notepad c#

[tintincute]

Hi

I'm new to programming and I'm starting to create a simple notepad, with only 4 buttons (Open, Save, New and Font).

If I open or save I'm getting an error:
This is my code:

//Declare save as a new SaveFileDailog
            SaveFileDialog save = new SaveFileDialog();
            //Declare filename as a String equal to the SaveFileDialog's FileName
            String filename = save.FileName;
            //Declare filter as a String equal to our wanted SaveFileDialog Filter
            String filter = "Text Files|*.txt|All Files|*.*";
            //Set the SaveFileDialog's Filter to filter
            save.Filter = filter;
            //Set the title of the SaveFileDialog to Save
            save.Title = "Save";
            //Show the SaveFileDialog
            if (save.ShowDialog(this) == DialogResult.OK)
            {
                //Write all of the text in txtBox to the specified file
                System.IO.File.WriteAllText(filename, textBox1.Text);
            }
            else
            {
                //Return
                return;
            }

Any idea?

Thanks for your help in advance

Regards

[ddanbe]

It would be greatly appreciated, that in the case you have an error you would tell us WHAT error you are experiencing!
The only thing I can come up with(after a long look at your code) is that filename is empty when you call System.IO.File.WriteAllText, perhaps use save.FileName here?

[tintincute]

oopsss sorry about that i'm supposed to attached the jpg file for the error.
But I don't know what happened. it just didn't attach my file
The error I'm getting was:
"ArgumentException was unhandled" and the code line:
"System.IO.File.WriteAllText(filename, textBox1.Text);" was highlighted

thanks

[ddanbe]

Did you read the rest of the error message?
Most of the time you get invaluable information about what went wrong.
I tested your code with filename empty I got :
"ArgumentException was unhandled" but also: Empty path name is not legal.
Debug your code to see what happens! Set a breakpoint before the call to WriteAllText.

[tintincute]

ok thanks I'll try that.