image in div via codebehind

I'm trying to achieve setting my image inside my div id =test this has became extremely problematic:

    cn.Open();
    using (OdbcCommand cmd = new OdbcCommand("SELECT Wallpostings FROM WallPosting WHERE UserID=" + userId + " ORDER BY idWallPosting DESC", cn))
    {
        using (OdbcDataReader reader = cmd.ExecuteReader())
        {


            var divHtml = new System.Text.StringBuilder();
            while (reader.Read())
            {
                Image img = new Image();
                img.ImageUrl = "~/userdata/2/uploadedimage/batman-for-facebook.jpg";
                divHtml.Append("<div id=test>");
                divHtml.Append(img + String.Format("{0}", reader.GetString(0)));
                // how can I append an img inside my div id=test? 
                // the image must stay at the start of the div id=test + the contents(text) from my database (in that order)
                divHtml.Append("</div>");
            }
            test1.InnerHtml = divHtml.ToString();
        }
    }
}

}

css:

* { padding: 0; margin: 0; outline: 0; }

body {
    font-size: 12px;
    line-height: 1.2;
    font-family: Arial, "Trebuchet MS", sans-serif;
    color: #a0a0a0;
    background: url(images/bg.gif) repeat 0 0;
    text-align: left;
    }
div#test1 {
}
div#test
{
width:90%; 
z-index:1; 
padding:27.5px; 
border-top: thin solid #736F6E;
border-bottom: thin solid #736F6E;
color:#ffffff;
margin:0 auto;
white-space: pre;
white-space: pre-wrap;
white-space: pre-line;
}

Asp html:

    <asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
        <link href="css/style.css" rel="stylesheet" type="text/css" />
    </asp:Content>
    <asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder2" Runat="Server">
        <script src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.5.1.min.js" type="text/javascript"></script>
    <p>
        <asp:TextBox ID="TextBox1" name="TextBox1" runat="server" Rows="3" 
            Height="47px" Width="638px"></asp:TextBox>
    </p>
    <p>
        <asp:Button ID="Button1" runat="server" Text="Post Message" Width="98px" 
            onclick="Button1_Click" />
        </p>
    <p>
    </p>
        <div id="test1" runat="server" />
// contents from my code go inside this div as div id=test
    </asp:Content>

Firebug output:

 <div id="ctl00_ContentPlaceHolder1_ContentPlaceHolder2_test1"><div id="test">System.Web.UI.WebControls.Imageweeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee开发者_如何学Pythoneeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee</div><div id="test">System.Web.UI.WebControls.Imagehello</div><div id="test">System.Web.UI.WebControls.Imagestill trying</div><div id="test">System.Web.UI.WebControls.Imageback to front on comments</div><div id="test">System.Web.UI.WebControls.Imageback to front on comments</div><div id="test">System.Web.UI.WebControls.Imageback to front on comments</div><div id="test">System.Web.UI.WebControls.Imageback to front on comments</div><div id="test">System.Web.UI.WebControls.Imagelets try this again</div><div id="test">System.Web.UI.WebControls.Imagehair marry went up the hill</div><div id="test">System.Web.UI.WebControls.Imagewedfwedwe</div><div id="test">System.Web.UI.WebControls.Imagewedfwedwe</div><div id="test">System.Web.UI.WebControls.Imagekjgfkjh</div><div id="test">System.Web.UI.WebControls.Imageanother comment</div><div id="test">System.Web.UI.WebControls.Imagebla bla hope this works</div></div>

I know the reason why my code outputs the actual text of the web ui controls, I have had in another post code that actually gets the image up but it adds the image onto the "END" of the test div so rather than it look like this:

<div id="ctl00_ContentPlaceHolder1_ContentPlaceHolder2_test1">
<div id="test"><img src=blabla></img> the text goes after the image </div>

It looks like this:

<div id="ctl00_ContentPlaceHolder1_ContentPlaceHolder2_test1">
<div id="test"> text comes before image </div>
<img src=blabla></img>
<div id="test">hello</div>
<img src=blabla></img>

Which isn't what I want, the code I've added although I know the reasons why it outputs the web controls text is just a demonstration of "how" I'm trying to get it to work.

divTest.Append on img THEN text;

Of course I cant append I would have to use controls.add but I still couldn't get it to work.

Previous post is here so you can see some images and some ideas: My code below gives me a problem, the image comes after the text

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Image is a web control. You can't stick it in a StringBuilder.