Bold part of string in c#

Question

I tried to use this method, but it changes only the first time that textToMark is shown in the richTextBox and I want it to change every time textToMark is contained:

public static void ChangeTextcolor(string textToMark, Color color, RichTextBox richTextBox)
    {
        int startIndex = 0;

        string text = richTextBox.Text;
        startIndex = text.IndexOf(textToMark);

        System.Drawing.Font newFont = new Font("Verdana", 10f, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, 178, false);

        try
        {
            foreach (string line in richTextBox.Lines)
            {
                if (line.Contains(textToMark))
                {
                    richTextBox.Select(startIndex, textToMark.Length);
                    richTextBox.SelectionColor = color;
                    richTextBox.SelectionFont = newFont;
                }
            }
        }
        catch{ }
    }

Can you help me? Thanks

Use a RichTextBox. The simpler TextBox has no way to individually format single words — Steve, Nov 14 '16 at 13:51

score -1 · Answer 1 · answered Nov 14 '16 at 13:53

-1

You can use RichTextBox Control. Formatting Characters in Bold in a RichTextBox Control (Visual C#)

richTextBox1.Rtf = @"{\rtf1\ansi This is in \b bold\b0.}";

answered Nov 14 '16 at 13:53

mybirthname

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Thank you all. I will try it. – Ron F Nov 14 '16 at 14:20
@RonF did it help ? – mybirthname Nov 14 '16 at 16:55
It helped but still I dont know how to make specific words be bold and the other regular – Ron F Nov 14 '16 at 19:43
@RonF @"{\rtf1\ansi This is in \b bold\b0.}"; write the text like this the bold part in \b bold \b – mybirthname Nov 14 '16 at 19:52
Hi I changed my question, Can you help me? – Ron F Nov 14 '16 at 20:34

Bold part of string in c#

1 Answers1