Hello, i am regulary wondering if there is a recommended way to create a window is: create an usercontrol or create an instance in code-behind? 

The documention gives me the impression that the code-behind is the way to go and the usercontrol is just a work-around, but in most examples the usercontrol method is used.

Or it does not matter at all and one should use the method that fits best at the moment?

many greetings :-)

I have a few RadButton controls where I would like a different command to execute if the user "long presses" on the button.

For instance a single simple click would do 1 thing and a long click and hold then release would do something else.

How would I do that?

Hello

If I update, build and run as usual, I get an error. (2020.3.1221.45 -> 2021.1.215.45)

System.Windows.Markup.XamlParseException'(PresentationFramework.dll)

Cannot find resource named 'CardView_DropDownButton_Foreground_Focused'. Resource names are case sensitive

I don't use CardvView. I just update and I get an error.

(My environment is NoXaml and Themes is Window7)

Use Reference : Telerik.Windows.Controls,  Telerik.Windows.Controls.Chart, Telerik.Windows.Controls.Data, Telerik.Windows.Controls.GridView,  Telerik.Windows.Controls.Input,  Telerik.Windows.Controls.Navigation, Telerik.Windows.Data,

Thnaks.

I have a gridview with a databound datetime column in it.

I can change its dataformatstring (or stringformat in binding) so that it shows the date in a short format (dd-mm-yyyy in dutch).

However, when those cells merge, it changes its format to include the time. This means I have a lot of cells that show something like '1-1-2021 00:00:00'.

How can I change that stringformat as well? I could only find a property called contentstringformat, which doesnt do anything.

Hi,

I'm trying to migrate from RadScheduler to RadscheduleView and I am on version 2012.1.326.40 right now.

Since all my appointments are AllDayEvents, I need the week and day view to only show the AllDayArea and also the AllDayArea needs to have a vertical scrollbar.

I achieved this with the RadScheduler by using a custom theme, reflections-hacks, runtime manipulation of the visual tree and inheriting/reimplementing some AppointmentPanels.

How can I achieve this with RadScheduleView? I hope there is an easier way now.

Any help would be highly appreciated.

Best Regards
Steffen

I have a rad cartesian chart that displays temperature data that are fed at 1s interval.

There are several series. 

After about 5-10min, the UI becomes slow and unresponsive. I've tried several render option, Xaml, Bitmap & Direct2DRenderOptions with Batch mode but it still being an issue.

It doesn't seem to happen using scatter series, but then I cannot format the time label on the C

<telerik:RadCartesianChart  VirtualizingPanel.IsVirtualizing="True" Background="White"
            Zoom="{Binding Zoom,UpdateSourceTrigger=PropertyChanged,Mode=TwoWay}"
                                   PanOffset="{Binding PanOffSet,UpdateSourceTrigger=PropertyChanged,Mode=TwoWay}"
            Grid.Column="2"  Grid.Row="1"  x:Name="TemperaturelineChart" HorizontalAlignment="Stretch" 
                                    VerticalAlignment="Stretch" EmptyContent="Waiting Data...&#xD;&#xA;">

        <telerik:RadCartesianChart.Resources>
                <Style TargetType="telerik:PanZoomBar">
                    <Setter Property="Visibility" Value="{Binding IsScrollbarVisible}"/>
                </Style>

                </telerik:RadCartesianChart.Resources>

            <telerik:RadCartesianChart.Series>
                <telerik:LineSeries>
                    <telerik:LineSeries.RenderOptions>
                        <telerik:Direct2DRenderOptions DefaultVisualsRenderMode="Batch"/>
                    </telerik:LineSeries.RenderOptions>
                </telerik:LineSeries>
            </telerik:RadCartesianChart.Series>

            <telerik:RadCartesianChart.HorizontalAxis >

                <telerik:DateTimeCategoricalAxis LabelRotationAngle="90" SmartLabelsMode="SmartStep"
                                                 MajorTickInterval="10" LabelFormat="HH:mm">

                   
                    </telerik:DateTimeCategoricalAxis>

            </telerik:RadCartesianChart.HorizontalAxis>
            
            
            <telerik:RadCartesianChart.VerticalAxis >
                <telerik:LinearAxis  SmartLabelsMode="SmartStep" Minimum="0" Maximum="{Binding ElementName=Slider, Path=Value, Mode=OneWay}">
                </telerik:LinearAxis>
              
            </telerik:RadCartesianChart.VerticalAxis>
            
            
            <telerik:RadCartesianChart.Behaviors>
                <telerik:ChartPanAndZoomBehavior ZoomMode="Both" />
            </telerik:RadCartesianChart.Behaviors>
            <telerik:RadCartesianChart.InputBindings>
                <MouseBinding Command="{Binding ZoomResetCommand}" MouseAction="RightClick"/>
            </telerik:RadCartesianChart.InputBindings>
        </telerik:RadCartesianChart>
    </Grid>
</commonUtilities:BasePaneView>

Points added as:

            CategoricalDataPoint point = new CategoricalDataPoint
            {
                Label = time,
                Value = Temperature,
                Category = time
            };


            Serie.DataPoints.Add(point);

How can I improve performances?

Hello,

i was in correspondence with Martin Ivanov and we worked out some information i want to share.

Situation: Multi-Monitor-Environment with Taskbars on every monitor. Docking with floating panes and taskbar icon like: https://github.com/telerik/xaml-sdk/tree/master/Docking/FloatingPaneTaskbarIcons 

Problem: when moving a ToolWindow to the next monitor the taskbar icon stays on the monitor it was created.

Reason: some native WPF window behavior

Workaround: Create a custom ToolWindow and "refresh" icon when window is moved to an other monitor:

I hope this helps. If someone optimize the code and find a solution to prevent the flickering on "refresh" please share it!

regards marco

Hi, I'm developing an RadWizard page with RadBusyIndicator control.
I've got the busy indicator that inside have the RadWizard so I have one busy indicator for all wizard pages.
At last page of wizard I've got an input and I would to set focus to it when the busy indicator finish. But it don't happen.
I've try the solution with FocusHelper.EnsureFocus but nothing happens.

I reproduce the case and attach the project here: https://we.tl/t-nPCbEFRtjw
How can I do this?
I notice that if the BusyIndicator is in WizardPage.Content than all work as aspected.
Thanks

Hello,

Is there a way to change the default behavior of hyperlinks within a RichTextBox to allow file:/// links? After inserting a link through the UI, the control seems to automatically add the 'http://' to an address that begins with the file:/// scheme.