how to implement selfValidation in n-Tier application.

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C#3.5

Hi Friends,


I want to implement selfValidation using the Microsoft Enterprise Library 5.0. Could you please help me out to over come the problem.


here is the reference code.

Business Objects

[HasSelfValidation]
public class Order
{
private int orderNo
private DateTime orderDate
...

[SelfValidation]
public void ValidateEntity(ValidationResults Results)
{
 if (orderDate==null)
 {
  results.AddResult(new ValidationResult("Order Date should not be null",this,orderDate, null, null));
 }
}
} 

This object is exposted through the WCF services to the client application
...

Client Application

OrderClient objOrderClient = new OrderClient();
            OrderClient.Open();
            Order objOrder = new Order()
             objOrder.OrderNo =1;

ValidationResults results = Validation.Validate(objOrder);

            if (!results.IsValid)
            {
                foreach (ValidationResult result in results)
                {
                    MessageBox.Show(result.Message);
                }
            }

This function ValidateEntity() is not calling and following error is raised :

'There is no source code available for the current location'

Could you please guide me how to implement the selfValidation.

Thanks