ASP.NET

[AjaxPro.AjaxMethod]
    public bool UpdateCoupons(int ID, int CouponsNo,int TripsNo ,int GPSNo)
    {

        if (CouponsNo == null) CouponsNo = 0;
        if (TripsNo == null) TripsNo = 0;
        if (GPSNo == null) GPSNo = 0;

       // if (string.IsNullOrWhiteSpace(Exemption)) return false;
        try
        {
            using (Model.NadafaEntities context = new Model.NadafaEntities())
            {
                context.cap_ChangeCoupons2(ID, CouponsNo, TripsNo, GPSNo, HttpContext.Current.User.Identity.Name.ToLower());
            }
            return true;
        }
        catch (Exception ex)
        {
            return false ;
        }
    }

<DataGrid Grid.Row="1"
            Grid.Column="0"
            Background="White"
            ItemsSource="{Binding SelectedInjury.Documents}" 
            SelectedItem="{Binding SelectedDocument}"
            AutoGenerateColumns="False"
            FontSize="12"
            FontWeight="Normal"
            FontStyle="Normal"
            IsReadOnly="True"
            TabIndex="1200"
            Height="130"
            Margin="3">

InjuryEntity.Documents.Add()

Documents = new List<InjuryDocumentsEntity>();
Documents.CollectionChanged += Documents_CollectionChanged;

private void Documents_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
{
    RaisePropertyChanged("Documents");
}

Public Class ImplementationHelper
    Public Enum ExcelSheetName
        "High Level Benefits"
          "Benefits"
     
    End Enum