C#

int indexToText = rtb.Find(text, RichTextBoxFinds.MatchCase);
if(indexToText >= 0) {
    rtb.Select(indexToText, 0);
    rtb.ScrollToCaret();
}

if (this.activeRichEdit.Find(textBox1.Text, 0, activeRichEdit.Text.Length, options) != -1)
{
    int endIndex = this.activeRichEdit.Text.Length;
    int findIndex = this.activeRichEdit.Find(textBox1.Text, 0, endIndex, options);
    this.activeRichEdit.SelectionColor = System.Drawing.Color.DarkRed;
    activeRichEdit.Select(findIndex, 0);
    activeRichEdit.ScrollToCaret();
}

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The only programmers that are better that C programmers are those who code in 1's and 0's


Programm3r
My Blog: ^_^

int foundIdx = 0;
while ((foundIdx = rtb.Find(textBox1.Text, foundIdx, rtb.TextLength, options)) >= 0) {
    rtb.Select(foundIdx, textBox1.TextLength);
    rtb.SelectionColor = System.Drawing.Color.DarkRed;
    foundIdx += textBox1.TextLength;
}

using System;
using System.Collections.Generic;
using System.Text;

namespace VirtualMethods
{
    class Program
    {
        static void Main(string[] args)
        {
            A a = new A();
            A aa = new AA();
            A ab = new AB();
            A ac = new AC();

            Console.WriteLine(a.GetValue());
            Console.WriteLine(aa.GetValue());
            Console.WriteLine(ab.GetValue());
            Console.WriteLine(ac.GetValue());

            Console.ReadLine();
        }
    }
}

class A
{
    public virtual string GetValue()
    {
        return "A";
    }
}

class AA : A
{
    public override string GetValue()
    {
        return "AA";
    }
}

class AB : A
{
    public override string GetValue()
    {
        return "AB";
    }
}

class AC : A
{
    public override string GetValue()
    {
        return base.GetValue();
    }
}