C# How do I fix this error error with my MessageBoxButtons/Icons

Question

Designing a registration form, and I get this error when adding in MessageBoxButtons and MessageBoxIcon. The error is "argument 2: cannot convert 'system.windows.forms.Messageboxicon' to 'string'. The piece of code where the error is, is this: **

MessageBox.Show("You have successfully registered your account", MessageBoxIcon.Exclamation, MessageBoxButtons.OK);

** As well as here:

MessageBox.Show("Please fill in all of the boxes correctly", MessageBoxIcon.Exclamation, MessageBoxButtons.OK);

When I remove the Messageboxbutton/icon, there is no error. Here is what I have got:

        {
        MyConnections.insert.CommandText = "INSERT Customer(EmailAddress,Firstname,Surname,Password)VALUES('" + txtEmail.Text + "','" + txtFirst.Text + "','" + txtSur.Text + "','" + txtPassword.Text + "')";
        MyConnections.insert.Connection = MyConnections.Customer;
        MyConnections.Customer.Open();
        MyConnections.insert.ExecuteNonQuery();
        MyConnections.Customer.Close();

        if (txtFirst.Text.Length > 0 && txtSur.Text.Length > 0 && txtEmail.Text.Length > 0 && txtPassword.Text.Length > 0 && txtConfirmPass.Text.Length > 0)


        {
            MessageBox.Show("You have successfully registered your account", MessageBoxIcon.Exclamation, MessageBoxButtons.OK);


        }

        else
        {
            MessageBox.Show("Please fill in all of the boxes correctly", MessageBoxIcon.Exclamation, MessageBoxButtons.OK);


        }

Answer 1

Here you did have the right order and you forgot to add a caption

MessageBox.Show("You have successfully registered your account","Your caption goes here", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);

Hope this helps.