Hi,

I've been using custom Group Descriptors on my RadGridView so I can specify the order the groups are sorted into however on these custom groups, (an example of how I create the descriptor is below), the column aggregates do not show. But if I do not override the group descriptor the column aggregates show on the row groups correctly. Is it possible for me to show these aggregate values on my custom groups?

Thanks for your help!!

I have an issue when loading the layout on Raddock. I'm trying to cancel a view loading if the users access has been revoked. However when I do LayoutSerializationCustomLoadingEventArgs.Cancel = true and return from OnCustomElementLoading I get the following error.

System.ArgumentOutOfRangeException
  HResult=0x80131502
  Message=Specified argument was out of the range of valid values.
Parameter name: elementTypeName
  Source=Telerik.Windows.Controls.Docking
  StackTrace:
   at Telerik.Windows.Controls.Docking.DefaultDockingLayoutFactory.NotifyCustomElementLoading(String elementTypeName, String serializationTag, Dictionary`2 attributes)
   at Telerik.Windows.Controls.Docking.DefaultDockingLayoutFactory.ReadPaneXml(XmlReader reader)
   at Telerik.Windows.Controls.Docking.DefaultDockingLayoutFactory.LoadPaneGroup(LoadingParentElementArgs args)
   at Telerik.Windows.Controls.Docking.DefaultDockingLayoutFactory.LoadSplitContainer(LoadingParentElementArgs args)
   at Telerik.Windows.Controls.Docking.DefaultDockingLayoutFactory.LoadDocking(LoadingParentElementArgs args)
   at Telerik.Windows.Controls.Docking.DefaultDockingLayoutFactory.LoadLayout(XmlReader reader)
   at Telerik.Windows.Controls.RadDocking.LoadLayout(Stream source, Boolean raiseEventsIfNoSerializationTag)
   at MyApp.LoadLayout(LoadLayoutEventParameters loadLayoutEventParameters) in.. 

Here is the code:

My views inherit RadPane so I use CustomElementLoading.

Here is my xaml

How can I control which views are loaded from the saved layout at runtime? I think it would get a bit messy if I start parsing the saved layout file and removing views. I usually save the layout when the app closes, this will remove the views the user can no longer access because I'm hoping they won't open in the first place if the access is revoked.

Hi,

I recently set the SearchMode to MatchAllTerms in my default style for the RadGridView. Ever since, my application crashes when I try to do a lookup in a RadMultiColumnComboBox.  After removing the line from the default style, everything works fine again.  Could this be a bug ?

Regards
Hans

I've followed the 'getting started' documention for the chartview. 

I've created a new WPF .NET Core project. I've then added the following references:

- Telerik.Windows.Controls

- Telerik.Windows.Controls.Chart

- Telerik.Windows.Data

Then I've added the following xaml to the main window xaml file:

<telerik:RadCartesianChart>
            <telerik:RadCartesianChart.HorizontalAxis>
                <telerik:CategoricalAxis />
            </telerik:RadCartesianChart.HorizontalAxis>
            <telerik:RadCartesianChart.VerticalAxis>
                <telerik:LinearAxis/>
            </telerik:RadCartesianChart.VerticalAxis>
        </telerik:RadCartesianChart>

Nothing shows at all - I've was expecting something/anything before going on to binding a source of data.

What am i missing?

I'm using VS 2019 and the latest public version of the .NET Core wpf components.

Thank you

The RadComboBox seems to require the user to have the cursor over the item text to be able to select the item. This is not the case for the standard ComboBox. Is it possible to change this without creating a custom ControlTemplate?

It is not bad when the items are longer strings. But we have a combo box with individual characters, and you have to click directly on the character to select the item. For whatever reason, if the items in the combo box are integers, selection works as expected.

See the attached animated gif.

Hi All,

I am opening RadWindow with ShowDialog() from viewmodel. I am not able to detect close 'X' button event. I want to prompt user before closing. 

My code looks like:

AssetViewModel.cs

var AssetWindow = new RadWindow
            {
                Header = "Asset Information",
                Owner = Application.Current.MainWindow,                
                WindowStartupLocation = System.Windows.WindowStartupLocation.CenterOwner,
                Content = new UserControl()
            };          
AssetWindow.ShowDialog();

What is the best approach to detect close event, prompt user and proceed with user selected option i.e Yes/No

 Any help would be appreciated,

Regards,

Prashant Kirpan

Hi All,

I am using RadTabControl and validation is working only if tab is selected. i.e. updating UI only for selected tab and not others.

I have a RadTabControl control with three RadTabItem. Every tabitem contains usercontrol with own view model.

For all user controls, i have used  IDataErrorInfo for validation. From main control, manually i am triggering validation using notifyproperty change i.e.  RaisePropertyChanged(string.Empty).

This is working fine only if tab is selected. validation is executing properly on other tabs but UI is not updating. 

Control Structure:

MainVM.cs

      - TabControl1VM = new TabControl1ViewModel();

      - TabControl2.VM = new TabControl2ViewModel();

MainControl.xaml

  <telerik:RadTabControl  >
            <telerik:RadTabItem  Header="Location" DataContext="{Binding TabControl1VM}" >
                <telerik:RadTabItem.Content >                    
                        <local:TabControl1></local:TabControl1>                    
                </telerik:RadTabItem.Content>
            </telerik:RadTabItem>

            <telerik:RadTabItem Header="Asset Type" DataContext="{Binding TabControl2VM}">
                <telerik:RadTabItem.Content>
                    <local:TabControl2></local:TabControl2>
                </telerik:RadTabItem.Content>
            </telerik:RadTabItem>

Any help would be appreciated,

Regards,

Prashant