What event fires on multiselect ?

[Art]

I have a listcontrol set to MultiExtended. When the user clicks on an item the SelectedIndexChanged event fires. However, if the user holds the shift key down and clicks another item, selecting all items between clicks, the event does not fire.  I need to know that the user just added items to the SelectedItems list. What event can I use?  Thanks

Later
Art

[jtedrow]

The only icky way I have been able to overcome this issue would be to catch the KeyUp/MouseUp events on the box to check for selection change.

Is there a better way than this?  I am having the same issue as Art, where the event will not fire for Shift+Click selections with MultiExtended enabled.

Private Sub lstIncludedFields_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles lstIncludedFields.KeyUp

    'Do Code here for selection changed

End Sub




This becomes very slow however with large lists.

[Richard Slade]

Hello Art, 

Something like this is what you need I think. Please let me know if that helps, or if you need more information

private void Form1_Load(object sender, EventArgs e)
{
    foreach (RadListDataItem item in this.radListControl1.Items)
    {
        item.RadPropertyChanged += new Telerik.WinControls.RadPropertyChangedEventHandler(item_RadPropertyChanged);
    }
}

void item_RadPropertyChanged(object sender, Telerik.WinControls.RadPropertyChangedEventArgs e)
{
    if (e.Property.Name == "Selected")
    {
        RadListDataItem item = (RadListDataItem)sender;
        MessageBox.Show(item.Text + " selected = " + item.Selected.ToString());
    }
}

Regards, 
Richard

[Art]

Could you send that code in VB, although I have to admit I wil probably just use a VB ListBox, as it's selectionchanged event fires on multiselects.

[Richard Slade]

Hello Art,

here is the code in VB. Do let me know if that helps, or indeed if you have any difficulties.

Private Sub Form1_Load(sender As Object, e As EventArgs) handles Form1.Load
    For Each item As RadListDataItem In Me.radListControl1.Items

        AddHandler item.RadPropertyChanged, AddressOf item_RadPropertyChanged
    Next
End Sub

Private Sub item_RadPropertyChanged(sender As Object, e As Telerik.WinControls.RadPropertyChangedEventArgs)
    If e.Property.Name = "Selected" Then
        Dim item As RadListDataItem = DirectCast(sender, RadListDataItem)
        MessageBox.Show(item.Text & " selected = " & item.Selected.ToString())
    End If
End Sub

All the best
Richard