private void UpdateMailCount(EmailAccountItem item)
 {
     this.eMailModal = (item.DataContext as EMailModal);
     if (this.eMailModal != null)
     {
         System.Action<EmailAccountItem> a = new System.Action<EmailAccountItem>(this.OpenExplorer);
         a.BeginInvoke(item, delegate(System.IAsyncResult ar)
         {
             a.EndInvoke(ar);
             this.Setmail(this.eMailModal);
         }, null);
     }
 }