5 items found in the LINQ Category

Cannot use a lambda expression as an argument to a dynamically dispatched operation

18 September 2012 08:08

LINQ ASP.NET MVC ASP.NET Web Pages WebMatrix

Since the introduction of the Web Pages framework, ASP.NET has been making use of the dynamic type introduced in C# 4.0. Along with that comes some new error messages which at first glance don't make a lot of sense - mainly because they are unexpected. I have already looked at how dynamics do not support extension methods, and a recent question in the ASP.NET forums illustrated another way in which the dynamic type can catch you out.

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1 Comment for this item

Dependency Injection and Inversion of Control with ASP.NET MVC

10 October 2009 22:46

LINQ ASP.NET MVC Entity Framework

As you delve more into ASP.NET MVC you start to come across a whole new way of doing things that Web Forms development didn't really expose you to. Inversion of Control (IoC) and Dependency Injection (DI) are two phrases that crop up a lot in the MVC space. So what are they all about? And should you care?

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26 Comments for this item

Parameterized IN clauses with ADO.NET and LINQ

28 September 2009 21:53

C# ADO.NET LINQ ASP.NET 3.5

Since my article on using parameters for Preventing SQL Injection In ASP.NET, I have had a few emails asking how to do the same with an IN clause expression. In this entry, I explore a couple of ways to do this.

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11 Comments for this item

RSS Feeds and Google Sitemaps for ASP.NET MVC with LINQ To XML

10 July 2009 22:43

LINQ ASP.NET MVC

For the majority of personal web sites, two uses of XML are commonplace: creating an RSS feed and a Google Sitemap. Here, I look at how to create both of those using LINQ to XML for an ASP.NET MVC web site.

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Search Engine-Friendly Custom Paging with the GridView and LINQ to SQL

20 November 2007 22:54

LINQ ASP.NET 3.5 ASP.NET Web Forms

The main problem I find with the built-in paging functionality offered by the GridView control is that the paging links are managed by Javascript. This is a bit awkward for people who disable, or don't have Javascript in their browser, but more importantly, the links can't be triggered by search engines. If you rely on the GridView to paginate links to content, this can prove disastrous, and much of your content will be inaccessible to search engines. Motivated by Scott Guthrie's series of blog entries on LINQ to SQL, available in the .Net 3.5 framework, I set about getting some custom paging working with html paging links.

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15 Comments for this item

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