[InvalidOperationException: Sequence contains no matching element]
System.Linq.Enumerable.First(IEnumerable`1 source, Func`2 predicate) +381
product.Render() in d:\website\idteck_www\products.aspx.cs:83
product.OnBeforePostBack() in d:\website\idteck_www\products.aspx.cs:49
FrontBasePage.Page_Load(Object sender, EventArgs e) in d:\website\idteck_www\App_Code\FrontBasePage.cs:96
System.Web.UI.Control.OnLoad(EventArgs e) +106
System.Web.UI.Control.LoadRecursive() +68
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3785
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