Hide Image Control if Image Path does not exist in database in ASP.Net

Hi

I have div In my page that in this div I put image control

<div id="DLogos">
          <asp:Image ID="imglogo" runat="server" CssClass="ILogos" /> </div>

according to below code

<div id="Dart1_I1" visible='<%# !string.IsNullOrEmpty(Eval("image1").ToString())%>'>

If in database was image it show div and if there wasn't any image it didn't show div but above code is for div that I put in datalist now I want do some thing like that for Div that I don't put it in datalist I should write code for that in behindecode page but I don't know How I can do it? behind code

SqlCommand _cmd = new SqlCommand("storeinfo1", _cn);
     _cmd.CommandType = CommandType.StoredProcedure;
     _cmd.Parameters.AddWithValue("@behcode", data);
     _cn.Open();
     SqlDataReader _dr = _cmd.ExecuteReader();
     while (_dr.Read())
     {
 
         this.Page.Header.Controls.Add(htmlmeta);
         Lblbehcode.Text = _dr["name"].ToString();
         Image1.ImageUrl = "~/image/behcode/" + _dr["Image_Behcode"].ToString();
         lbldescription.Text = _dr["Service"].ToString();
         lbladdress.Text = _dr["address"].ToString();
         lbltell.Text = _dr["tell"].ToString();
     }