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join in LINQ to SQL and LINQ to Entities Considered Messy, Redundant

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January 13, 2010
Author: Alf Christophersen In this post I will demonstrate that use of the join keyword in LINQ to SQL and LINQ to Entities is nearly always wrong. LINQ queries which you write with the join keyword are harder to read and write than queries you write using associations, and they require knowledge of database metadata which is not required otherwise. This introduces the potential for errors and…
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JSON Types for Server Methods in DataSnap 2010

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August 19, 2009
Author: Adrian Z1428 converter_1946 I am very happy I was granted permission to talk about the new features present in Delphi 2010 concerning database area. DataSnap 2010 (DS2010) extended the list of server method parameter types with the full suite of JSON types. It is now…
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In LINQ, Beware of Skip(0)

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June 10, 2009
Author: Marc Geldon Calling IQueryable<T>.Skip(0) seems like it should be “free.” In other words, since it will have no effect on the resulting data, there should be little to no performance cost for calling it. But this is demonstrably not true in LINQ to…
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Using DayPilot with ASP.NET MVC

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May 12, 2009
Author: Craig Stuntz I’m going to demonstrate how to use the open-source DayPilot Lite calendar control in an ASP.NET MVC application. I will discuss the capabilities of the control and consider the general problem of how to use controls designed for “plain” ASP.NET in MVC applications. I’m including a demo solution which you can download and run yourself. Download the demo…
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Using jqGrid with ASP.NET MVC: Deleting Records

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April 29, 2009
Author: Craig Stuntz This is the fifth post in a series on using jqGrid with ASP.NET MVC. Today, we’re going to begin examining the grid’s editing features by implementing deletes. If you’re new to the series, you might want to start at the beginning. The delete…
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Using jqGrid with ASP.NET MVC: Finally, A Solution

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April 17, 2009
Author: Craig Stuntz Having introduced jqGrid and written LINQ extension methods to make supplying data to the grid easy, we’re now ready to put together a demo application. The solution I’m going to build demonstrates sorting and paging. In a future post, I will enhance it to demonstrate search, formatting, and editing data. I’ve made the demo application available for download…
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Using jqGrid with ASP.NET MVC: LINQ Extensions

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April 15, 2009
Author: Craig Stuntz Mere hours after I posted the first in a planned series of posts on using jqGrid in ASP.NET MVC applications, Phil Haack, a rather-more-widely-read-ASP.NET-MVC-blogger, wrote a long post on, er, exactly the same thing. Who, me, bitter? Naahhh… 🙂 But…
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Using jqGrid with ASP.NET MVC: Introduction

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April 14, 2009
Author: Herwig H10162 This is the first post in a short series on using the jqGrid jQuery plug-in with ASP.NET MVC. In this short introduction I will describe the plug-in, list some of its strengths and weaknesses, and explain why we selected it for our MVC applications. In…
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ASP.NET MVC TempData Is Really RedirectData

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January 23, 2009
Author: Craig Stuntz Update: This post was written for MVC 1. TempData behaves completely differently in MVC 2 Beta and higher. In these versions, TempData is cleared only when it is read (or when the session expires). Many people seem to be confused about the TempData feature in ASP.NET MVC. TempData behaves like the ViewData dictionary, except that it persists until the next request from the…
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