textbox text color change

Question

I have textbox textbox1 and I want to change text color, but in the part of all text. For example from /* to */ like comments in visual studio?

How I can do this?

[WPF RichTextBox](http://stackoverflow.com/questions/5442067/change-color-and-font-for-some-part-of-text-in-wpf-c-sharp) — Ofiris, Dec 29 '12 at 20:26
@Andrii - Use the link that Ofiris provided then - that should work for you. — , Dec 29 '12 at 20:44
Here is an example with a Fontdialog and Colordialog. [http://stackoverflow.com/a/32036417/5230895][1] [1]: http://stackoverflow.com/a/32036417/5230895 — berta, Aug 16 '15 at 15:00

score 6 · Accepted Answer · edited May 23 '17 at 12:25

Try this one:

TextRange rangeOfText1 = new TextRange(richTextBox.Document.ContentEnd, richTextBox.Document.ContentEnd);
rangeOfText1.Text = "Text1 ";
rangeOfText1.ApplyPropertyValue(TextElement.ForegroundProperty, Brushes.Blue);
rangeOfText1.ApplyPropertyValue(TextElement.FontWeightProperty, FontWeights.Bold);

TextRange rangeOfWord = new TextRange(richTextBox.Document.ContentEnd, richTextBox.Document.ContentEnd);
rangeOfWord.Text = "word ";
rangeOfWord.ApplyPropertyValue(TextElement.ForegroundProperty, Brushes.Red);
rangeOfWord.ApplyPropertyValue(TextElement.FontWeightProperty, FontWeights.Regular);

TextRange rangeOfText2 = new TextRange(richTextBox.Document.ContentEnd, richTextBox.Document.ContentEnd);
rangeOfText2.Text = "Text2 ";
rangeOfText2.ApplyPropertyValue(TextElement.ForegroundProperty, Brushes.Blue);
rangeOfText2.ApplyPropertyValue(TextElement.FontWeightProperty, FontWeights.Bold);

or this:

public TestWindow()
{
InitializeComponent();

this.paragraph = new Paragraph();
rich1.Document = new FlowDocument(paragraph);

var from = "user1";
var text = "chat message goes here";
paragraph.Inlines.Add(new Bold(new Run(from + ": "))
{
    Foreground = Brushes.Red
});
paragraph.Inlines.Add(text);
paragraph.Inlines.Add(new LineBreak());
this.DataContext = this;
}
private Paragraph paragraph;

Source:

Change color and font for some part of text in WPF C#

And MSDN:

http://msdn.microsoft.com/en-us/library/system.windows.controls.richtextbox.document.aspx

How I can find in RichTextBox.Text text between `/*` and `*/`? — Andrii, Dec 29 '12 at 20:46
Well, that's another topic, that's all I know. Thank you for voting and accepting. — , Dec 29 '12 at 20:50
This does not answer the question! Question asks specifically for TextBox, not RichTextBox. — Gigi, May 19 '15 at 13:51

score 0 · Answer 2 · 2012-12-29T20:41:25.993

0

You can do this, however, you may want to look into the RichTextBox control where is it much easier to do.

Simple example:

richtextbox.SelectionFont = new Font("Verdana", 10, FontStyle.Regular);
richtextbox.SelectionColor = Color.Blue;

edited Dec 29 '12 at 20:41

answered Dec 29 '12 at 20:24

Don't you mean "you can't do this"? – ChrisF Dec 29 '12 at 20:30
@ChrisF - You *can*. Not sure how "pure" this is: http://www.codedblog.com/2007/09/17/owner-drawing-a-windowsforms-textbox/(http://www.codedblog.com/2007/09/17/owner-drawing-a-windowsforms-textbox/) – Dec 29 '12 at 20:34
1

It's not a `TextBox` but a control derived from a `TextBox` in much the same way that a `RichTextBox` is. – ChrisF Dec 29 '12 at 20:36
Ok. And how I can do this in RichTextBox? – Andrii Dec 29 '12 at 20:39

score 0 · Answer 3 · answered Dec 29 '12 at 20:41

You will have to derive a control from TextBox and put in code that will either allow the user to change the colour or changes the colour based on your rules.

A RichTextBox will give you the basis for this as it allows different "runs" of text each of which can have it's own styling:

<RichTextBox Name="richTB">
  <FlowDocument>
    <Paragraph>
      <Run>Paragraph 1</Run>
    </Paragraph>
    <Paragraph>
      <Run>Paragraph 2</Run>
    </Paragraph>
    <Paragraph>
      <Run>Paragraph 3</Run>
    </Paragraph>
  </FlowDocument>
</RichTextBox>

If you add controls for colour etc. then you can create a new run from the user's selection with the required style.

textbox text color change

3 Answers3

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