private void LoginButton_Click(object sender, EventArgs e)
{
//check username and password is empty or not
if (string.IsNullOrEmpty(UserNameTextBox.Text) || string.IsNullOrEmpty(PasswordTextBox.Text))
{
if (string.IsNullOrEmpty(UserNameTextBox.Text))
{
UserNameTextBox.Focus();
errorProvider1.SetError(UserNameTextBox, "Please enter username");
}//end of string.IsNullOrEmpty(UserNameTextBox.Text))
else
{
PasswordTextBox.Focus();
errorProvider1.SetError(PasswordTextBox, "Please enter password");
}////end of settinng password text box error
}
else
{
LoginDal logInDataAccess = new LoginDal(); // created an object to invoke the login data access connection in the DAL.
Login _loginDetails = new Login
{
UserName = UserNameTextBox.Text,
PassWord = PasswordTextBox.Text
};
int recordsCount = logInDataAccess.GetuserDetails(_loginDetails); //this statement acts multipurpose 1)recordsCount acts as variable for checking number of rows retrived 2) for validating the entered user details
if (recordsCount > 0) // when the username and password matches one row will be retrived from the database so count is > 0
{
this.Hide();
AdminMenuForm menuFm = new AdminMenuForm();
menuFm.Closed += (s, args) => this.Close(); // if username and password matches by using delegate property the current form will be hidden and admin menu form is shown.
menuFm.Show();
}
else
{
ErrorMessagelabel.Visible = true;
//MessageBox.Show("Please enter Correct Username and Password");
// errorProvider1.SetError(UserNameTextBox, "User Name is Invaldi");
}
}
}
