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;
using System.IO;
namespace notpad
{
public partial class Notepad : Form
{
string pt = "";
bool save_flag = false;
int countss = 0;
public Notepad()
{
InitializeComponent();
}
private void fontToolStripMenuItem_Click(object sender, EventArgs e)
{
if (fontDialog1.ShowDialog() == DialogResult.OK)
{
if (richTextBox1.SelectedText != "")
{
richTextBox1.Font = fontDialog1.Font;
}
}
}
private void openToolStripMenuItem_Click(object sender, EventArgs e)
{
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
openFileDialog.Filter = "Text Files (*.txt)|*.txt|All Files (*.*)|*.*";
if (openFileDialog.ShowDialog(this) == DialogResult.OK)
{
string path = openFileDialog.FileName;
pt = path;
int pos = path.LastIndexOf("\\");
string ss = path.Substring(pos + 1);
this.Text = "Notepad - " + ss;
// Open the file to read from.
using (StreamReader sr = File.OpenText(path))
{
string s = "";
while ((s = sr.ReadLine()) != null)
{
this.richTextBox1.AppendText(s + Environment.NewLine);
countss = countss + s.Length + 1;
}
}
}
}
private void newToolStripMenuItem_Click(object sender, EventArgs e)
{
if (this.Text == "Notepad - Untitled")
{
string s = from_close();
this.richTextBox1.Clear();
}
//notpad.Notepad n = new Notepad();
//n.Show();
}
private void printToolStripMenuItem_Click(object sender, EventArgs e)
{
printDialog1.ShowDialog();
}
private void saveToolStripMenuItem_Click(object sender, EventArgs e)
{
string path = "";
saveFileDialog1.DefaultExt = ".txt";
saveFileDialog1.FileName = "*.txt";
saveFileDialog1.Filter = "Text Files (*.txt)|*.txt|All Files (*.*)|*.*";
if (saveFileDialog1.ShowDialog() == DialogResult.OK)
{
path = saveFileDialog1.FileName;
pt = path;
if (!File.Exists(path)) //if file does not exits
{
// Create a file to write to.
using (StreamWriter sw = File.CreateText(path))
{
for (int i = 0; i < richTextBox1.Lines.Length; i++)
{
sw.WriteLine(richTextBox1.Lines[i]);
countss = countss + richTextBox1.Lines[i].Length + 1;
save_flag = true;
}
}
countss = countss - 1;
}
else if (File.Exists(path)) //if file is exist
{
using (StreamWriter sw = File.CreateText(path))
{
for (int i = 0; i < richTextBox1.Lines.Length; i++)
{
sw.WriteLine(richTextBox1.Lines[i]);
countss = countss + richTextBox1.Lines[i].Length + 1;
save_flag = true;
}
}
}
}
int pos = path.LastIndexOf("\\");
string ss = path.Substring(pos + 1);
this.Text = "Notepad - " + ss;
}
private void undoToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Undo();
}
private void cutToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Cut();
change_Pest();
}
private void copyToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Copy();
change_Pest();
}
private void pestToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Paste();
}
private void deleteToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Cut();
change_Pest();
}
private void findToolStripMenuItem_Click(object sender, EventArgs e)
{
}
private void replaceToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.FindForm();
}
private void printSetupToolStripMenuItem_Click(object sender, EventArgs e)
{
}
private void exitToolStripMenuItem_Click(object sender, EventArgs e)
{
// from_close();
this.Close();
}
private void editToolStripMenuItem_Click(object sender, EventArgs e)
{
}
private void richTextBox1_TextChanged(object sender, EventArgs e)
{
findToolStripMenuItem.Enabled = true;
findnextToolStripMenuItem.Enabled = true;
replaceToolStripMenuItem.Enabled = true;
undoToolStripMenuItem.Enabled = true;
cutToolStripMenuItem.Enabled = false;
copyToolStripMenuItem.Enabled = false;
deleteToolStripMenuItem.Enabled = false;
//MessageBox.Show("text selected");
}
