ASP.NET - Alert Username wrong and Password Wrong According field

Hi,

I need a requirement for login page validation. If user enter wrong username needs to alert as username wrong and if user enters password as wrong needs to alert as password wrong.  If both wrong needs to alert as Username and Password wrong?

Code Like this:

protected void Button1_Click(object sender, EventArgs e)
        {


            GetProjectDetails objbal = new GetProjectDetails();
            UserDetails[] UserDetails = null;
            UserDetails = objbal.LoginDetails(txtUsername.Text, txtPassword.Text);
            if (UserDetails == null)
            {


                lblResult.Text = "Login Not Sucess";
            }
            else
            {
                Session["UserDetails"] = UserDetails;
                lblResult.Text = "Login Sucess";
                Response.Redirect("DashBoardDSR.aspx");
            }
}

Screenshot is as follows:

Change your code like this-

protected void Button1_Click(object sender, EventArgs e)
        {


            GetProjectDetails objbal = new GetProjectDetails();
            UserDetails[] UserDetails = null;
            UserDetails = objbal.LoginDetails(txtUsername.Text, txtPassword.Text);
            if (UserDetails == null)
            {

          Response.Write("<script>alert('Login Not Sucess')</script>");
                lblResult.Text = "Login Not Sucess";
            }
            else
            {
                Session["UserDetails"] = UserDetails;
          Response.Write("<script>alert('Login Sucess')</script>");
                lblResult.Text = "Login Sucess";
                Response.Redirect("DashBoardDSR.aspx");
            }
}

You can simple write or call javascript in your code like below.. see the bold part..

 GetProjectDetails objbal = new GetProjectDetails();
            UserDetails[] UserDetails = null;
            UserDetails = objbal.LoginDetails(txtUsername.Text, txtPassword.Text);
            if (UserDetails == null)
            {


                //lblResult.Text = "Login Not Sucess";
          Response.Write("<script> alert('Invalid User Name/Password') </script>");
      }
            else
            {
                Session["UserDetails"] = UserDetails;
                lblResult.Text = "Login Sucess";
                Response.Redirect("DashBoardDSR.aspx");
            }

Actually I need if the username wrong needs to display only username wrong?  and If the password wrong Needs to Display only Password Wrong?

Actually I need if the username wrong needs to display only username wrong?  and If the password wrong Needs to Display only Password Wrong?

Actually I need if the username wrong needs to display only username wrong?  and If the password wrong Needs to Display only Password Wrong?

Then you first need to checke the "User Name" in your database.

If entered user name found in database then only check for the password. If entered user name is not found in database then write those "Response" stattement with message "UserName not found".

let me know if any thing else you require..