Highlight text

Question

I wants do this.uploaded file is source file.please help me

            String A = textBox1.Text.Trim();

            A = A.Replace("ab", "cdq");
            A = A.Replace("ef", "ghe");
            A = A.Replace("ij", "klt");
            A = A.Replace("mn", "opf");
            A = A.Replace("qu", "rsg");
            A = A.Replace("tu", "vwd");

            textBox2.Text = (A);

if i select "ab" from textbox1,highlight "cdq" in textbox2
if i select "ef" from textbox1,highlight "ghe" in textbox2
if i select "ij" from textbox1,highlight "klt" in textbox2

Jignesh Trivedi · Answer

Hi to do this you have to use rich textbox. it has find method and selection color method using this you can achieve your task.. richTextBox1.Find(abc RichTextBoxFinds.WholeWord); richTextBox1.SelectionColor = Color.Blue; richTextBox1.Find(cqg RichTextBoxFinds.WholeWord); richTextBox1.SelectionColor = Color.Blue; richTextBox1.Find(ghe RichTextBoxFinds.WholeWord); richTextBox1.SelectionColor = Color.Blue; hope this will help you.