HELP ME If Condition in a Maskedtextbox

Question

Guys, I know this site is very famous because the community is SUPER charitable and kind. Help me with this: I can’t get a Messagebox to show when I leave my Maskedtextbox blank. I formatted it to stay in the standard CPF 123.456.789-00 I’m making a registration form. I can do for normal Textbox, but for Maskedttextbox it doesn’t work. The code is like this:

if(txtNome.Text == "")
            {
                MessageBox.Show("Preencha o campo Nome!", "Falta de informação", MessageBoxButtons.OK, MessageBoxIcon.Information);
                return;
            }
            if(txtCpf.Text == "") // <- Essa é a MaskedTextBox
            {
                MessageBox.Show("Preencha o campo CPF!", "Falta de informação", MessageBoxButtons.OK, MessageBoxIcon.Information);
                return;
            }

Answer 1

There are several ways to check whether or not a Maskedtextbox is empty. Follow the code below that checks without error.

            if (maskedTextBox1.Text.Trim().Equals(string.Empty))
            {
                MessageBox.Show("Preencha o campo CPF!", "Falta de informação", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }