Hi,
I am creating a generic grid solution, based on the Telerik grid with dynamic data source.
This is my ItemsSource:

var data = new ObservableCollection<MyDataRow>(); //DynamicObject

public class MyTemplateSelector : DataTemplateSelector
{
	public override System.Windows.DataTemplate SelectTemplate(object item, System.Windows.DependencyObject container)
	{
		if(container is GridViewCell gridViewCell && item != null)
		{
			int columnIndex = gridViewCell.Column.DisplayIndex;
			DataTemplate dataTemplate = null;
			MyDataRow myDataRow = item as MyDataRow;
			if (myDataRow["Column" + columnIndex] is MyClass)
			{	// Template example 1
				StringReader stringReader = new StringReader(
				@"<DataTemplate 
				xmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation""> 
					<TextBlock Text=""{Binding Column" + columnIndex + @".ResultText}""/> 
				</DataTemplate>");
				XmlReader xmlReader = XmlReader.Create(stringReader);
				dataTemplate = XamlReader.Load(xmlReader) as DataTemplate;
			}
			else
			{   // Template example 2
				StringReader stringReader = new StringReader(
				@"<DataTemplate 
				xmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation""> 
					<TextBlock Text=""{Binding Column" + columnIndex + @"}""/> 
				</DataTemplate>");
				XmlReader xmlReader = XmlReader.Create(stringReader);
				dataTemplate = XamlReader.Load(xmlReader) as DataTemplate;
			}
			if (!dataTemplates.ContainsKey(columnIndex))
			{
				dataTemplates.Add(columnIndex, dataTemplate);
			}
			return dataTemplates[columnIndex];
		}
		return null;
	}
	// Dictionary of already defined templates
	Dictionary<int, DataTemplate> dataTemplates = new Dictionary<int, DataTemplate>();
}

So in this case, there can be up to c*x number of slightly different templates:
(c - number of columns, x - number of specific templates)

Is there any more performance wise or clearer way to solve this problem?

Thank you for any help.

I've been working with the yWorks for WPF technology for a few years now and have a chance to compare it to the Telerik WPF Diagramming framework and API sets; in my mind, these are complex and advanced UI frameworks. However, getting started is a long learning curve in many areas of geometry, some trigonometric calculations, systems programming, and some advanced animations work.  We are working to create the following technologies using the Diagramming frameworks:

• OWL 2 DSL Logic and Visualization facilities
• DSL Composition Editor and Visualization facilities
• Microsoft Graph Engine TSL Editor
• Real-time Workflow CMN and DMN Materializer and Interactive Visualization Facilities

I've been using yWorks - a fantastic technology and product, but expensive; it would be great if there was a better set of samples and tutorials around the dynamic use of the Diagramming APIs set for runtime capabilities. I think I've seen what guidance Telerik has made available to date; are there some additional resources available and what type of "professional services" might be available.

Tavi

How to set the default first node unselected when page is loaded?

Hi,

This used to work:

<telerik:RadTransitionControl
            HorizontalContentAlignment="Stretch"
            VerticalContentAlignment="Stretch"
            Margin="10,0,0,0"
            Content="{Binding EventContent}">
            <telerik:RadTransitionControl.Transition>
                <telerikTransitions:RollTransition IsRollOut="True" IsTopToBottom="False" />
            </telerik:RadTransitionControl.Transition>
        </telerik:RadTransitionControl>

with 2022 update the control no longer shows *anything*

For testing, I hardcoded the Content:

        <telerik:RadTransitionControl
            HorizontalContentAlignment="Stretch"
            VerticalContentAlignment="Stretch"
            Margin="10,0,0,0">
            <TextBlock Foreground="Aqua" FontSize="44">This is a test</TextBlock>
            <telerik:RadTransitionControl.Transition>
                <telerikTransitions:RollTransition IsRollOut="True" IsTopToBottom="False" />
            </telerik:RadTransitionControl.Transition>
        </telerik:RadTransitionControl>

This showed the textbox while in Design mode, but when the app ran, nothing was displayed

Hello,

is it possible to use the CardLayout-Property Rows but prevent wrapping?

I want to have just a single row with a horizontal scroll bar.

regards,

Tobias

Hi,

Xaml designer can't displayed content in the runtime design mode

but,  complie and excute all OK

The VS2019 project was made with WPF R3 2020, updated to WPF R1 2022  with VS2022 and compiled.

when installing wpf r1 2022, the installation folder was designated separately, and framework 4.6.2 was used.

Also, i tried to create a new one using the telerik template tool in vs2022 and tried it with

telerik ui for wpf->confiure project or upgrade wizard in 2019 existing project, but it didn't work.

Dear Team,

how i can show/load Dashboard.xaml page in RadNavigationView.Content on click of Dashboard View Item

<telerik:RadNavigationView x:Name="navigationView"
                                   PaneHeader="RadNavigationView"
                                   SelectedIndex="0"
                                   DisplayMode="Expanded"
                                   AutoChangeDisplayMode="False">
            <telerik:RadNavigationView.Items>
                <telerik:RadNavigationViewItem Content="Dashbard" Icon="&#xe303;" IconTemplate="{StaticResource IconTemplate}"  Click="RadNavigationViewItem_Click" />
                <telerik:RadNavigationViewItem Content="a" Icon="&#xe301;" IconTemplate="{StaticResource IconTemplate}"  />
                <telerik:RadNavigationViewItem Content="B" Icon="&#xe132;" IconTemplate="{StaticResource IconTemplate}"  />
                <telerik:RadNavigationViewItem Content="c" Icon="&#xe906;" IconTemplate="{StaticResource IconTemplate}"  />
            </telerik:RadNavigationView.Items>
            <telerik:RadNavigationView.PaneFooter>
                <telerik:RadNavigationViewItem Content="About" Icon="&#xe401;" 
                                               IconTemplate="{StaticResource IconTemplate}" 
                                               CommandParameter="{Binding ElementName=navigationView}"  />
            </telerik:RadNavigationView.PaneFooter>
            <telerik:RadNavigationView.Content>
                <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center">
                   
                </StackPanel>
            </telerik:RadNavigationView.Content>
        </telerik:RadNavigationView>

Hello,

I have a cartesian chart with line series based on data like this for every chart point

public class ChartEntry
{
    public int Number;
    public DateTime TimeStamp;
    public double Value1;
    public double Value2;
}

My series use Value1/2 for ValueBinding and Number for CategoryBinding. Horizontal axis is of type CategoricalAxis.

I want to add a (toggle)button to switch the horizontal axis from Number to TimeStamp (and back) during runtime.

Means, that I have to change CategoryBinding of series to TimeStamp and horizontal axis to type DateTimeContinuousAxis.

At the moment I have no clue how to do that. Any ideas? 

Thanks and regards

I am trying to update themes in a WPF application at run time.   The application is using the no XAML dlls.  The theme is being updated by replacing the resource dictionaries according to Theme change instructions.

When the resource dictionaries are replaced the theme updates for the entire application but all the tabs in the dock disappear.  New tab can be added to the Items Observable collection and they will appear in the dock.

        <telerik:RadDocking x:Name="Dock" 
                            AllowDragReorder="True"
                            PanesSource="{Binding Items, UpdateSourceTrigger=PropertyChanged}"
                            CloseButtonPosition="InPane">
            <telerik:RadDocking.DockingPanesFactory >
                <telerik:DockingPanesFactory />
            </telerik:RadDocking.DockingPanesFactory>
        </telerik:RadDocking>