Google map bind on page load with db values
===

Am using the below code .but getting a blank box.

    public void GetMapDetails(int Propertyid)
    {
        DataSet dstPropMap = Tbl_PropertyMaster.GetPropertyDetailsbyId(Propertyid);
        if (dstPropMap.Tables[0].Rows.Count > 0)
        {
            lat = dstPropMap.Tables[0].Rows[0]["Latitude"].ToString();
            lon = dstPropMap.Tables[0].Rows[0]["Longitude"].ToString();
            myMap.Attributes.Add("src", "https://maps.google.co.in/?ie=UTF8&amp;t=m&amp;ll=" + lat + "," + lon + "&amp;spn=" + lat + "," + lon + "amp;z=5&amp;output=embed");
            DataBind();
        }
    }