On Win 10 system, when drag a shape the previewkeydown event trigger

[rui]

On win10 system, when drag a shape,  the driagrm's  previewkeydown event trigger.

on win7 system this case is not exist,

on  win10 system, when open the vs with administrator, the case is also not exist  

attached is the demo 

Is any resolution to resolve this issue

[Dinko | Tech Support Engineer]

Hello ,

It seems that your demo project failed to attach. Could you resend it so we can investigate the behavior mentioned in your post on our side?

Thank you for your cooperation.

Regards,
Dinko
Telerik

[rui]

it seem i can only attach a picture file 

the demo is simple  when drag  a shape the  previewmousedown envnt is raised 

code like this :

 private void diagram_PreviewKeyDown_1(object sender, KeyEventArgs e)
        {
            MessageBox.Show("Win10 system when drag a node this event trigger");
        }

[Dinko | Tech Support Engineer]

Hello ,

We weren't able to reproduce the described behavior. We have tested it on several different machines with different OS systems (Win10, Win 8.1, Win 7) with no success. 

As a side note, it sounds very strange that PreviewKeyDown event is called when RadDiagramShape is dragged. You can double check your code if there could be any other reason causing this behavior. We have attached to this reply the sample project which we were using to test your scenario. You can check it if we are missing something.

We are looking forward to your answer.

Regards,
Dinko
Telerik

[rui]

The demo you sent is almost same as my side's

but It is strange that the problem is not exist now on my side

It is not a certain problem

I will continue to observe it

 

Thank you