how to create a Relation between two classes from code behind. created a relation for particular class but unable to define relation.

An unhandled ArgumentNullException  exception appears after scrolling of the document to the third page,and the document is viewed fine at least in chrome and edge browsers.

Here is the stack trace:

System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at Telerik.Windows.Documents.Fixed.FormatProviders.Old.Pdf.PdfElementToFixedElementTranslator.CreateDestination(Destination source, PdfFormatProvider provider)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Old.Pdf.PdfElementToFixedElementTranslator.CreateGoToAction(GoToAction source, PdfFormatProvider provider)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Old.Pdf.PdfElementToFixedElementTranslator.CreateAction(Action source, PdfFormatProvider provider)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Old.Pdf.PdfElementToFixedElementTranslator.CreateLinkAnnotation(Link source, PdfFormatProvider provider)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Old.Pdf.PdfElementToFixedElementTranslator.CreateAnnotation(Annot source, PdfFormatProvider provider)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.PdfFormatProvider.CopyAnnotationsFromPageSource(Page source, AnnotationCollection annotations)
   at Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.PdfFormatProvider.LoadPageAnnotations(RadFixedPage page)
   at Telerik.Windows.Documents.Fixed.Model.RadFixedPage.LoadAnnotations()
   at Telerik.Windows.Documents.Fixed.UI.Layers.AnnotationsUILayer.Initialize(UILayerInitializeContext context)
   at Telerik.Windows.Documents.UI.FixedPagePresenterBase.InitializeUILayers(UILayerInitializeContext context)
   at Telerik.Windows.Documents.UI.FixedPagePresenter.InitializeUILayers(UILayerInitializeContext context)
   at Telerik.Windows.Documents.UI.FixedDocumentPresenterBase.GetPagePresenter(FixedPageLayoutInfo pageInfo)
   at Telerik.Windows.Documents.UI.FixedDocumentPagesPresenter.UpdateVisiblePages(IEnumerable`1 visiblePages)
   at Telerik.Windows.Documents.UI.FixedDocumentPagesPresenter.ArrangeOverride(Size arrangeBounds)
   at System.Windows.FrameworkElement.ArrangeCore(Rect finalRect)
   at System.Windows.UIElement.Arrange(Rect finalRect)
   at System.Windows.ContextLayoutManager.UpdateLayout()
   at System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)
   at System.Windows.Media.MediaContext.InvokeOnRenderCallback.DoWork()
   at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
   at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
   at System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

Can you please help with this error investigation?

The problem document: https://drive.google.com/file/d/0B8STNPYlNrMqZlpRS0RiRkdyeFE/view?usp=sharing

Telerik version is 2015.3.1104.45
We are using it with .net 4.6.1, under Windows 10

I have icons that are available as XAML code (Viewbox). I would like to add a XAML Icon to the button. The following code works:

This code does not work:

How can I include an XAML icon as ImageSource?

Hi,

We've created a base class/control which implements RadGridView (i.e. BaseGridView : RadGridView) which features code-behind logic that is bound to the UI's RadGridView, which we'd like to use across our application to elimintate repeated code.

We were able to create a solution that worked, however, we were required to create the RadContextMenu and the items manually in the base controls' constructor, where we would prefer to declare the RadContextMenu and the items in the XAML of the base control, like so:

<telerik:RadGridView x:Class="MyModule.BaseGridView"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
             xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
             mc:Ignorable="d" 
             d:DesignHeight="300" d:DesignWidth="300">
...
<telerik:RadContextMenu x:Name="GridContextMenu">
            <telerik:RadContextMenu.Items>
                <telerik:RadMenuItem Name="mnuFilterItem" Header="Filter Selected" Click="FilterMenuItem_OnClick"/>
            </telerik:RadContextMenu.Items>
        </telerik:RadContextMenu>
</telerik:RadContextMenu.ContextMenu>
...
</telerik:RadGridView>

Here is sample usage in a View which implements the base control:

...

<views:BaseGridView Grid.Row="1" 
                            ItemsSource="{Binding Path=MyData}" 
                             AutoGenerateColumns="False" 
                             IsReadOnly="False" 
                             RowIndicatorVisibility="Visible"
                             HorizontalAlignment="Stretch"
                             SelectionMode="Extended"
                             SelectionUnit="Mixed"
                             ClipboardPasteMode="AllSelectedCells">

...

The XAML implementation is triggering the FilterMenuItem_OnClick event from the View which inherits this base view/control, however, we are experiencing a XAML exception when viewing the XAML in the designer of the View which is implementing the base control:

Method not found: 'Void Telerik.Windows.Controls.RadMenuItem.add_Click(Telerik.Windows.RadRoutedEventHandler)'.

Kindly advise. We have also tried manually hooking up the filter's click event in code-behind in the inheriting View's constructor like so:

mnuFilterItem.Click += new RadRoutedEventHandler(FilterMenuItem_OnClick);

However, the XAML exception in the implementing View persists.

Kind regards

Hello,

I have a very basic statement for adding InlineUIContainers to my RadRichTextBox:

var customControl = new ​CustomControl((​CustomObject)container.SelectedObject) { Height = 480, Width = 270 }; ​
var uiContainer      = new InlineUIContainer(customControl , new Size(480,270));
this.SelectedView.TelerikRichTextBox.InsertInline(uiContainer);

The custom control successfully displays within the RadRichTextbox, and can be size accordingly.  The problem is when I export as PDF, the resulting render control to image becomes distorted and no longer acceptable for document presentation.  The export code is as follows:

public byte[] ExportPDF()
{     
    PdfFormatProvider provider = new PdfFormatProvider();           
    provider.ExportSettings = new PdfExportSettings();     
    provider.ExportSettings.InlineUIContainersExportMode = PdfInlineUIContainersExportMode.Image;
    return provider.Export(this.TelerikRichTextBox.Document);
}

Are there properties that I am unaware of that will aid in proper rendering of the control?  

Ok, so I'm doing a vstudio-like interface using raddocking. I have a pane group on the left and right and mode of the user interaction will be with the right group.

I also have a radmenu and radtoolbar at the top of the main window. I have a File/Close menu option. It's bound to a CloseCommand in my MainWindow's viewmodel but I get stuck there.

Using MVVM, how best to close the RadPane? I can add the EventToCommandBehavior to the xaml. Then I can catch the command in my MainWindow's ViewModel. The problem is that once I'm in the ViewModel, I don't know how to tell the RadPane's View to close the pane in such a way that it's PreviewClose event fires so I can test to see if the user wants to save changes etc. Supposedly, in MVVM, you're not supposed to be playing with UI stuff in the VM.

To put it more simply, I want to ask the user if they need to save changes when the hit file close. I don't see how to do that in a VM without breaking MVVM rules.

Even using the examples seem to break MVVM rules. Passing a radpane to a command seems like it breaks MVVM rules.

Any insight would be greatly appreciated. (BTW, we are using prism). I am new to MVVM and right now, it seems very difficult to do simple stuff.

Thanks ... Ed

We have a data model which has the notion of "layers" where each layer has a collection of entities that I want to plot on the map. Each layer has properties to control layer visibility (and hence visibility of entities on that layer) on/off and also by zoom range (which differs for each layer). My thought is that I should be able to add a visualisation layer to the map control for each of the layers in my data model, but I can't see how to bind to a collection of layers. 

Is what I describe possible and/or the best approach to the problem I'm trying to solve?

Thanks.