LINQ in Action - THE LINQ book

You can use lambda expressions to write an event handler, even for classes that predate C# 3.0 and the latest version of the framework.  This can shorten your code, and make it easier to read.  For example, the code to validate an XML tree using an XSD schema takes an event handler because it may return multiple errors or warnings for a ...

When developing C# programs in the functional programming style, you often need to dump out a collection to the console.  Object dumper is a great tool to use for this.  It is a sample that far too few developers know about. A functional transform typically takes the form of successive transformations: transform collection a => ...

Just as soon as I learn something, I blog it.  This has a potential pitfall – sometimes I blog something and then learn that my approach was incorrect.  But I’m not too awfully proud – I just blog again and tell you my new lessons learned. Nearly two years ago, I wrote some LINQ to XML code to use reflection take an object graph ...

The response to my previous blog post has been very interesting to me.  And it has, to a very large extent, matched my own experience. I have seen four basic scenarios where folks use LINQ: Using LINQ to Objects (and LINQ to XML, which is really just LINQ to Objects), primarily using the extension methods, and the so-called ‘method ...

I had an interesting conversation with my nephew the other day.  He is a very bright CS student working as a summer intern at a software company (not Microsoft).  He is programming in C# using Visual Studio 2008.  I asked him if developers at his company were using LINQ, and he said, ''No, that the folks in charge had basically ...

In the last three posts, in addition to the information regarding how we want to alter the markup in an Open XML document, I've made a few observations about how to write LINQ to XML code when modifying an XML tree in such a way that it becomes harder to introduce bugs.  In addition, I've also mentioned a couple of other points that ...

This post presents a snippet of code to remove comments from an Open XML Wordprocessing document. Note: This post may be of interest to LINQ to XML developers, as it contains some information that helps you write queries that perform better.  In the case of very large documents, the approach described ...

This post presents some code to remove personal information from an Open XML word processing document. Note: this post contains interesting information for LINQ to XML developers even if you are not interested in removing personal information from a document.  It demonstrates some easy ways to write robust code in LINQ to XML that behaves ...

This is a fun, geeky post for those interested in functional programming. Sometimes you have flat data where there is hierarchy expressed in the data, but the form of the data is flat.  You may need to transform this data into a hierarchy, such as an XML tree. For instance, you may have the following data: Heading[] headings = new[] ...

In this post, I’m presenting some code that uses the Open XML SDK and LINQ to XML to query an Open XML document.  I’ve posted on this before, but this version is cleaner and smaller.  It also is an example of code written in the functional style.   The most common need is to retrieve the paragraphs of a word processing ...