Messagebox and Custom Class Library

Hi,

I am writing a custom control to accept date values only.

I wish to display an error message if an incorrect date is entered, however when I use the Messagebox.Show() command the dll will not compile.

The error message is "Name 'Messagebox' is not declared."

Either this is not possible, or I have to import a system reference of some kind into my project.

Can someone assist?

You have to set a reference to the System.Windows.Forms assembly.

Hi,

I had already done what you suggested when I started the project.

Project ->Add Reference -> .Net Tab

System.Windows.Forms.dll

Is his correct/what you mean?

Yes, you may also want to import the namespace to alleviate having to use the fully qualified name when referencing types in the namespace.

ahh, thats better!.

Thanks!