protected void LnkBtnUserLogin_Click(object sender, EventArgs e)
{
string username = txtUserID.Text;
string password = txtUserPassword.Text;
//check if txtUserID and txtUserPassword is blank/null
if (string.IsNullOrWhiteSpace(username) && string.IsNullOrWhiteSpace(password))
{
loginWarningLabel.Text = "Please Provide a User Name and Password";
}
else if (string.IsNullOrWhiteSpace(username) && !string.IsNullOrWhiteSpace(password))
{
loginWarningLabel.Text = "Please Provide a User Name";
}
else if (!string.IsNullOrWhiteSpace(username) && string.IsNullOrWhiteSpace(password))
{
loginWarningLabel.Text = "Please Provide a Password";
}
// validate the provided credentials
bool isUserVerified = DataLayer.ValidateUser(username, password);
if (isUserVerified)
{
// log user in if user is verified
DataLayer.UserLogin(username, password);
Session["sessionUserID"] = username;
Response.Redirect("~/frmDashboard.aspx");
}
else
{
// handle the case where the login credentials do not match what's in database
loginWarningLabel.Text = "Incorrect Login Credentials, try again";
}
}
