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  SqlCommand cmd = new SqlCommand("select * from user_login where groupid=1", cnn);
            SqlDataAdapter da = new SqlDataAdapter(cmd);
            DataSet ds = new DataSet();
            da.Fill(ds);


            ddlstudentname.DataTextField="name";
            ddlstudentname.DataBind();


i have to fill dropdown list with name ( name comming from query).but this coding not working.Not give error.what is problem.
Posted 9-Jan-13 0:55am
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Solution 1

Hi,

your not assign the DataSet to your DropDownList.

Please try this



  SqlCommand cmd = new SqlCommand("select * from user_login where groupid=1", cnn);
            SqlDataAdapter da = new SqlDataAdapter(cmd);
            DataSet ds = new DataSet();
            da.Fill(ds);
            ddlstudentname.DataSource=ds;
            ddlstudentname.DataTextField="name";
            ddlstudentname.DataVlaueField="name";
            ddlstudentname.DataBind();

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v2
Comments
Member 9511889 11-Jan-13 2:11am
   
how to add new item in dropdown using query?
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Solution 2

See Below code.
Bold Case is newly added line.
    SqlCommand cmd = new SqlCommand("select * from user_login where groupid=1", cnn);
    SqlDataAdapter da = new SqlDataAdapter(cmd);
    DataSet ds = new DataSet();
    da.Fill(ds);
    
    ddlstudentname.DataSource=ds;
    ddlstudentname.DataVlaueField="name";
    ddlstudentname.DataTextField="name";

    ddlstudentname.DataBind();
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