AG_E_UNKNOWN_ERROR After Upgrading from Q3.1103 to Q3.1314

[Kirill Prokopenko]

Hello,

I'm having a issue getting 'AG_E_UNKNOWN_ERROR' after upgrading the Telerik libs from Q3.1103 to Q3.1314.  I've tried repeated attempts at debugging but am unable to get any clearer a message than the following:

System.Windows.Markup.XamlParseException occurred

  Message="AG_E_UNKNOWN_ERROR [Line: 37 Position: 30]"

  LineNumber=37

  LinePosition=30

  StackTrace:

       at System.Windows.Application.LoadComponent(Object component, Uri resourceLocator)

       at Foo.Controls.ThemeSelector.InitializeComponent()

       at Foo.Controls.ThemeSelector..ctor()

  InnerException: 

This is the XAML it's trying to parse:

<UserControl

    x:Class="Foo.Controls.ThemeSelector"

    

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 

    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

    xmlns:telerik="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Input"

    Margin="3,0,3,0">

    

    <Grid>

        <Grid.ColumnDefinitions>

            <ColumnDefinition Width="Auto" />

            <ColumnDefinition Width="Auto" />

            <ColumnDefinition Width="Auto" />

            <ColumnDefinition Width="Auto" />

        </Grid.ColumnDefinitions>

        <Grid.RowDefinitions>

            <RowDefinition Height="Auto" />

        </Grid.RowDefinitions>

        

        <TextBlock Grid.Column="0" Text="Theme" VerticalAlignment="Center" />

        <telerik:RadComboBox Grid.Column="1" x:Name="comboThemes" VerticalAlignment="Center" SelectionChanged="ComboThemes_SelectionChanged" 

                             Margin="3,0,0,0">

            <telerik:RadComboBox.ItemTemplate>

                <DataTemplate>

                    <TextBlock Text="{Binding Name}">

                        <ToolTipService.ToolTip>

                            <ToolTip BorderThickness="1" BorderBrush="DarkGray">

                                <ToolTip.Effect>

                                    <DropShadowEffect BlurRadius="20" ShadowDepth="5" />

                                </ToolTip.Effect>

                                <Image Source="{Binding Thumbnail}" />

                            </ToolTip>

                        </ToolTipService.ToolTip>

                    </TextBlock>

                </DataTemplate>

            </telerik:RadComboBox.ItemTemplate>

        </telerik:RadComboBox>

        <TextBlock x:Name="labelColorScheme" Grid.Column="2" Text="Color Scheme" VerticalAlignment="Center" Margin="3,0,0,0" Visibility="Collapsed" />

        <telerik:RadComboBox Grid.Column="3" x:Name="comboColorSchemes" VerticalAlignment="Center" SelectionChanged="ComboThemes_SelectionChanged" 

                             Margin="3,0,0,0" Visibility="Collapsed">

            <telerik:RadComboBox.ItemTemplate>

                <DataTemplate>

                    <TextBlock Text="{Binding Name}">

                        <ToolTipService.ToolTip>

                            <ToolTip BorderThickness="1" BorderBrush="DarkGray">

                                <ToolTip.Effect>

                                    <DropShadowEffect BlurRadius="20" ShadowDepth="5" />

                                </ToolTip.Effect>

                                <Image Source="{Binding Thumbnail}" />

                            </ToolTip>

                        </ToolTipService.ToolTip>

                    </TextBlock>

                </DataTemplate>

            </telerik:RadComboBox.ItemTemplate>

        </telerik:RadComboBox>

    </Grid>

</UserControl>

The position where the parse exception says it is coming from is right after closing of the first telerik:RadComboBox element.

Any help you can provide would be appreciated,

[Valeri Hristov]

Hi Ibrahim,

Do you use a custom theme/style for RadComboBox? It is possible that in the custom theme you are using a property that is now deleted, hence the error. Could you open a new support ticket and send me a simple application that could be used to observe the problem?

Kind regards,
Valeri Hristov
the Telerik team

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[Kirill Prokopenko]

Hi again!

Yes, the problem was in custom theme that was based on a Telerik theme from a previous version.

Thanks!