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By Michael Washington on 1/30/2012 3:10 PM


Visual Studio LightSwitch allows you to create Theme extensions. A theme controls the overall look of a LightSwitch application…


By Michael Washington on 1/28/2012 7:06 AM


Visual Studio LightSwitch allows you to create Screen Template extensions. The primary reason you would want to create one is to allow LightSwitch programmers to easily consume a custom control.

By Michael Washington on 1/22/2012 12:55 PM

When deploying a LightSwitch web based application, the easiest method is to use the Publishing Wizard. However, the server that will host the LightSwitch application has to have the prerequisites installed

LightSwitch creates a normal ASP.NET application that launces a Silverlight application, so it is possible to package in...
By Kostas Christodoulou on Friday, January 20, 2012
Reading this article in MSDN forums and taking the best (I hope) of what LR_ and Michael Washington offered as solutions I ended up with an extension class that allows you to put your application’s logo on the Ribbon Bar of any shell having one. You also have the choice to put it either on the left or the right. LR_’s original code was only modified in 2 points.

You can decide if you want you Application Logo on the left or on the right of your commands. You don’t need to pass a URL to the image. The application’s logo (defined in project properties) is bound inspired by the XAML provided by Michael Washington. ...
By Michael Washington on 1/17/2012 6:41 PM


In this article we will cover a project that implements the ComponentOne Excel control, from the Studio for Silverlight suite, in Visual Studio LightSwitch. Specifically, it will demonstrate importing and exporting Microsoft Excel files. The sample project expands on the Expense Report application covered in the article: Using the ComponentOne FlexGrid Control in Visual Studio LightSwitch.

This project enables the following scenarios:

  • Allow employees to use an Excel spread sheet to create their expense reports.
  • Display the Excel spread sheet in the ComponentOne FlexGrid control, with all formatting and formulas, and allow it to be edited before importing.
  • Import the Excel spread sheet into the Expense Report application.
  • Export existing expense reports to the control and save them as Excel files.
By Michael Washington on 1/17/2012 12:11 AM

This control has a long history. In brief, this issue started back in September 2011 when LightSwitch team member, Karol Zadora published code that allowed you to display hierarchal data in a nested tree. I covered it in the article:  Tree Control: Hierarchical Data with LightSwitch.

By Kostas Christodoulou on Monday, January 16, 2012
Currently being in the process of developing a business application, I came across an issue that looked harmless, but turned out to be what the title elegantly :-P implies.

Being very proud of what I can achieve in no time with LS, I had my product manager testing the application, when she ask me the simple: “How can I change something and save it as a new object with a new name. “It’s not implemented yet, but I am getting my hands on it right now and you will have it in no time”. What a typical developer answer!

“No time” turned out to be a full workday of experimenting trying to find out the best and most generic way to implement Save As functionality. Having an object being copied to another was something I had already implemented but I worked fine only on originals. Fetching an object to the client, modifying it somehow and then trying to copy to a new one, discard the changes of the original object and save the copy…well it was not a piece of cake, rather a pastry shop.

Creating a new...
By Michael Washington on 1/1/2012 10:56 AM


When you have a list of items that have a particular sort order, you may have the need to allow the end-user the ability to change the sort order. This article shows a solution…

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