Saturday, 10 May 2014

Open File Text into TextBox and Rich TextBox in Window application


Here i will explain How to use Open File Text into TextBox and Rich TextBox in Window application.

Step(1) : Form
Drag and down a button and a rich Text box from Tool Box.
Step(2) : Code
Double click on "Open File " button and write this code. Before this we have to add 2 namespace.
using System.Text;
using System.IO;

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;

using System.Text;
using System.IO;

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

private void Button1_click(object sender, EventArgs e)
Stream mystream;
OpenFileDialog openfile = new OpenFileDialog ();

if(openfile .ShowDialog() ==System.Window.Forms.DialogResult.OK)
if((mystream = openfile .OpenFile() ) ! = null)
string strfilename = openfile .FileName;

String filetext = File.ReadAllText(strfilename);
richTextBox1.text  = filetext;
Step(3) :Code
Run your application and click on "OpenFile" button and select a file.


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