/focused item because they are always the same. Use the SelForeColor and SelBackColor properties to specify colors for selected items.
Syntax for SelectionChanged event, /NET version, on:
private void SelectionChanged(object sender) { } Private Sub SelectionChanged(ByVal sender As System.Object) Handles SelectionChanged End Sub |
private void SelectionChanged(object sender, EventArgs e) { } void OnSelectionChanged() { } void __fastcall SelectionChanged(TObject *Sender) { } procedure SelectionChanged(ASender: TObject; ); begin end; procedure SelectionChanged(sender: System.Object; e: System.EventArgs); begin end; begin event SelectionChanged() end event SelectionChanged Private Sub SelectionChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SelectionChanged End Sub Private Sub SelectionChanged() End Sub Private Sub SelectionChanged() End Sub LPARAMETERS nop PROCEDURE OnSelectionChanged(oList) RETURN |
<SCRIPT EVENT="SelectionChanged()" LANGUAGE="JScript"> </SCRIPT> <SCRIPT LANGUAGE="VBScript"> Function SelectionChanged() End Function </SCRIPT> Procedure OnComSelectionChanged Forward Send OnComSelectionChanged End_Procedure METHOD OCX_SelectionChanged() CLASS MainDialog RETURN NIL void onEvent_SelectionChanged() { } function SelectionChanged as v () end function function nativeObject_SelectionChanged() return |
The following VB sample displays the selected items:
Private Sub List1_SelectionChanged() On Error Resume Next Dim i As Long, j As Long, nCols As Long, nSels As Long, h As Long nCols = List1.Columns.Count With List1.Items nSels = .SelectCount For i = 0 To nSels - 1 Dim s As String For j = 0 To nCols - 1 s = s + .Caption(.SelectedItem(i), j) + Chr(9) Next Debug.Print s Next End With End Sub
The following VB sample displays the selected items:
Private Sub List1_SelectionChanged() Dim i As Long With List1.Items For i = 0 To .SelectCount - 1 Debug.Print .Caption(.SelectedItem(i), 0) Next End With End Sub
The following C++ sample displays the selected items:
#include "Items.h" static CString V2S( VARIANT* pv, LPCTSTR szDefault = _T("") ) { if ( pv ) { if ( pv->vt == VT_ERROR ) return szDefault; COleVariant vt; vt.ChangeType( VT_BSTR, pv ); return V_BSTR( &vt ); } return szDefault; } void OnSelectionChangedList1() { CItems items = m_list.GetItems(); for ( long i = 0; i < items.GetSelectCount(); i++ ) { long nItem = items.GetSelectedItem( i ); CString strOutput; strOutput.Format( "%s\n", V2S( &items.GetCaption( nItem, COleVariant( (long)0 ) ) ) ); OutputDebugString( strOutput ); } }
The following VB.NET sample displays the selected items:
Private Sub AxList1_SelectionChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles AxList1.SelectionChanged With AxList1.Items Dim i As Integer For i = 0 To .SelectCount - 1 Debug.WriteLine(.Caption(.SelectedItem(i), 0)) Next End With End Sub
The following C# sample displays the selected items:
private void axList1_SelectionChanged(object sender, System.EventArgs e) { for ( int i = 0; i < axList1.Items.SelectCount - 1; i++ ) { object cell = axList1.Items.get_Caption( axList1.Items.get_SelectedItem( i), 0 ); System.Diagnostics.Debug.WriteLine( cell != null ? cell.ToString() : "" ); } }
The following VFP sample displays the selected items:
*** ActiveX Control Event *** with thisform.List1.Items for i = 0 to .SelectCount - 1 wait window nowait .Caption( .SelectedItem( i ), 0 ) next endwith