[Solved] Set Cell Focus Programatically With Keyboard Support

[Josh]

I'm trying to set the focus of a cell, but it doesn't seem to be working. I want to be able to have the cell focused exactly like if you were to click the cell with your mouse.

I've gone through a few different examples and none of them have worked. I'm able to get the cell to highlight, but the keyboard focus is never on the cell, or in the grid for that matter.

http://www.telerik.com/help/silverlight/gridview-how-to-set-current-cell.html
http://www.telerik.com/community/forums/silverlight/gridview/focusing-item-in-radgridview.aspx
http://www.telerik.com/community/forums/silverlight/gridview/how-to-set-focus-on-given-cell.aspx

[Dimitrina]

Hi Josh,

The information that you have found is just what you are looking for. 

The reason why you cannot actually focus the GridViewCell is that your Silverlight Plugin is not focused at all.  If you click anywhere inside your Silverlight application, then you may notice that the selected rows can be changed with the keyboard arrows.
This means that you need to focus System.Windows.Browser.HtmlPage.Plugin programmatic prior to focusing the GridViewCell as suggested here.

Please let me know in case this does not help.

Regards,
Didie
the Telerik team

[Josh]

I tried setting the plugin focus before doing the code in all the cases I linked. There is still no change.

The grid population happens due to a search button click, so the plugin already has focus, and I wouldn't think it would have lost it at any time.

[Dimitrina]

Hi Josh,

I have created a sample project on how to set a cell focus programmatic. Unfortunately I am not able to reproduce a situation when the cell is not focused.

May you please review the example and guide me on how I may get the behavior that you experience?

Regards,
Didie
the Telerik team

[Josh]

The example doesn't run for me. I get an error "Cannot create an instance of "RadGridView"".

[Josh]

I got it working now. The problem I was having was I was not using the dispatcher to update the UI. I figured that since it was happening on UI events, that the Dispatcher did not need to be used.

Why does the dispatcher have to be used?

[Dimitrina]

Hello Josh,

 Going through the dispatcher ensures that the elements are already created (i.e. one visual pass has passed). 

We may give you more detailed explanation for the particular case if you can send us a small running sample reproducing the mentioned behavior.

Greetings,
Didie
the Telerik team