WPF RichTextBox tokenized editing

Question

I am trying to enable the user to edit specific parts of a text (and only those parts) using a RichTextBox control.

My approach consists of using TextBox controls contained in InlineUIContainer tags in a FlowDocument . The code below shows what I've accomplished so far:

<RichTextBox IsDocumentEnabled="True">
    <FlowDocument>
        <Paragraph>
            <InlineUIContainer >
                <TextBox Text="Field" MinWidth="65"></TextBox>
            </InlineUIContainer>
            <InlineUIContainer>
                <TextBlock Text="Some text..." ></TextBlock>
            </InlineUIContainer>
        </Paragraph>
    </FlowDocument>
</RichTextBox>

The problem with this is that the user is able to select the elements in the FlowDocument and delete them... worse they can edit any text that is part of a Run element or even cut/paste text in the document.

I had the idea to set the IsReadOnly="True" on the RichTextBox but that also disables TextBoxes from being edited... Also I could handle the PreviewKeyDown but that can not handle every situation (ie: Right clicking and pressing paste).

I was wondering if there is any alternative solution or even an alternative library or third party control that helps.

Answer 1

How about setting the IsReadOnly property of the TextBox to false and the IsReadOnly property of the RichTextBox to true ?:

<RichTextBox IsDocumentEnabled="True" IsReadOnly="True">
    <FlowDocument>
        <Paragraph>
            <InlineUIContainer >
                <TextBox Text="Field" MinWidth="65" IsReadOnly="False"></TextBox>
            </InlineUIContainer>
            <InlineUIContainer>
                <TextBlock Text="Some text..." ></TextBlock>
            </InlineUIContainer>
        </Paragraph>
    </FlowDocument>
</RichTextBox>