Windows Forms: Multiple Color In RichTextBox in C#

How to Use Multiple Color in RichTextBox using C#

Step 1Click New Project, then select Visual C# on the left, then Windows and then select Windows Forms Application. Name your project "MultipleColorRichText" and then click OK

multiple color richtextStep 3: Design your form as below

multiple color richtext

Add a ColorDialog to your form as below

color dialog in c#

Step 3: Add code to handle your form

using System;
using System.Drawing;
using System.Windows.Forms;

namespace MultipleColorRichText
    public partial class Form1 : Form
        public Form1()

        Color _color = Color.Blue;
        bool _first = true;

        private void btnSend_Click(object sender, EventArgs e)
            //Set color to RichTextBox
            rtfResult.SelectionColor = _color;
            if (_first)
                rtfResult.SelectedText = txtValue.Text;
                rtfResult.SelectedText = Environment.NewLine + txtValue.Text;
            _first = false;

        private void pColor_Click(object sender, EventArgs e)
            //Open color dialog
            if (colorDialog1.ShowDialog() == DialogResult.OK)
                _color = colorDialog1.Color;
                pColor.BackColor = _color;