public void OnItemClicked(object sender, ImageListPanelEventArgs e)
{
m_selectedIndex = (e).SelectedItem;
//remove listner
m_imagePanel.ItemClick -= OnItemClicked;
// close the drop-dwon, we are done
m_wfes.CloseDropDown();
m_imagePanel.Dispose();
m_imagePanel = null;
}
public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
m_wfes = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
if ((m_wfes == null) || (context == null))
{
return(null);
}
ImageList _imageList = GetImageList(context.Instance);
if ((_imageList == null) || (_imageList.Images.Count == 0))
{
return(-1);
}
m_imagePanel = new ImageListPanel();
m_imagePanel.BackgroundColor = Color.FromArgb(241, 241, 241);
m_imagePanel.BackgroundOverColor = Color.FromArgb(102, 154, 204);
m_imagePanel.HLinesColor = Color.FromArgb(182, 189, 210);
m_imagePanel.VLinesColor = Color.FromArgb(182, 189, 210);
m_imagePanel.BorderColor = Color.FromArgb(0, 0, 0);
m_imagePanel.EnableDragDrop = true;
m_imagePanel.Init(_imageList, 12, 12, 6, (int)value);
// add listner for event
m_imagePanel.ItemClick += OnItemClicked;
// set m_selectedIndex to -1 in case the dropdown is closed without selection
m_selectedIndex = -1;
// show the popup as a drop-down
m_wfes.DropDownControl(m_imagePanel);
// return the selection (or the original value if none selected)
return((m_selectedIndex != -1) ? m_selectedIndex : (int)value);
}
