DragDrop Problem in dragging object with collapsed Grid,Canvas,DockPanel..

[Claudio]

Hi, 
i have a Problem in dragging object with collapsed Grid,Canvas,DockPanel    using RadDragDropManager.
I have an user Control like this :

<UserControl>

  <StackPanel>

   <Grid_1>

     <label>

     <myUserControl_1>

   </Grid>

   <Grid_2>

    <label>

    <myUserControl_2>

  </Grid>

   <Grid_3>

    <label>

    <myUserControl_3>

  </Grid>

</Grid>

</StackPanel>

In run time mode i collapse one of these Grid. (for example Grid_2)
When i try to drag onto myUserControl_1 i received OnDrop Event on myUserControl_2.
What's Wrong?
Anyone still get the same problem ?
Thanks.

Bye

[Tsvyatko]

Hi Claudio,

Could you please specify the version of the binaries you are using as well as if you are refering to RadDragDropManager.OnDropQuery/OnDropInfo or FrameworkElement.Drop event.

Kind regards,
Tsvyatko
the Telerik team

[Claudio]

Hi,
thanks for the answer.
I use RadDragDropManager.OnDropQuery/OnDropInfo.

Telerik.Windows.Controls

Runtime Version             v4.0.30319

Version                               2010.2.714.40

Telerik.Windows.Controls.Input

Runtime Version             v4.0.30319

Version                               2010.2.714.40

 

private void OnDropQuery(object sender, DragDropQueryEventArgs e)
        {
            switch (e.Options.Status)
            {
                case DragStatus.DropDestinationQuery:
                    e.QueryResult = e.Options.Payload is VariabilePlc;
                    e.Handled = true;
                    break;

            }
        }

        private void OnDropInfo(object sender, DragDropEventArgs e)
        {
            if (e.Options.Status != DragStatus.DropComplete) return;

            VariabilePlc vPlc = e.Options.Payload as VariabilePlc;

            List<TipoVariabilePlc> ListaAmmessi = new List<TipoVariabilePlc>(new TipoVariabilePlc[]
            {
                TipoVariabilePlc.Plc_DINT,
                TipoVariabilePlc.Plc_UINT,
                TipoVariabilePlc.Plc_INT
            });

[Tsvyatko]

Hi Claudio,

I have tested your scenario and received the same result as the one described. The issue you are facing has been resolved in more recent versions. You can check our more recent release (I have attached sample with most recent internal build) where this issue has been resolved.

However, if you prefer not to upgrade I can suggest to set IsHitTestVisible to false on the collapsed elements.

All the best,
Tsvyatko
the Telerik team

[Claudio]

THANK YOU SO MUCH !!!.
GREAT JOB!