Hello

I've attached an example, and the ContentTemplateSelector will cause a designer exception.
Build and debug works fine.

First. In using navigation I want to control everything by binding in MainWindowViewModel.
Each UserControl is a different screen.
However, the combo box and button are the same.
So, when you move the view, the data should remain the same.

This is actually implemented using RadTabControl.
Tab control does not have a hierarchy, so I want to use navigation.

[TabControl Sample.xaml] : This is automatically set to the datacontext in the window if you do not set the datacontext in the usercontrol.

<telerik:RadTabItem Header="View 1" Width="60" >
    <telerik:RadTabItem.Content>
        <userControl:UserControlView/>
    </telerik:RadTabItem.Content>
</telerik:RadTabItem>

Second. In the current source, Hierarchy 1 and 2 are set to View(UserControlMain - This is not really necessary.).
I want to open only the hierarchy by clicking on the hierarchy. (view maintained, only IsExpanded)

However, if you don't put a View in the selector, an exception will be thrown.
"Must disconnect specific child from current parent Visual before attaching to new parent Visual."
This made it happen when you choose Hierarchy 3.

Images are also attached for easy understanding.

I will be glad for your help.
thank you.

I use WPF RadRichTextBox to show/edit HTML-document containing images having restricted access. To show HTML-document inside RadRichTextBox I use HtmlFormatProvider.
In the case of using WebBrowser control, it is enough to call InternetSetCookie to pass user token to the WebRequest used there.

How can I pass the user token to the HTTP request used inside RadRichTextBox to get an image?

Hi,

I have a RadCartesianChart with a ScatterSeriesDescriptor.

Example:

 Public Class PointViewModel

 Public Property MyValueInX As ValueContainer

 Public Property MyValueInY As ValueContainer

End Class

Public Class ValueContainer

 Public Property ValueForDiagram As Double

End Class

When I try to bind ValueForDiagram I get a System.ArgumentException: "Could not find property 'MyValueInX .ValueForDiagram ' for type 'TelerikTestProjekt.ViewModel.PointViewModel'".

My XAML:

            <telerik:ScatterSeriesDescriptor ItemsSourcePath="Points" XValuePath="MyValueInX.ValueForDiagram" YValuePath="MyValueInY.ValueForDiagram ">

Is there any way I can set this binding?

Best Regards

Sandra

Hi,

I created a new net5.0 WPF application in Visual Studio (16.9.6) and installed the Progress UI for WPF Extension. I added the Telerik Nuget source and installed the package "Telerik.UI.for.Wpf.NetCore.Xaml". I added the Telerik namespace (http://schemas.telerik.com/2008/xaml/presentation) to my main view and I am able to add controls from that namespace in the XAML code just fine including Intellisense support. I also see all the Telerik controls in the VS Toolbox and I can drag controls onto my view in the designer.

But, all the controls are invisible in the designer and also at runtime. No errors during design time or compilation whatsoever. Seems like there is no default theme applied at all. I already tried to explicitly set a theme but all the controls stay invisible. Default WPF controls work without any issue...

I've been working with Telerik and WPF for 10 years now and I never had a similar issue so far. Docs and forums did not lead me on the right trace unfortunately. Help would be much appreciated!

Thanks!

 I would like to set the value of the RadRichTextBox to a property in the view Model. and similarly I would like to get the valueof the Property and bind it to the RadRichTextBox in the WPF UI.

What would be the Syntax used in the XAML file?

I have something like this below in the XAML file.

 <telerik:RadRichTextBox x:Name="radRichTextBox" DocumentInheritsDefaultStyleSettings="True" AcceptsTab="True" AcceptsReturn="True" ScrollViewer.VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Hidden" IsSelectionMiniToolBarEnabled="True" IsSpellCheckingEnabled="True" Language="en-US" IsContextMenuEnabled="True" Margin="250,190,121,70" VerticalScrollBarVisibility="Hidden"/>
  <telerik:TxtDataProvider Source="{Binding Path=Customer.Notes,ElementName=radRichTextBox, Mode=TwoWay}"/>

But the value is not bound to the Path "Customer.Notes" in the viewmodel.

Hi,

My ViewModel implements INotifyDataErrorInfo

I want to use an attached property Validation.ValidationAdornerSiteFor

RadComboBox highlights an error but tooltip is empty

Is there something I need to enable?

