I Got Error in Login Page

Question

1.00/5 (1 vote)

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SQL-server-2000

, +

SqlConnection con = new SqlConnection("conDb");
        con.Open();
        //Look at the login table for login credentials.
        SqlCommand cmd = new SqlCommand("Select * from Login where Username=? and Password=?", con);

        cmd.Parameters.Add("@username", SqlDbType.VarChar);
        cmd.Parameters["@username"].Value = this.TextBox1.Text;

        cmd.Parameters.Add("@password", SqlDbType.VarChar);
        cmd.Parameters["@password"].Value = this.TextBox2.Text;

        SqlDataReader dr = null;

        dr = cmd.ExecuteReader();

        if (dr.HasRows)
        {
            Response.Redirect("Default.aspx?username=" + this.TextBox1.Text);

        }

I gor error in dr = cmd.ExecuteReader();

thanks for valuable replay

con.Close();

Posted 18-Nov-11 16:29pm

2011999

Updated 18-Nov-11 16:40pm

Not Active

v2

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Comments

[no name] 18-Nov-11 22:41pm

1) FORMAT your code snippets when posting

2) What is the error?

sriman.ch 18-Nov-11 22:46pm

Whats the error you got ? What we have to understand from this?
I think there is some issue with your connection string
conDB

Please be more specific

2 solutions

Solution 1

You may not get exact solution for your problem if you do not provide enough information.

Your connection string seems to be incorrect. Refer below link for proper syntax.

http://www.connectionstrings.com/sql-server

Posted 18-Nov-11 20:11pm

RaisKazi

Comments

2011999 19-Nov-11 2:31am

I got Error Message "SqlException was unhandled by user code" "Incorrect Syntax Error Near?" dr = cmd.ExecuteReader();

RaisKazi 19-Nov-11 2:38am

1) Check your connection string(Refer to the link). If conDb is your string variable then try by changing it as below.
SqlConnection con = new SqlConnection(conDb);

2) Check syntax of your parameterized sql query. Try by changing it as below.
SqlCommand cmd = new SqlCommand("Select * from Login where Username=@username and Password=@password", con);

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Prince Antony G · Accepted Answer · 2011-11-18T20:32:00

Change Your COde

C#

SqlConnection con = new SqlConnection(conDb);
       con.Open();
       //Look at the login table for login credentials.
       SqlCommand cmd = new SqlCommand("Select * from Login where Username=@username and Password=@password", con);

       cmd.Parameters.Add("@username", SqlDbType.VarChar);
       cmd.Parameters["@username"].Value = this.TextBox1.Text;

       cmd.Parameters.Add("@password", SqlDbType.VarChar);
       cmd.Parameters["@password"].Value = this.TextBox2.Text;

       SqlDataReader dr = null;

       dr = cmd.ExecuteReader();

       if (dr.HasRows)
       {
           Response.Redirect("Default.aspx?username=" + this.TextBox1.Text);

       }