at System.String.InternalSubStringWithChecks(Int32 startIndex, Int32 length, Boolean fAlwaysCopy) at System.String.Substring(Int32 startIndex, Int32 length) at SS.Utility.IDHandler.GetPrivateID(String publicID) in C:\sandroot\RnD\TagoreOnline\Portal\SS.Utility\IDHandler.cs:line 13 at Render_ShowContent.Redirect2NewURL() in e:\web\tagorewe\Render\ShowContent.aspx.cs:line 103 at Render_ShowContent.Page_Load(Object sender, EventArgs e) in e:\web\tagorewe\Render\ShowContent.aspx.cs:line 59