How to convert FlowDocument to string?

Question

1) How to convert FlowDocument to string?

2) How to convert my string to FlowDocument?

FlowDocument contains text and pictures.

The text in the string should be preserved. Text12345

Pictures must be converted. For example, encoded: iVBORw0KGgoAAAANSUhEUgAAAFAAAABQCAYAAACOEfKtAAAABHNCSV

Text12345
iVBORw0KGgoAAAANSUhEUgAAAFAAAABQCAYAAACOEfKtAAAABHNCSV
Text67890


<text>
    Text12345
    <encoded_image>
        iVBORw0KGgoAAAANSUhEUgAAAFAAAABQCAYAAACOEfKtAAAABHNCSV
    </encoded_image>
    Text67890
</text>

XAML:

<RichTextBox x:Name="textrich" >
    <FlowDocument >
        <Paragraph/>
    </FlowDocument>
</RichTextBox>

Why don't you enumerate _YourRichTextBox.Document.Blocks_? If it is a TextRun, get the string, if it is something else, convert it to a string. — rmojab63, Feb 07 '17 at 03:02
To show how, I think you should be more specific. What do you mean by "Pictures must be converted"? do you want help on that, too? — rmojab63, Feb 07 '17 at 03:18

score 4 · Accepted Answer · answered Feb 07 '17 at 03:44

The usual way for getting the text of a RichTextBox is by using a TextRange:

string rtb = new TextRange(rtb .Document.ContentStart, rtb .Document.ContentEnd).Text;

In your case, you want to deal with different Blocks and Inlines, differently. You can enumerate them. Something like this:

var res = new StringBuilder();
foreach (Block r in rtb.Document.Blocks)
    {
        if (r is Paragraph) 
            foreach (Inline i in ((Paragraph)r).Inlines)
                if (i is Run)
                {
                    res.Append(r.ToString());
                }
                else if (i is InlineUIContainer)
                {
                     res.Append(ConvertToString((Image)((InlineUIContainer)i).Child)); // you should create ConvertToString() method 
                } 

   }

How to convert FlowDocument to string?

1 Answers1