Question

I have this code written in .NET 4.0 using VS2010 Ultimate Beta 2:

smtpClient.Send(mailMsg);

smtpClient is a reference to SmtpClient (I have the relevant references added), and likewise for mailMsg (is MailMessage) – there are no errors stating anything like check for missing assemblies.

However, I keep getting an error saying that I have the incorrect no of overloads, when SmtpClient takes either a MailMessage object or the To address, From address, Subject, etc.

Why doesn’t this code work? Totally confused.

Thanks

Answer 1

There are two different MailMessage classes : System.Net.Mail.MailMessage, and System.Web.Mail.MailMessage. The one in the System.Web.Mail namespace is obsolete, and is not compatible with SmtpClient. Make sure you’re using the correct class, perhaps you have a using System.Web.Mail clause in your code