C # notepad V1.0

The editing module only supports the full selection and time functions, and the automatic line feed function is not yet written.

If you need all source code, please leave a message or mail 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 exit 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 timereffectick (Object sender, eventargs E)
{
This. toolstripstatuslabel1.text = "the current 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 select all 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 line feed 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 Save 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 create toolstripmenuitem_click (Object sender, eventargs E)
{
If (this. textbox1.text! = "")
{
Dialogresult d = MessageBox. Show (the text of "file" + this. Text + @ "has changed.
Do you want to save the file? "," Mynotepad ", messageboxbuttons. yesnocancel, messageboxicon. Information, messageboxdefaultbutton. button1, messageboxoptions. defaulttoptoponly );
Switch (d)
{
Case dialogresult. Yes:
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;
}
}
Break;
Case dialogresult. No:
This. textbox1.text = "";
Break;
Case dialogresult. Cancel:
Break;
 
Default: system. Diagnostics. Debug. Assert (false );
Break;
 
}

}
}
 
Private void open toolstripmenuitem_click (Object sender, eventargs E)
{
If (this. textbox1.text! = "")
{
Dialogresult d = MessageBox. Show (the text of "file" + this. Text + @ "has changed.
Do you want to save the file? "," Mynotepad ", messageboxbuttons. yesnocancel, messageboxicon. Information, messageboxdefaultbutton. button1, messageboxoptions. defaulttoptoponly );
Switch (d)
{
Case dialogresult. Yes:
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;
}
}
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 (the text of "file" + this. Text + @ "has changed.
Do you want to save the file? "," Mynotepad ", messageboxbuttons. yesnocancel, messageboxicon. Information, messageboxdefaultbutton. button1, messageboxoptions. defaulttoptoponly );
Switch (d)
{
Case dialogresult. Yes:
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;
}
}
Break;
Case dialogresult. No:
Break;
Case dialogresult. Cancel:
Break;
 
Default: system. Diagnostics. Debug. Assert (false );
Break;
 
}
}
}
 
}
}

 

Other code can be omitted...