C# - How To Search And Highlight Text In A RichTextBox Using C#
In This C# Tutorial We Will See How To Search And Highlight Text In A RichTextBox
Using CSharp Programming Language .
Project Source Code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Search_Text : Form
{
public Search_Text()
{
InitializeComponent();
}
private void BTN_SEARCH_Click(object sender, EventArgs e)
{
int start = 0;
int end = richTextBox1.Text.LastIndexOf(textBox1.Text);
richTextBox1.SelectAll();
richTextBox1.SelectionBackColor = Color.White;
while(start < end)
{
richTextBox1.Find(textBox1.Text, start, richTextBox1.TextLength, RichTextBoxFinds.MatchCase);
richTextBox1.SelectionBackColor = Color.Yellow;
start = richTextBox1.Text.IndexOf(textBox1.Text, start) + 1;
}
}
}
}
///////////////OUTPUT:
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