private void btCreate_Click(object sender, EventArgs e)
{
if (tbUsrName.Text != null && tbPw.Text != null && !String.IsNullOrWhiteSpace(tbUsrName.Text) && !String.IsNullOrWhiteSpace(tbPw.Text))
{
_dbMgr.createUser(tbUsrName.Text, tbPw.Text);
Close();
}
else
{
MessageBox.Show("Invalid username or password!");
}
}
