October 14, 2008 07:00am pdt

1. TheLearn... 370,420
2. jaime_oliv... 348,489
3. Fernando... 234,901
4. p_davis 131,515
5. Dhaest 128,323
6. angelIII 120,270
7. philipjonat... 109,070
8. emoreau 94,612
9. naspinski 92,990
10. graye 90,180
11. Idle_Mind 87,737
12. ShazbotOK 86,570
13. jcoehoorn 84,490
14. ZachSmith 83,600
15. ororiole 77,914
16. prairiedog 68,998
17. GreenGho... 68,920
18. gregoryyo... 66,140
19. BillyDvD 64,415
20. margajet24 62,348
21. jpaulino 60,265
22. jandromeda 57,485
23. burakiewicz 56,780
24. elimesika 53,435
25. JimBrandley 51,356

1. TheLearn... 598,894
2. jaime_oliv... 524,456
3. Fernando... 318,128
4. p_davis 203,900
5. gregoryyo... 194,190
6. Dhaest 162,123
7. angelIII 159,820
8. Idle_Mind 148,827
9. gauthampj 127,805
10. emoreau 127,169
11. JimBrandley 117,431
12. graye 111,030
13. philipjonat... 109,070
14. GreenGho... 102,910
15. jcoehoorn 101,115
16. dstanley9 100,134
17. ShazbotOK 99,738
18. surajguptha 96,150
19. naspinski 92,990
20. ZachSmith 83,600
21. ororiole 77,914
22. prairiedog 69,498
23. DarkoLord 68,916
24. jpaulino 68,889
25. BillyDvD 66,815

06.24.2008 at 05:01PM PDT, ID: 23513067

	[x] Attachment Details

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7.4

Working with Generics -- IList<T>

Asked by escheider in Microsoft Visual C#.Net, C# Programming Language, .Net Editors & IDEs

Good evening experts:

My team is currently implementing an application that will manage a list of drugs. To accomplish this task, we have implemented several data transfer objects to maintain these data. One data transfer object, MyDrugList contains a single attribute of type List<DrugDetailDto> drug. In this case, drug allows us to manage a list of drug objects .. add, remove, find, etc; however, upon submitting for code review, our enterprise architect pointed out a flaw in the development process and indicated we need not expose our List<T> objects: ( http://msdn2.microsoft.com/en-us/library/ms182142(VS.80).aspx)

As an alternative, he suggested that we implement the IList interface to transfer objects between our layers. I somewhat understand his requirement, but now some of our methods are not wanting to cooperate, which I've included below ..

1) Could someone explain why this is an issue?
2) Could someone assist with how we can implement our search methods using these IList implementations?

We are using 2.0 Framework .. C#

Thanks,Start Free Trial

         
           
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             Here is an example of where we search a DrugDetailDTO object for specific product data:
 
 /// <summary>//
        /// Extracts product information attached to a drug for a specified formulary
        /// </summary> 
        private DrugProductDTO GetProductDetail(DrugDetailDTO drug, string formularyID)
        {
            return drug.Products.Find(
                delegate(DrugProductDTO product)
                {
                    return product.ProductID.ToString().Equals(formularyID);
                }
                );
        }
 
AND
 
        /// <summary>
        /// Extracts Drugs information that has generics equivalents available
        /// </summary>
        private List<DrugDetailDTO> ExtractGenericsFromDrugList(List<DrugDetailDTO> myDrugList)
        {
            return myDrugList.FindAll(
                                      (
                                          delegate(DrugDetailDTO drug)
                                          {
                                              return drug.IsConvertibleToGenerics.Equals(true);
 
                                          }
                                      )
                                     );
 
 
        }
 
However, the find, findall, exists methods are not available with the IList interface.

           
         

Keywords: Working with Generics -- IList<T>

	Title
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Working with Generics -- IList<T>

Asked by escheider in Microsoft Visual C#.Net, C# Programming Language, .Net Editors & IDEs

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