WPF Richtextbox Bindable in .net 4.5

Question

So I'm trying to use David Veeneman's Bindable WPF RichTextBox here in my .net 4.5 project. After adding the control and the ValueConverter in my code I noticed only the the public object Convert() will be triggered but the public object ConvertBack() not.

After reading the comments to this project I changed following parts of the control source code.

private static void OnDocumentChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
    var thisControl = (EcoRichTextBox)d;
    if (thisControl.m_InternalUpdatePending > 0)
    {
        thisControl.m_InternalUpdatePending--;
        return;
    }
    // Changed:
    try
    {
        thisControl.TextBox.Document = (e.NewValue == null) ? new FlowDocument() : (FlowDocument)e.NewValue;
    }
    catch { }
    thisControl.m_TextHasChanged = false;
} 

And this Event Handler:

private void OnTextChanged(object sender, TextChangedEventArgs e)
{
    // Set the TextChanged flag
    m_TextHasChanged = true;

    // Changed:
    Document = TextBox.Document;
}

Now the the both method of the ValueConverter worked fine but events like private void OnNormalTextClick(object sender, RoutedEventArgs e) causes a FatalExecutionEngineError on Runtime.

So i wonder if there are major changes form WPF 3.5 to 4.5?

Or anybody have an idea to work around this?

---

Update

Binding in XAML

<uc:FsRichTextBox Margin="5"
    Document="{Binding Path=Ereignis.Bericht, 
    Converter={StaticResource flowDocumentConverter}, 
    UpdateSourceTrigger=PropertyChanged, NotifyOnSourceUpdated=True}" />

Execrate

can you just show how you make the binding please ? – Limit

Have you installed .NET framework 4.6 (even if you target 4.5)? Are your trying in Release or Debug? Also, I can't reproduce on by box with the demo and your changes, do you have a full repro code? – Testosterone

@SimonMourier At my current development machine is .NET 4.5.1 installed. Target still 4.5 – Execrate

Answer 1

I ran the demo you linked here in VS2015 with target framework 4.0 and 4.5. It will not update when I take out the two way data binding.

Add to your RTB. Two way data binding and a name:

Mode=TwoWay 
x:Name="EditBox" 

I think rather than managing the text change yourself here, remove this:

// Changed:
Document = TextBox.Document;

Use an event handler to update the data.

Then in your event handler that is managing your updates (I am assuming a button click? And allow this to manage the update.

this.EditBox.UpdateDocumentBindings();

The x:name attribute is valuable.

This is all found in the source code.

If you can be more clear about how your project is arranged I can provide more detail. But for starters, I would do this. Stick more closely to the provided example.

Juggler