To test:

Create a class with properties and set the RadPropertyGrid.Item to an instance of that class.

Select one of the properties in the grid.

Set the Item to null. (Clear selection if your Item is binded to some listbox selection, for example).

The property grid should be empty now. Click in the empty space.

Notice that you can see the previous selected property name in the Description Pane.

More importantly to us for CanExecute calls, RadPropertyGrid.SelectedPropertyDefinition is not null. (even though Item==null).

This is a reference leak also since you are holding onto references after Item is set to null. :(

(Looking at the code, it looks like when Item property changes, you are setting SelectedPropertyDefinition to null, but you aren't clearing the SelectedPropertyDefinitions collection. As a result, the RadPropertyGrid.OnMouseLeftButtonDown calls SetSelectedPropertyDefinition(), and in there, it simply checks for any items in SelectedPropertyDefinitions and calls LastOrDefault(). )

Hi,

I´m using RadGridView and in the row selection (SelectedItem="{Binding RowSelected, Mode=TwoWay}") I´m loading other View and when I go back, the clicked row is still highlighted. How could I disable the row highlighted (cache) when the GridView is showed.

Best regards

We've added the RadMap control to our WPF application.  I have a custom tile provider that interfaces with a home-grown tile service.  Tee provider basically makes HTTP calls to a custom URL in order to retrieve tiles.  This provider does no caching of its own.

However, a tester here had map data for the US only, then uninstalled that map data and installed map data for Peru.  When they went back into our application, they were able to see roads on Long Island, which they shouldn't have seen.  For this reason, we believe that the RadMap control itself is caching tiles.

Does RadMap cache tiles?  If so, where is this cache and how can we empty it?

 Here is the code for the custom tile provider.  As you can see, there's no code for caching in here at all.

Hello to all,

Recently i noticed that when the gridview is binded with observablecollection, events like add, edit or delete can fired when user press keys on the keyboard or sent gridview commands, this not seems to be happening when gridview is binded with iqueryable.

So is there any way to simulate the observablecollection class behavior to iquerable and implement the add, edit, delele functions without creating my own separate functions and call them on keypress?

This morning my Windows executes last updates to Windows 10 build 1607,

Today if I try to create new scenario, and I choose RadWindow, it appers me this message (image attached).

This is already happened to someone?

I'm working on converting my project to use Implicit Styles. I've followed the Documentation to a T. I'm using NoXAML binaries, I've copied the entire set of theme XAML files into my project, merged them all in the App.xaml file, etc.

Everything I ask to use an implicit theme winds up throwing an error that says "Key cannot be null". Sometimes the entire designer is replaced with a window that says the same and gives a StackTrace. I've attached screenshots of both. 

Can anyone give me some guidance here? Telerik doesn't release crappy broken components, so I'm assuming that I'm missing something easy.

Humble me please.  :)

Hello,

is it possible to accept that the negative sign is put at the end of the number, when editing?

For example: typing "55-" will enter "-55" and will be formatted correctly when the cursor leaves the control.