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BOOK: Beginning ASP.NET 2.0 and Databases
This is the forum to discuss the Wrox book Beginning ASP.NET 2.0 and Databases by John Kauffman, Bradley Millington; ISBN: 9780471781349
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Old December 27th, 2009, 02:19 PM
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Red face Moving to Next Record Help Required

Hi,

I am developing a website which has feature for online exam. I have 4 radio buttons for 4 options, 1 label for question and next and previous button. When the page is loaded it display the question and 4 answers. When I click on next or previous buttons. How to move to next or previous record in database with datareader or datatable till the last record. I am pasting the code below. It is in ASP.net with C# and SQL Server 2005 Please help me
Code:
public partial class Exam : System.Web.UI.Page
{
  
    SqlConnection con = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\RiTech.mdf;Integrated Security=True;User Instance=True");


    public DataTable getData()
    {
        con.Open();
        SqlCommand cmd = new SqlCommand("Select * from Exam",con);
        SqlDataAdapter da = new SqlDataAdapter(cmd);
        DataTable dt = new DataTable();
        da.Fill(dt);
        con.Close();
        return dt;
    }
    protected void Page_Load(object sender, EventArgs e)
    {
        DataTable dt = getData();
        lblQuestion.Text = dt.Rows[0]["Question"].ToString();
        int count = 0;
        Session ["dt"]=dt;
        Session["count"] = count;
    }
    protected void btnNext_Click(object sender, EventArgs e)
    {
        
        if (Session["dt"] != null)
        {
            DataTable dt = (DataTable)Session["dt"];
            int count = (int)Session["count"];
            count = count + 1;
            lblQuestion.Text = dt.Rows[count]["Question"].ToString();  

        }
          
    }
}

Last edited by ritesh7; December 27th, 2009 at 02:25 PM. Reason: code
 


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