RichTextBox (WPF) does not have string property "Text"

Question

I am trying to set/get the text of my RichTextBox, but Text is not among list of its properties when I want to get test.Text...

I am using code behind in C# (.net framework 3.5 SP1)

RichTextBox test = new RichTextBox();

cannot have test.Text(?)

Do you know how come it can be possible ?

Solution 1

to set RichTextBox text:

richTextBox1.Document.Blocks.Clear();
richTextBox1.Document.Blocks.Add(new Paragraph(new Run("Text")));

to get RichTextBox text:

string richText = new TextRange(richTextBox1.Document.ContentStart, richTextBox1.Document.ContentEnd).Text;

Solution 2

The WPF RichTextBox has a Document property for setting the content a la MSDN:

// Create a FlowDocument to contain content for the RichTextBox.
        FlowDocument myFlowDoc = new FlowDocument();

        // Add paragraphs to the FlowDocument.
        myFlowDoc.Blocks.Add(new Paragraph(new Run("Paragraph 1")));
        myFlowDoc.Blocks.Add(new Paragraph(new Run("Paragraph 2")));
        myFlowDoc.Blocks.Add(new Paragraph(new Run("Paragraph 3")));
        RichTextBox myRichTextBox = new RichTextBox();

        // Add initial content to the RichTextBox.
        myRichTextBox.Document = myFlowDoc;

You can just use the AppendText method though if that's all you're after.

Hope that helps.

Solution 3

Using two extension methods, this becomes very easy:

public static class Ext
{
    public static void SetText(this RichTextBox richTextBox, string text)
    {
        richTextBox.Document.Blocks.Clear();
        richTextBox.Document.Blocks.Add(new Paragraph(new Run(text)));
    }

    public static string GetText(this RichTextBox richTextBox)
    {
        return new TextRange(richTextBox.Document.ContentStart,
            richTextBox.Document.ContentEnd).Text;
    }
}

Solution 4

There is no Text property in the WPF RichTextBox control. Here is one way to get all of the text out:

TextRange range = new TextRange(myRTB.Document.ContentStart, myRTB.Document.ContentEnd);

string allText = range.Text;

Solution 5

string GetString(RichTextBox rtb)
{
    var textRange = new TextRange(rtb.Document.ContentStart, rtb.Document.ContentEnd);
    return textRange.Text;
}

View more solutions

Comments

[kamranicus]

This is WPF, not Win Forms.

[alvinmeimoun]

Contructor 'Run' has 0 parameter(s) but is invoked with 1 argument(s) , same for Paragraph

[Marty_in_a_Box]

Best answer that i could find so far :) Here my code if you want to paste the Length in another Textbox in a GUI: rtxb_input.SelectAll(); txb_InputLength.Text = rtxb_input.Selection.Text.Length.ToString();

[Dragomok]

@alvinmeimoun Actually, Paragraph() had a Paragraph(Inline) overload at least since .NET 3.5 (and Run(string) was also valid - it's even in the example).

[Admin]

why so complicated?

[Matheus Miranda]

How to add FontFamily in paragraph ?