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c#vb.nettextboxbackground-colorforeground

Changing the forecolor and backcolor of text in a textbox

I'm making a C++ code editor application using VB.NET. I'd like to change the color of the keywords as the user types it. Also I'm looking for a way to highlight some lines of the code.

Is there a way to change the forecolor and backcolour of a piece of text inside a textbox or a rich textbox?

Solution

  • I do not really know what you want to do so here are some options.

    If you want a step by step tutorial on how to write a syntax highlighting control, you can read these articles:

    1. Syntax Highlighting in RichTextBox Part 1 and Part 2.
    2. Syntax Highlighting in RichTextBox using C#


    For a basic syntax highlighting control written in VB.NET, see this article: Color Syntax Control (VB.NET).


    There are two very good options if you want a fully-fledged syntax highlighting control. These are:

    1. ScintillaNET for WinForms and;
    2. AvalonEdit for WPF.
      • There is a tutorial on Using AvalonEdit on CodeProject so be sure to check that out as well.