private void AddEmpB_Click(object sender, EventArgs e)
        {
            businesslayer bl = new businesslayer();

            if (EmpSSN.Text.Equals("") || EmpName.Text.Equals("") || EmpName.Text.Equals("") || EmpUsername.Text.Equals("") || EmpPassword.Text.Equals("") || EmpEmail.Text.Equals(""))
            {
                MessageBox.Show("Please,Fill the inputs");
            }
            else
            {
                Regex regex = new Regex(@"^([\w\.\-]+)@([\w\-]+)((\.(\w){2,3})+)$");
                Match match = regex.Match(EmpEmail.Text);
                if (match.Success)
                {
                    bl.InsertEmp(EmpSSN.Text, EmpName.Text, EmpName.Text, EmpUsername.Text, EmpPassword.Text, EmpEmail.Text);
                }
                else
                {
                    MessageBox.Show(EmpEmail.Text + " is incorrect");
                }
            }
        }