//sign up
private void SignUpClick(object sender, RoutedEventArgs e)
{
SignUpWindow signUpWindow = new SignUpWindow();
signUpWindow.Show();
this.Close();
}
private void btnSignUp_Click(object sender, EventArgs e)
{
SignUpWindow newWindow = new SignUpWindow(this);
newWindow.StartPosition = FormStartPosition.Manual;
newWindow.Location = new Point(this.Location.X, this.Location.Y);
newWindow.Show();
this.Hide();
}