                            <telerik:RadComboBox
                                ItemsSource="{Binding Path=ItemsSource}" Validation.ValidationAdornerSiteFor="{Binding ElementName=selectorBehavior}"
                                AllowMultipleSelection="True"
                                MultipleSelectionSeparator=";">
                                <b:Interaction.Behaviors>
                                    <behaviors:SelectedItemsMultiSelectorBehavior x:Name="selectorBehavior" SelectedItems="{Binding Path=SelectedItems, Mode=TwoWay}" />
                                </b:Interaction.Behaviors>
                            </telerik:RadComboBox>

Hi to all,

Maybe someone can help me with my problem. Thank you all in advance for any suggestions.

When I programmatically add a row/item to the RadGridView I have always am empty row above the last row:

Here is my XAML code:

            <Border x:Name="m_borderOperands" BorderThickness="3" CornerRadius="5" >
                <telerik:RadGridView x:Name="m_dgOperands" Margin="1" Background="#FF2C2C2C" CanUserGroupColumns="False" 
                                     telerik:StyleManager.Theme="Expression_Dark" BorderThickness="0"
                                     SelectionMode="Extended" SelectionUnit="Mixed" CanUserSortColumns="False" 
                                     CanUserSelectColumns="True" ShowColumnFooters="False" ShowColumnHeaders="True" 
                                     IsFilteringAllowed="False" CanUserFreezeColumns="False" CanUserDeleteRows="False" 
                                     ClipboardPasteMode="Cells" ClipboardCopyMode="Cells" 
                                     ScrollViewer.HorizontalScrollBarVisibility="Auto"
                                     ScrollViewer.VerticalScrollBarVisibility="Visible" 
                                     ShowGroupPanel="false" EditTriggers="TextInput" GroupRenderMode="Flat" 
                                     FontSize="14" MaxWidth="2560" MaxHeight="1600" ValidatesOnDataErrors="InEditMode" 
                                     EnableColumnGroupsVirtualization="True" EnableColumnVirtualization="True" 
                                     EnableRowVirtualization="True" CanUserInsertRows="False" EnableStickyGroupHeaders="False" 
                                     ColumnsSelectionButtonVisibility="Collapsed" ShowGroupFooters="True"
                                     FrozenColumnsSplitterVisibility="Collapsed" />
            </Border>

Here are my GridView styles:

    <UserControl.Resources>
        <Style TargetType="telerik:GridViewHeaderCell">
            <Setter Property="LayoutTransform">
                <Setter.Value>
                    <RotateTransform Angle="-90" />
                </Setter.Value>
            </Setter>
            <EventSetter Event="PreviewMouseUp" Handler="GridViewHeaderCell_PreviewMouseUp"/>
            <Setter Property="TextWrapping" Value="NoWrap"/>
            <Setter Property="Margin" Value="1,10,1,3"/>
        </Style>

        <Style TargetType="telerik:GridViewHeaderRow">
            <Setter Property="MinHeight" Value="10"/>
        </Style>
        <Style TargetType="telerik:GridViewFooterRow">
            <Setter Property="Background" Value="#FF303030"/>
        </Style>
        <Style TargetType="telerik:GridViewCell">
            <Style.Triggers>
                <Trigger Property="Value" Value="1">
                    <Setter Property="Background" Value="#4CFFFF00" />
                </Trigger>
                <Trigger Property="Value" Value="2">
                    <Setter Property="Background" Value="#4C32CD32" />
                </Trigger>
            </Style.Triggers>
        </Style>
        <Style TargetType="telerik:CommonColumnHeader">
            <Setter Property="FontSize" Value="14"/>
            <Setter Property="FontWeight" Value="Bold"></Setter>
            <Setter Property="Background" Value="#FF303030" />
        </Style>
        <DataTemplate x:Key="GridViewCellImageTextTemplate">
            <StackPanel Orientation="Horizontal">
                <Image Source="{Binding Image}" Margin="0,0,5,0" MaxHeight="16" MaxWidth="16" />
                <TextBlock Text="{Binding InfoText}"/>
            </StackPanel>
        </DataTemplate>
    </UserControl.Resources>

        private void AddStepToDataGrid(SelmoCreatorStepBase stepBase, int idxInsert)
        {
            if (idxInsert >= 0)
            {
                m_dgOperands.Items.Insert(idxInsert, stepBase);
            }
            else
            {
                m_dgOperands.Items.Add(stepBase);
            }
        }

I appreciate any help.

Best regards

Christoph