A Simple Notepad In C#

This guide wont teach you to code some awesome notepad but just a simple one..Im going to try to keep the code as simple as possible.

Aite, your gonna need to open a new C# project by opening Microsoft Visual C#, then goto 

File>New>Windows Form Application

Name the project Notepad or whatever you want.

Add the following items. (Menu Strip, openFileDialog, saveFileDialog, Text Box)




Now set the textBox's dock to fill, then rename it to txtMain.



Then click one time on your textBox, you should see a small play arrow, click it and check "Multiline". 



You should now have something that looks like this.



Now right click on a blank part of the menu strip, and press "Insert Standard Items"



You should have a bunch of basic functions by now, but its not that easy =P, they all dont have code. 

But start off by deleting "Tools" and "Help". 

Now in your form editor click on the "File" button, then double click on "New", which should bring you to the code editor, then write the code

txtMain.Clear();

Then goto "Open"'s code, and add this code

//Shows the openFileDialog
openFileDialog1.ShowDialog();
//Reads the text file
System.IO.StreamReader OpenFile = new System.IO.StreamReader(openFileDialog1.FileName);
//Displays the text file in the textBox
txtMain.Text = OpenFile.ReadToEnd();
//Closes the proccess
OpenFile.Close();

Now proceed to "Save"'s code, and add this code

//Determines the text file to save to
System.IO.StreamWriter SaveFile = new System.IO.StreamWriter(openFileDialog1.FileName);
//Writes the text to the file
SaveFile.WriteLine(txtMain.Text);
//Closes the proccess
SaveFile.Close();

Then for "Save as"'s code, add

//Open the saveFileDialog
saveFileDialog1.ShowDialog();
//Determines the text file to save to
System.IO.StreamWriter SaveFile = new System.IO.StreamWriter(saveFileDialog1.FileName);
//Writes the text to the file
SaveFile.WriteLine(txtMain.Text);
//Closes the proccess
SaveFile.Close();

"Print"'s code is

//Declare prntDoc as a new PrintDocument
System.Drawing.Printing.PrintDocument prntDoc = new System.Drawing.Printing.PrintDocument();

"Print Preview" is

//Declare preview as a new PrintPreviewDialog
PrintPreviewDialog preview = new PrintPreviewDialog();
//Declare prntDoc_PrintPage as a new EventHandler for prntDoc's Print Page
prntDoc.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(prntDoc_PrintPage);
//Set the PrintPreview's Document equal to prntDoc
preview.Document = prntDoc;
//Show the PrintPreview Dialog
if (preview.ShowDialog(this) == DialogResult.OK)
{
//Generate the PrintPreview
prntDoc.Print();
}

"Exit"'s code is

Application.Exit();

Move on to "Undo"'s code, add

txtMain.Undo();

For "Redo"'s code its

txtMain.Undo();

Add this to "Cut"'s code

txtMain.Cut();

For "Copy" add

txtMain.Copy();

"Paste"'s code is

txtMain.Paste();

For "Select All" its

txtMain.SelectAll();

Ur done with most of the code, but our Notepad still lacks one function - Word Wrap!!

Quote from Xav:

Xav said:

I disagree with the last bit (the word wrap). It would be much better to use a single checked box to wrap text.

To achieve this, set the menu item's Checkonclick boolean property to True, and then use the following code in the Click event:

txtMain.WordWrap = wordWrapMenuStripItem.Checked

Well thats it =)



Hope you enjoyed this guide. If you need anymore screenies tell me lol, i'll add em