LINQ in Action roller

Ad-Hoc String Concatenation using LINQ

Eric White's Blog : LINQ — Wed, 10 Mar 2010 15:14:00 GMT

I regularly use functional programming and LINQ in two contexts – when writing code that is part of an example or tool that will potentially execute millions of times, and when writing ad-hoc queries. These days, I use C# and LINQ as my ‘scripting language’,...(read more)

Convert XDocument to XmlDocument (and Convert XmlDocument to XDocument)

Eric White's Blog : LINQ — Fri, 05 Mar 2010 14:49:00 GMT

Some time ago, I blogged about an approach for converting an XElement object to an XmlNode object , and vice versa. This is useful when you want to use a programming interface that takes and returns objects of type XmlNode, but you want to use the expressiveness...(read more)

Rollup Extension Method: Create Running Totals using LINQ to Objects

Eric White's Blog : LINQ — Mon, 15 Feb 2010 17:53:00 GMT

Recently, I had need for a new extension method for IEnumerable<T>, which I call "Rollup". This extension method is sort of a cross between the Select and Aggregate extension methods. Like Select, when using this extension method you write a lambda...(read more)

Building a LINQ IQueryable Provider – Part XVII (IQToolkit 0.17)

The Wayward WebLog — Tue, 09 Feb 2010 23:53:00 GMT

This is the seventeenth in a series of posts on how to build a LINQ IQueryable provider. If you thought this series would last this long then you must have some eerie metaphysical powers of insight that go beyond mere blind faith in the gods of interwebs. So powerful, in fact, you may now be considered a threat to national security, since with all your witchery and kanoodling you might be secretly tapping the thoughts and provoking the actions of persons in higher office into doing unthinkable, irrevocable...(read more)

Windows Azure and Cloud Computing Posts for 1/25/2010+

OakLeaf Systems — Mon, 25 Jan 2010 19:08:00 GMT

Windows Azure, SQL Azure Database and related cloud computing topics now appear in this weekly series. Note: This post is updated daily or more frequently, depending on the availability of new articles in the following sections: Azure Blob, Table...(read more)

Volta Redux by Erik Meijer’s Cloud Data Programmability Team and Reactive Extensions for .NET (Rx)

OakLeaf Systems — Sun, 24 Jan 2010 19:58:00 GMT

Volta began life in 2007 as a Microsoft Live Labs’ incubator project from the Tesla group with two primary objectives: Declarative refactoring from single-tier to multi-tier applications Recompilation of MSIL code to JavaScript Following are earlier references...(read more)

Writing Entity References using LINQ to XML

Eric White's Blog : LINQ — Thu, 21 Jan 2010 16:35:00 GMT

I need to write out some XHtml, and in several places, I want that XHtml to contain entities references. However, you can't simply write the entitle reference like this: XElement p = new XElement ( "p" , "  Hello" ); Console .WriteLine(p);...(read more)

Windows Azure and Cloud Computing Posts for 10/26/2009+

OakLeaf Systems — Sat, 31 Oct 2009 19:48:00 GMT

Windows Azure, SQL Azure Database and related cloud computing topics now appear in this weekly series. ••• Update 10/31 and 11/1/2009: Soyatec: Windows Azure SDK for Java ; Gunnar Peterson: Thinking Person’s Guide to the Cloud (Parts 1 – 4) ; • • Update...(read more)

LINQ and Entity Framework Posts for 10/19/2009+

OakLeaf Systems — Sun, 25 Oct 2009 20:38:00 GMT

Note: This post is updated weekly or more frequently, depending on the availability of new articles. Entity Framework and Entity Data Model (EF/EDM) Julie Lerman created a Screencast – What’s new in the Entity Data Model Designer in VS2010 and posted...(read more)

OakLeaf Blog Joins Technorati’s “Top 100 InfoTech” List

OakLeaf Systems — Sat, 24 Oct 2009 18:15:00 GMT

Despite the lowly 38 authority reported for several days by the Technorati widget to the left, a visit to the OakLeaf Systems Site Details page on 10/24/2009 reveals Techorati Authority: 511 and membership in the TOP 100 INFOTECH group for the OakLeaf...(read more)

LINQ and Entity Framework Posts for 9/21/2009+

OakLeaf Systems — Sun, 27 Sep 2009 17:34:00 GMT

Note: This post is updated weekly or more frequently, depending on the availability of new articles. Entity Framework and Entity Data Model (EF/EDM) Nikolaos Kantzelis dives into ASP.NET 4.0,SEO and meta tags in this 9/27/2009 post: I am thinking to create...(read more)

LINQ and Entity Framework Posts for 9/7/2009+

OakLeaf Systems — Wed, 16 Sep 2009 19:56:00 GMT

Note: This post is updated daily or more frequently, depending on the availability of new articles. Entity Framework and Entity Data Model (EF/EDM) Julie Lerman warns Take Caution with WinForms DataGridView RowPrePaint in this 10/9/2009 post: The DataGridView’s...(read more)

Building a LINQ IQueryable Provider – Part XVI (IQToolkit 0.16)

The Wayward WebLog — Tue, 15 Sep 2009 21:50:00 GMT

This is the sixteenth in a series of posts on how to build a LINQ IQueryable provider. If you have not read the previous posts you might try rolling into a ball and crying for momma. That’s right, reading on is as hazardous to your health as a skinned knee. Just be warned and have an anti-biotic on hand. ...( read more ) Read More......(read more)

LINQ and Entity Framework Posts for 8/24/2009+

OakLeaf Systems — Sun, 06 Sep 2009 19:40:00 GMT

Note: This post is updated daily or more frequently, depending on the availability of new articles. Entity Framework and Entity Data Model (EF/EDM) Julie Lerman ’s Follow up on last week’s Entity Framework Tips & Tricks webcast post of 9/3/2009 says:...(read more)

DescendantsAndSelfTrimmed LINQ to XML Axis Method

Eric White's Blog : LINQ — Wed, 19 Aug 2009 19:01:00 GMT

[Blog Map] There are some circumstances where I need a variation on the DescendantsAndSelf axis method that allows me to specify that specific elements (and the descendants of those elements) are ‘trimmed’ from the returned collection. One of the things...(read more)