Microsoft Ribbon window threw an exception

Question

I am getting an error for the Ribbon controls library, when this errors it breaks at the new() method in the class that is using the ribbon controls.

An exception of type 'System.TypeInitializationException' occurred in WpfPluggableApp.exe but was not handled in user code

Additional information: The type initializer for 'Microsoft.Windows.Controls.Ribbon.RibbonWindow' threw an exception.

But when I continue I get this error instead

An unhandled exception of type 'System.Windows.Markup.XamlParseException' occurred in PresentationFramework.dll

Additional information: 'The invocation of the constructor on type 'WpfPluggableApp.MainWindow' that matches the specified binding constraints threw an exception.' Line number '3' and line position '5'.

There is nothing I can see which is going to effect it at line 3 of the MainWindow.Xaml:

<Window x:Class="MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">

    <DockPanel>
        <Menu Name="mnu" DockPanel.Dock="Top">

        </Menu>
        <TabControl ItemsSource="{Binding Path=ViewModels}">
            <TabControl.ItemContainerStyle>
                <Style TargetType="{x:Type TabItem}">
                    <Setter Property="IsSelected" Value="{Binding Path=isSelected,Mode=TwoWay}"/>

                    <Setter Property="HeaderTemplate">
                        <Setter.Value>
                            <DataTemplate>
                                <DockPanel MinWidth="120">
                                    <Button 
                                    Command="{Binding Path=CloseCommand}"
                                    Content="X"
                                    Cursor="Hand"
                                    DockPanel.Dock="Right"
                                    Focusable="False"
                                    FontFamily="Courier" 
                                    FontSize="9"
                                    FontWeight="Bold"  
                                    Margin="0,1,0,0"
                                    Padding="0"
                                    VerticalContentAlignment="Center"
                                    Width="16" Height="16"    
                                    IsTabStop="False"
                                    />
                                    <ContentPresenter Margin="10" 
                                    Content="{Binding Path=DisplayName}" 
                                    VerticalAlignment="Center"
                                    />
                                </DockPanel>

                            </DataTemplate>
                        </Setter.Value>
                    </Setter>
                    <Setter Property="Content" Value="{Binding}" />


                </Style>
            </TabControl.ItemContainerStyle>
        </TabControl>
    </DockPanel>

Here is the xaml for the ribbon:

<ribbon:RibbonWindow x:Class="MainRibbonWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:ribbon="clr-namespace:Microsoft.Windows.Controls.Ribbon;assembly=RibbonControlsLibrary"
    Title="MainRibbonWindow"
    x:Name="MainRibbonWindow"
    WindowState="Maximized" MinHeight="480" MinWidth="640">
<Grid>
    <Grid.RowDefinitions>
        <RowDefinition Height="Auto"/>
        <RowDefinition Height="*"/>
    </Grid.RowDefinitions>

    <ribbon:Ribbon x:Name="Ribbon">

    </ribbon:Ribbon>

    <TabControl Grid.Row="1" ItemsSource="{Binding Path=ViewModels}">
        <TabControl.ItemContainerStyle>
            <Style TargetType="{x:Type TabItem}">
                <Setter Property="IsSelected" Value="{Binding Path=isSelected,Mode=TwoWay}"/>

                <Setter Property="HeaderTemplate">
                    <Setter.Value>
                        <DataTemplate>
                            <DockPanel MinWidth="120">
                                <Button 
                                    Command="{Binding Path=CloseCommand}"
                                    Content="X"
                                    Cursor="Hand"
                                    DockPanel.Dock="Right"
                                    Focusable="False"
                                    FontFamily="Courier" 
                                    FontSize="9"
                                    FontWeight="Bold"  
                                    Margin="0,1,0,0"
                                    Padding="0"
                                    VerticalContentAlignment="Center"
                                    Width="16" Height="16"    
                                    IsTabStop="False"
                                />
                                <ContentPresenter 
                                        Content="{Binding Path=DisplayName}" 
                                        VerticalAlignment="Center"
                                 />
                            </DockPanel>

                        </DataTemplate>
                    </Setter.Value>
                </Setter>
                <!--<Setter Property="Content" Value="{Binding}" />-->

            </Style>
        </TabControl.ItemContainerStyle>
    </TabControl>

</Grid>

It might be a case of needing a fresh pair of eyes to look at it! If you can see the problem let me know.

Thanks, Sam

-----------------------EDIT-----------------------------------------

Issue has been resolved, I was referencing the wrong class library.

Sam Lucas Sam Lucas · Accepted Answer · 2016-01-26T11:51:16

Sorry, I have sorted it. Had the wrong version of a class library which was making it error.

Microsoft Ribbon window threw an exception

1 Answers