c# .net error message box code example
Example 1: c# error messagebox
MessageBox.Show("your message",
"window title",
MessageBoxButtons.OK,
MessageBoxIcon.Warning // for Warning
//MessageBoxIcon.Error // for Error
//MessageBoxIcon.Information // for Information
//MessageBoxIcon.Question // for Question
);
Example 2: how to do a messagebox in c#
MessageBox.Show("Content", "Title", MessageBoxIcon.Error)