C # Notepad implementation code

The editing module only implements the full selection and time 2 functions, the automatic line wrapping function has not written.

If you need all the source, please leave a message or send an email to henanlinzhoulcl@163.com

Version: 1.0

The main code is as follows:

using System;


using System.Collections.Generic;


using System.ComponentModel;


using System.Data;


using System.Drawing;


using System.Text;


using System.Windows.Forms;


using System.IO;





namespace Mynotepad


{


public partial class Mynotepad:form


{


public Mynotepad ()


{


InitializeComponent ();


This.toolStripStatusLabel3.Text = DateTime.Now.DayOfWeek.ToString ();


}





private void Textbox1_keypress (object sender, KeyPressEventArgs e)


{


//textbox1.text + = E.keychar;


}





private void Exits Toolstripmenuitem_click (object sender, EventArgs e)


{


Application.exit ();


}





private void Date Toolstripmenuitem_click (object sender, EventArgs e)


{


if (this.textBox1.SelectedText!= "")


{


This.textBox1.SelectedText = DateTime.Now.ToString ();


}


Else


{


This.textBox1.Text + = DateTime.Now;


}


}





private void Timer1_Tick (object sender, EventArgs e)


{


This.toolStripStatusLabel1.Text = "Now time is:" + DateTime.Now.ToString ();


}





private void status bar Toolstripmenuitem_click (object sender, EventArgs e)


{


if (this.statusStrip1.Visible = = False)


{


this.statusStrip1.Visible = true;


}


Else


{


this.statusStrip1.Visible = false;


This.textBox1.Height + + 10;


}


}





private void about Mynotepadatoolstripmenuitem_click (object sender, EventArgs e)


{


about AB = new about ();


AB. Show ();


}





private void Full selection Toolstripmenuitem_click (object sender, EventArgs e)


{


This.textBox1.SelectAll ();


}





private void Font Toolstripmenuitem_click (object sender, EventArgs e)


{


if (fontdialog1.showdialog () = = DialogResult.OK)


{


Textbox1.font = Fontdialog1.font;


}


}





private void Mynotepad_resize (object sender, EventArgs e)


{


This.panel1.Width = this. size.width-25;


This.panel1.Height = this. size.height-50;


this.textBox1.Width = this.panel1.Width;


this.textBox1.Height = this.panel1.Height;


}





private void Automatic wrapping Toolstripmenuitem_click (object sender, EventArgs e)


{





}





private void Save Toolstripmenuitem_click (object sender, EventArgs e)


{


using (SaveFileDialog Savedig = new SaveFileDialog ())


{


Savedig.filter = @ "text document (*.txt) |*.txt";


savedig.filename = "*.txt";


if (savedig.showdialog () = = DialogResult.OK)


{


StreamWriter sw = new StreamWriter (Savedig.filename, False, System.Text.Encoding.Default);


SW. Write (This.textBox1.Text);


SW. Close ();


this. Text = Savedig.filename;


}


}


}





private void is saved as Toolstripmenuitem_click (object sender, EventArgs e)


{


using (SaveFileDialog Savedig = new SaveFileDialog ())


{


Savedig.filter = @ "text document (*.txt) |*.txt";


Savedig.filename = this. Text;


if (savedig.showdialog () = = DialogResult.OK)


{


StreamWriter sw = new StreamWriter (Savedig.filename, False, System.Text.Encoding.Default);


SW. Write (This.textBox1.Text);


SW. Close ();


}


}


}





private void new Toolstripmenuitem_click (object sender, EventArgs e)


{


if (this.textBox1.Text!= "")


{

DialogResult d = MessageBox.Show ("file" + this. Text + @ "has changed.

Do you want to save the file? "," Mynotepad, Messageboxbuttons.yesnocancel, MessageBoxIcon.Information, Messageboxdefaultbutton.button1, MESSAGEBOXOPTIONS.DEFAULTDESKTOPONLY);

switch (d)
{
case DialogResult.Yes:
using (SaveFileDialog saveDig = new SaveFileDialog())
{
saveDig.Filter = @"文本文档(*.txt)|*.txt";
saveDig.FileName = "*.txt";
if (saveDig.ShowDialog() == DialogResult.OK)
{
StreamWriter sw = new StreamWriter(saveDig.FileName, false, System.Text.Encoding.Default);
sw.Write(this.textBox1.Text);
sw.Close();
this.Text = saveDig.FileName;
}
}
break;
case DialogResult.No:
this.textBox1.Text = "";
break;
case DialogResult.Cancel:
break;

default: System.Diagnostics.Debug.Assert(false);
break;

}

}
}

private void 打开ToolStripMenuItem_Click(object sender, EventArgs e)
{
if (this.textBox1.Text != "")
{

DialogResult d = MessageBox.Show ("file" + this. Text + @ "has changed.

Do you want to save the file? "," Mynotepad, Messageboxbuttons.yesnocancel, MessageBoxIcon.Information, Messageboxdefaultbutton.button1, MESSAGEBOXOPTIONS.DEFAULTDESKTOPONLY);

switch (d)
{
Case dialogresult.yes:
using (SaveFileDialog Savedig = new SaveFileDialog ())
{
S Avedig.filter = @ "text document (*.txt) |*.txt";
Savedig.filename = "*.txt";
if (savedig.showdialog () = DialogResult.OK)
{
StreamWriter sw = new StreamWriter (Savedig.filename, False, Sy Stem. Text.Encoding.Default);
SW. Write (This.textBox1.Text);
SW. Close ();
this. Text = Savedig.filename;
}

break;
Case dialogresult.no:
This.textBox1.Text = ";
Break
Case DialogResult.Cancel:
break;

Default:System.Diagnostics.Debug.Assert (FALSE);
break;

}
}
Else
{
using (OpenFileDialog dlgtext = new OpenFileDialog ())
{
Dlgtext.filter = @ "(* . txt) |*.txt ";
if (dlgtext.showdialog () = DialogResult.OK)
{
if (file.exists (dlgtext.filename))
{
StreamReader Rstream = new StreamReader (Dlgtext.filename, System.Text.Encoding.Default);
String S=default (String);
This.textbox1. Text = "";
while ((s = rstream.readline ())!= null)
{
This.textBox1.Text = = s;
}
Rstream.close ();
}

}
}
}

private void Mynotepad_formclosing (object sender, FormClosingEventArgs e)
{
if (This.textBox1.Text!= "")
{

DialogResult d = MessageBox.Show ("file" + this. Text + @ "has changed.

Do you want to save the file? "," Mynotepad, Messageboxbuttons.yesnocancel, MessageBoxIcon.Information, Messageboxdefaultbutton.button1, MESSAGEBOXOPTIONS.DEFAULTDESKTOPONLY);

switch (d)
{
case DialogResult.Yes:
using (SaveFileDialog saveDig = new SaveFileDialog())
{
saveDig.Filter = @"文本文档(*.txt)|*.txt";
saveDig.FileName = "*.txt";
if (saveDig.ShowDialog() == DialogResult.OK)
{
StreamWriter sw = new StreamWriter(saveDig.FileName, false, System.Text.Encoding.Default);
sw.Write(this.textBox1.Text);
sw.Close();
this.Text = saveDig.FileName;
}
}
break;
case DialogResult.No:
break;
case DialogResult.Cancel:
break;

default: System.Diagnostics.Debug.Assert(false);
break;

}
}
}

}
}

Other code can be omitted.