Overview:
In this article I would like to Demonstrate about a NotePad Application.
Description:
This is application can be developed using the concept of
- MenuStrip
- Dialog Boxes
- Dialog Result
For this application first take following tools:
menustrip1,savefiledialog1,openfiledialog1,statustrip1
Dont Confuse with events and methods itself.......events succedded Example:cutToolStripMenuItem_Click(object sender, EventArgs e)
Program:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace Notepad
{
public partial class Form1 : Form
{
public SaveFileDialog
sfd;
public OpenFileDialog
ofd;
public int index;
string fname = null;
//bool modified = false;
public Form1()
{
sfd = new SaveFileDialog();
ofd = new OpenFileDialog();
InitializeComponent();
}
private void
pasteToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Paste();
}
private void
timeDateToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Text += Convert.ToString(DateTime.Now);
}
private void
viewToolStripMenuItem1_Click(object sender, EventArgs e)
{
}
private void
openfile()
{
openFileDialog1.ShowDialog();
fname = openFileDialog1.FileName;
richTextBox1.SaveFile(fname, RichTextBoxStreamType.PlainText);
this.Text = fname;
modified = false;
}
private void
savefile()
{
DialogResult d =
saveFileDialog1.ShowDialog();
if (d != DialogResult.Cancel)
{
fname = saveFileDialog1.FileName;
richTextBox1.SaveFile(fname, RichTextBoxStreamType.PlainText);
}
}
private void
newToolStripMenuItem_Click(object sender, EventArgs e)
{
if (richTextBox1.Text.Trim().Length >
0)
{
DialogResult dr = MessageBox.Show("the
text in the untitled file has changed.\\n do u want to save the changes?",
"Notepad", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question);
if (dr.Equals(DialogResult.Yes))
{
savefile();
richTextBox1.Clear();
}
else if
(dr.Equals(DialogResult.No))
{
richTextBox1.Clear();
}
}
}
private void
saveToolStripMenuItem_Click(object sender, EventArgs e)
{
savefile();
}
private void
openToolStripMenuItem_Click(object sender, EventArgs e)
{
if (richTextBox1.Modified == true)//checking either
richtext box have entered value or not
{
DialogResult dr = MessageBox.Show("Do
you want to save changes to the opened file", "unsaved document", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if
(dr == DialogResult.No)
{
richTextBox1.Modified = false;
openfile();
}
else
{
if
(this.Text == "Untitled-Digital
Diary")
{
savefile();
openfile();
}
else
{
DialogResult dr1 = MessageBox.Show("the text in the file has been changed.Do you want
to save the changes", "Open",
MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (dr1 == DialogResult.Yes)
{
richTextBox1.SaveFile(this.Text);
openfile();
}
else
{
openfile();
}
}
}
}
else
{
openfile();
}
}
private void
exitToolStripMenuItem_Click(object sender, EventArgs e)
{
this.Close();
}
private void
saveAsToolStripMenuItem_Click(object sender, EventArgs e)
{
sfd.Title = "Save As";
sfd.Filter = "Text Document|*.txt";
sfd.DefaultExt = "txt";
sfd.ShowDialog();
this.Text = sfd.FileName;
}
private void
cutToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Cut();
}
private void
copyToolStripMenuItem_Click(object sender, EventArgs e)
{
richTextBox1.Copy();
}
private void
undoToolStripMenuItem_Click(object sender, EventArgs e)
{
if (richTextBox1.CanUndo)
{
richTextBox1.Undo();
}
}
private void
redoToolStripMenuItem_Click(object sender, EventArgs e)
{
statusStrip1.Text = "used to redo last
changed text";
if (richTextBox1.CanRedo)
{
richTextBox1.Redo();
}
}
private void
statusStrip2_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
{
}
private void
fontToolStripMenuItem_Click(object sender, EventArgs e)
{
FontDialog fd = new FontDialog();
fd.Font = richTextBox1.SelectionFont;
fd.Color = richTextBox1.SelectionColor;
if (fd.ShowDialog() == DialogResult.OK)
{
richTextBox1.SelectionFont = fd.Font;
richTextBox1.SelectionColor = fd.Color;
}
}
private void wordwrapToolStripMenuItem_Click(object sender, EventArgs
e)
{
if (wordwrapToolStripMenuItem.Checked ==
false)
{
wordwrapToolStripMenuItem.Checked= true;
richTextBox1.WordWrap = true;
}
else
{
wordwrapToolStripMenuItem.Checked = false;
richTextBox1.WordWrap = false;
}
}
private void
bGcolorToolStripMenuItem_Click(object sender, EventArgs e)
{
ColorDialog cr = new ColorDialog();
if (cr.ShowDialog() == DialogResult.OK)
{
richTextBox1.BackColor = cr.Color;
}
}
}
}
OutPut:
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