public DragStartingEventArgs SendDragStarting(IView element)
{
var args = new DragStartingEventArgs();
DragStartingCommand?.Execute(DragStartingCommandParameter);
DragStarting?.Invoke(this, args);
if (!args.Handled)
{
args.Data.PropertiesInternal.Add("DragSource", element);
}
if (args.Cancel || args.Handled)
{
return(args);
}
_isDragActive = true;
if (args.Data.Image == null && element is IImageElement ie)
{
args.Data.Image = ie.Source;
}
if (String.IsNullOrWhiteSpace(args.Data.Text))
{
args.Data.Text = element.GetStringValue();
}
return(args);
}
private void OnDragQuery(object sender, DragDropQueryEventArgs e)
{
if (e.Options.Status == DragStatus.DragQuery)
{
e.Options.Payload = _resultsGrid.SelectedItem;
if (DragStartingCommand != null)
{
DragStartingCommand.Execute(e);
}
var cue = new Border();
cue.Style = Application.Current.Resources["DragBorderStyle"] as Style;
var content = new ContentControl();
content.ContentTemplate = ResultTemplates.Count > 0 ? ResultTemplates[0] : null;
content.Content = _resultsGrid.SelectedItem;
cue.Child = content;
e.Options.DragCue = cue;
RadDragAndDropManager.DragCueOffset = GetEffectiveDragOffset(e.Options);
QuickSearchText = string.Empty;
ExecuteCloseCommand();
SelectedResult = _resultsGrid.SelectedItem;
}
e.QueryResult = true;
}
