Open Filter Dialog in RadGridViwe via Shortcut

[Julian]

Hi guys,

Well, my questions is short as subject: is there possibility to open filter dialog by pressing for instance ALT+C, instead of clicking the filter icon via mouse.

thanks,
Julian

[Dimitrina]

Hi Julian,

 Yes, you could open the filter dialog by pressing a key combination, or a button. 

If your GridView is named clubsGrid, you may show the filtering window from the code like this:

var firstFilteringDropDown = this.clubsGrid.ChildrenOfType<FilteringDropDown>();
            int columnIndex = this.clubsGrid.CurrentCellInfo.Column.DisplayIndex;
            if (firstFilteringDropDown != null)
            {
                firstFilteringDropDown[columnIndex].IsDropDownOpen = true;
            }

What you need to additionally do is to create a command, that calls this code when the combination of Alt+C occurs. 

<Window.InputBindings>
  <KeyBinding Command="ShowFilter" Key="C" Modifiers="Alt"/>
</Window.InputBindings>

With this XAML, we have added what imput gestures will trigger the command. Now, if the window has focus, and you hit Alt+C , the command "ShowFilter" will get executed. 

Best wishes,
Didie
the Telerik team

[Julian]

Thank you guys for this solution :)

regards,
Julian

[Kasper]

Hello there

I know this is an old post but since i used the code in the answer i will write my question/request here.

After the latest update of Telerik I get a NullReferenceException when i call IsDropDownOpened from codebehind. 

Source: Telerik.Windows.Controls.GridView
StackTrace: at Telerik.Windows.Controls.GridView.FilteringDropDown.OnIsDropDownOpenChanged(Boolean oldValue, Boolean newValue)

TargetSite: {Void OnIsDropDownOpenChanged(Boolean, Boolean)}

Is it possible that this can be fixed in the next version of Telerik for WPF?

Best regards,
Kasper

[Maya]

Hi Kasper,

I could apply a blind fix thanks to the StackTrace you sent, but I guess it would be much better if I can test it on my side. Could you take a look at the project attached and let me know how I can reproduce the exception on it ? 

Regards,
Maya
Telerik

 

 

[Kasper]

Hello Maya

Thank you for the fast reply.

I tried to reproduce the exception in your solution, and it made me realize that the exception was thrown because i tried to set the IsDropDownOpen on a column that did not have a filter (I got the filter of the wrong column because of some confusion with invisible columns). 

Sorry for bothering you with an exception that was not due to an error in the Telerik framework. And thank you for helping me find the actual error :) 

Best Regards,
Kasper