DenkzeitWiki

Data Set

ADO
DomainObjects
CodeGeneration
ObjectRelationalMapping
Microsoft-based solution for accessing data in a DBMS.

• http://objectsharp.com/cs/blogs/datasetfaq/

Discussion

• Returning DataSets from WebServices is the Spawn of Satan and Represents All That Is Truly Evil in the World

DataSets and CustomEntities (== DomainObjects)

• Add behavior to (typed) DataSets via partial class extensions (CSharp)
  • see AspectOrientedProgramming
    
  
  
• On the Way to Mastering ASP.NET: Introducing Custom Entity Classes by Karl Seguin
  • comparing untyped DataSets with CustomEntities - actually such a comparison is useless.
  • Poor MSDN article on Custom Business Entities and DataSets
    • CustomEntities should be compared to typed(!) DataSets
  • Article about Custom Entities vs DataSets
    • use typed DataSets underneath your CustomEntities: [1]
  • DataSets Are Not Evil
  • DataSets Suck
    • not really...
      
  
  
• Datasets vs. Custom Entities
  • DataSets provide too much uncontrolled power to 'upper' tiers.
    
  
  
• Typed DataSets in ADO.NET
  
  
• Using partial classes to make intelligent datasets
  
  
• Must-have Typed DataSet extensions
  • hard to propagate changes of the DB-schema into the (typed) DataSets
    • So: DataSets are nice for quick'n'dirty solutions or when the schema-changes have leveled off