[ArgumentException: Item has already been added. Key in dictionary: 'ד' Key being added: 'ד']
System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add) +9356587
System.Collections.Hashtable.Add(Object key, Object value) +11
System.Collections.Specialized.StringDictionary.Add(String key, String value) +60
Habama.ListWithLetters..ctor() +908
ASP.controls_listwithletters_ascx..ctor() +13
ASP.pages_artperson_aspx.__BuildControlListLet1() +26
ASP.pages_artperson_aspx.__BuildControlmyform() +418
ASP.pages_artperson_aspx.__BuildControlTree(pages_artperson_aspx __ctrl) +26
ASP.pages_artperson_aspx.FrameworkInitialize() +44
System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +54
System.Web.UI.Page.ProcessRequest() +78
System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +21
System.Web.UI.Page.ProcessRequest(HttpContext context) +49
ASP.pages_artperson_aspx.ProcessRequest(HttpContext context) +4
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +100
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75