LINQ in Action - THE LINQ book

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• C# Language
• Data Access

• LINQ Chat on Thursday Oct. 20

  We will have our second LINQ and C# 3.0 language chat on Thursday, October 20, 2005 at 1pm Pacific Time (GMT - 8:00). Last time we were overwhelmed with 5x as many questions as usual but hope to do better this time. Overall schedule of MSDN chats is at: http://msdn.microsoft.com/chats/ Read More... Posted Monday, October 17, 2005 2:43 PM from Dinesh's Cyberstation | (Comments Off) Filed under: LINQ, C# Language, Data Access, PDC05

• DLinq: Demystifying OR Updates

  Here is another FAQ I got about DLinq at PDC. How does DLinq handle changes to objects? How is it similar to or different from ADO.NET DataAdapter? Here is a quick overview of what goes on under the covers at a conceptual level: Before objects are modified: Original values are copied for Detecting changes; and Detecting optimistic concurrency conflicts After SubmitChanges() is called: Modified objects in the object graph are identified. This includes changes in relationships between persistent objects Read More... Posted Thursday, October 13, 2005 11:05 AM from Dinesh's Cyberstation | (Comments Off) Filed under: LINQ, Data Access, PDC05

• DLinq Mapping: External Or Not (Attributes or XML file)

  At PDC (and before that on ObjectSpaces project), this was a hot discussion topic. What approach is better: attributes or external source like an XML file. I would like to open up this topic beyond the 1:1 conversations at PDC to the blogosphere. I will start with a small backgrounder and you tell us which one makes more sense to you. Advantage attributes Really simple for the basic cases. No need to create or consult (e.g. for debugging) another source file. Works with current tools that handle Read More... Posted Monday, September 19, 2005 11:14 AM from Dinesh's Cyberstation | (Comments Off) Filed under: LINQ, Data Access, PDC05

• Connected, Disconnected and DLinq

  Here is another FAQ question that has come up at PDC. Since DLinq is a part of the next version of ADO.NET, it is natural to ask - is it connected or disconnected? After all, we have talked about connected vs disconnected components in ADO.NET quite a bit. DataReader is connected (you are using the underlying connection while consuming the data) while DataSet is disconnected. You need to use DataAdapter to bridge the two worlds. All nice and explicit. Quite often you need to combine the two modes Read More... Posted Friday, September 16, 2005 1:53 PM from Dinesh's Cyberstation | (Comments Off) Filed under: LINQ, Data Access, PDC05