Microsoft LINQ Books

luglio 2008 - Posts

• The adoption of LINQ

  Eric White has written an interesting post titled "Are developers using LINQ?" - there are interesting considerations about the adoption of functional programming too, but the most interesting part for me is the list of comment of the post. A lot of people Read More... Posted venerdì 25 luglio 2008 18.06 by Marco.Russo | 0 Comments

• Multiple Results with LINQ to SQL

  I just read a post about getting multiple results with LINQ to SQL without using stored procedures. This technique is interesting when you have multiple queries returning a few rows each one and you want to save time by skipping some roundtrip between Read More... Posted giovedì 24 luglio 2008 17.49 by Marco.Russo | 0 Comments

• Use of Distinct and OrderBy in LINQ

  A few days ago I found a bug in a program written using LINQ to SQL, which was caused by years of use of SQL. The requirement was something like: get the distinct values of (bla bla bla) sorted alphabetically. An example of the required query with Northwind Read More... Posted domenica 20 luglio 2008 19.16 by Marco.Russo | 1 Comments

• LINQ query optimizations

  Look at this excellent blog post written by K. Scott Allen . I completely agree with him: don't try to optimize a LINQ query until you measure its performance and understand it is really a bottleneck that needs to be improved. An interesting consideration Read More... Posted sabato 19 luglio 2008 7.28 by Marco.Russo | 1 Comments

• Implement progress reporting and cancellation of LINQ queries

  Samuel Jack wrote two interesting posts discussing possible extension methods for LINQ. One is to implement progress reporting of a LINQ query. The other is to implement a way to cancel a running LINQ query . Both implementations are very simple and they Read More... Posted venerdì 18 luglio 2008 12.06 by Marco.Russo | 1 Comments Filed under: LINQ

• LINQ to SQL and varchar(1) fields

  If you are using the Object Relational Designer of LINQ to SQL creating an entity of an existing table that has some VARCHAR(1) fields, you are going into this issue. The data member created in C# is char instead of string. If the field is always filled Read More... Posted giovedì 17 luglio 2008 18.03 by Marco.Russo | 1 Comments

• The Amazon Reviews law

  While you have few reviews, a single bad review lower the overall rate. Today we got a bad review, probably because there was a misunderstanding about the scope of the book. I feel the need to give some information to help other possible readers to make Read More... Posted venerdì 11 luglio 2008 19.48 by Marco.Russo | 0 Comments

• Extending LINQ to XML

  Eric White shows some interesting use of LINQ to XML to query an Open XML document. Something that is not immediate to learn when you use LINQ is that you can define your own extension methods to make your queries smarter and more readable. This post Read More... Posted giovedì 10 luglio 2008 19.44 by Marco.Russo | 0 Comments