Question

I have a sample code snippet below which works just fine (I trimmed the query a bit for sample purposes). I want to display the data in an ASPX file but I do not want to use a repeater, datagrid or anything like that. I should mention I am not working in MVC3.

In ASP 3.0 it was possible to use a DO WHILE loop to do this, I can’t seem to get it to work in ASPX. Can someone post a code snippet that will do the job? Many thanks in advance.

    public void sqlconn2(object sender, EventArgs e)
    {
        SqlConnection cn = null;
        cn = new SqlConnection(ConfigurationManager.ConnectionStrings["sqlConn"].ToString());
        cn.Open();
        SqlCommand cmd = new SqlCommand("SELECT DISTINCT submajor.subid FROM subdetails", cn);
        myreader = cmd.ExecuteReader();
    }

    public static SqlDataReader myreader { get; set; }

Edit: If I put the code directly in the markup, it works. Obviously I do not want to do this. Here is the working sample of the markup code:

            <%
        System.Data.SqlClient.SqlConnection cn = null;
        cn = new System.Data.SqlClient.SqlConnection(ConfigurationManager.ConnectionStrings["sqlConn"].ToString());
        cn.Open();
        System.Data.SqlClient.SqlCommand cmd = new System.Data.SqlClient.SqlCommand("SELECT DISTINCT submajor.subid FROM subdetails", cn);
        myreader = cmd.ExecuteReader();
        %>
        <% 
        while (myreader.Read())
           {
               if (myreader["subid"] != null)
               {%>
                   <div><%Response.Write(myreader["subid"]);%></div>
               <%}
           }
       %>

Answer 1

You could try the code below.

in your aspx markup add a Label control

<asp:Label id="container" runat="server"/>

In your codebehind make use of your datareader at the point where you need to .

 while (myreader.Read())
           {
               if (myreader["subid"] != null)
               {
                   string str = string.Format("<div>{0}</div>",myreader["subid"]);
                   container.Controls.Add(new LiteralControl(str)); //label we added in markup
               }
       }