Open large rich text file smoothly

[hackerspk]

Hi
If there is any way to open large rtf files in rich text text box ?
when i try to open a large rtf file in rich text box it halt the system unlike windows word pad . win word pad open file smoothly may be read line by line how it possible in vb.net?

[gep13]

Hey,

How large a file are we talking about here?

Can you show the code that you are currently using?

Gary

[hackerspk]

With OpenFileDialog1
            'Set the Filter Text to set the open file types 
            .Filter = "Urdu Files (*.urdu)|*.urdu|" & _
                               "Rich Text Files (*.rtf) |*.rtf"
 
            'Pick Text Files to begin with
            .FilterIndex = 1
 
            'The Caption of your OpenDialog
            .Title = "Choose a File To Open....."
 
            'Ensure we only get back valid filenames
            .CheckFileExists() = True
            .CheckPathExists = True
            .ValidateNames = True
            .DereferenceLinks = True
 
            'Set the starting dir
            ' .InitialDirectory = "c:\"
 
            'Show the OpenDialog
            .ShowDialog(Me)
            TextBox1.AutoWordSelection = True
            TextBox1.ScrollBars = RichTextBoxScrollBars.Vertical
            TextBox1.WordWrap = True
            If .FileName = "" Then GoTo line
            TextBox1.LoadFile(.FileName, _
                    RichTextBoxStreamType.RichText)
 End With

File Is Large Up to 5 MB

[gep13]

Hey,

I am going out on a limb here (because I have never actually done this), but I suspect you could do the work of loading the file in a BackgroundWorker:

http://msdn.microsoft.com/en-us/libr...undworker.aspx

That way, your UI will still be usable by the end user.

Gary