private void richTextBox1_MouseCaptureChanged(object sender, EventArgs e)
{
cutToolStripMenuItem.Enabled = true;
copyToolStripMenuItem.Enabled = true;
deleteToolStripMenuItem.Enabled = true;
}
private void change_Pest()
{
cutToolStripMenuItem.Enabled = false;
copyToolStripMenuItem.Enabled = false;
deleteToolStripMenuItem.Enabled = false;
pestToolStripMenuItem.Enabled = true;
}
private void Notepad_FormClosing(object sender, FormClosingEventArgs e)
{
from_close();
}
private void dateTimeToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.AppendText(DateTime.Now.ToShortDateString().ToString() + " " + DateTime.Now.ToShortTimeString().ToString());
}
private void menuStrip1_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
{
}
private void Notepad_Load(object sender, EventArgs e)
{
this.Text = "Notepad -" + " Untitled";
this.richTextBox1.Clear();
}
private void viewToolStripMenuItem_Click(object sender, EventArgs e)
{
}
private string from_close()
{
string rtn_string = "";
if (richTextBox1.Modified == true)
{
if (this.Text == "Notepad - Untitled")
{
DialogResult dr = MessageBox.Show("Do you want to save changes to Untitled ?", "Notepad", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question);
if (dr == DialogResult.Yes)
{
saveFileDialog1.DefaultExt = ".txt";
saveFileDialog1.FileName = "*.txt";
saveFileDialog1.Filter = "Text Files (*.txt)|*.txt|All Files (*.*)|*.*";
if (saveFileDialog1.ShowDialog() == DialogResult.OK)
{
string path = rtn_string = saveFileDialog1.FileName;
if (!File.Exists(path)) //if file does not exits
{
// Create a file to write to.
using (StreamWriter sw = File.CreateText(path))
{
for (int i = 0; i < richTextBox1.Lines.Length; i++)
{
sw.WriteLine(richTextBox1.Lines[i]);
}
}
}
else if (File.Exists(path)) //if file is exist
{
using (StreamWriter sw = File.CreateText(path))
{
for (int i = 0; i < richTextBox1.Lines.Length; i++)
{
sw.WriteLine(richTextBox1.Lines[i]);
}
}
}
}
}
}
else //if text file is existing
{
// MessageBox.Show(richTextBox1.Text.Length+" "+countss);
if (richTextBox1.Text.Length != countss || save_flag == false)
{
MessageBox.Show("Do you want to save changes to " + pt + " ?", "Notpad", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question);
using (StreamWriter sw = File.CreateText(pt))
{
for (int i = 0; i < richTextBox1.Lines.Length; i++)
{
sw.WriteLine(richTextBox1.Lines[i]);
}
}
}
}
}
return rtn_string;
}
private void aboutNotepadToolStripMenuItem_Click(object sender, EventArgs e)
{
Form2 f = new Form2();
f.ShowDialog();
}
private void saveAsToolStripMenuItem_Click(object sender, EventArgs e)
{
saveFileDialog1.DefaultExt = ".txt";
saveFileDialog1.FileName = "*.txt";
saveFileDialog1.Filter = "Text Files (*.txt)|*.txt|All Files (*.*)|*.*";
if (saveFileDialog1.ShowDialog() == DialogResult.OK)
{
string path = saveFileDialog1.FileName;
if (!File.Exists(path)) //if file does not exits
{
// Create a file to write to.
using (StreamWriter sw = File.CreateText(path))
{
for (int i = 0; i < richTextBox1.Lines.Length; i++)
{
sw.WriteLine(richTextBox1.Lines[i]);
}
}
}
else if (File.Exists(path)) //if file is exist
{
using (StreamWriter sw = File.CreateText(path))
{
for (int i = 0; i < richTextBox1.Lines.Length; i++)
{
sw.WriteLine(richTextBox1.Lines[i]);
}
}
}
}
}
private void wordWrapToolStripMenuItem_Click(object sender, EventArgs e)
{
}
private void viewHelpToolStripMenuItem_Click(object sender, EventArgs e)
{
Form2 f = new Form2();
f.ShowDialog();
}
private void selectAllToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.SelectAll();
}
}
}
Create Simple Notepad Application using C# in Visual Studio 2012
This code show how to create Notepad application using C# Dot Net in Visual Studio 2012.