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Data not binding to dropdown list

Member 9378829 asked:

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private void load_uname()

        SqlConnection con = new SqlConnection(constring);
        string sql = "select [uname] from user_registration where usergroup ='" + usertype.SelectedValue.ToString() + "' ";
        SqlCommand cmd = new SqlCommand(sql, con);
        SqlDataReader dr;
        dr = cmd.ExecuteReader();
        while (dr.Read())

            username.Items.Add(new ListItem(dr[0].ToString()));

this is my code which is not working if i put my query statically like this "select [uname] from user_registration where usergroup ='owners'", it's working but if i tried dynamically like above query in the code not fetching the data!!
Tags: C#, .NET (.NET3.5), SQL-Server (SQL-Server-2008)


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