Multiple colors in a C# .NET label

Question

I\'m looking for a way to display multiple colors in a single C#/.NET label. E.g the label is displaying a series of csv separated values that each take on a color dependin

Answer 1

I'm using colored labels quite often to mark keywords in red color etc. Like in Phil Wright's answer I use a RichTextBox control, remove the border and set the background color to SystemColors.Control.

To write colored text the control is first cleared and then I use this function to append colored text:

private void rtb_AppendText(Font selfont, Color color, Color bcolor, 
                        string text, RichTextBox box)
    {
            // append the text to the RichTextBox control
            int start = box.TextLength;
            box.AppendText(text);
            int end = box.TextLength;

            // select the new text
            box.Select(start, end - start);
            // set the attributes of the new text
            box.SelectionColor = color;
            box.SelectionFont = selfont;
            box.SelectionBackColor = bcolor;
            // unselect
            box.Select(end, 0);

            // only required for multi line text to scroll to the end
            box.ScrollToCaret();
    }

If you want to run this function with "mono" then add a space before every new colored text, or mono will not set new the color correctly. This is not required with .NET

Usage:

myRtb.Text = "";
rtb_AppendText(new Font("Courier New", (float)10), 
                   Color.Red, SystemColors.Control, " my red text", myRtb);
rtb_AppendText(new Font("Courier New", (float)10), 
                   Color.Blue, SystemColors.Control, " followed by blue", myRtb);