Geeks With Blogs
Peter Tweed Exploring and explaining the mysteries of .NET July 2009 Entries
Server calling the client - duplex WCF Services in Silverlight
A very useful feature in Silverlight is the ability to use duplex services, so that the server can send messages to the Silverlight client. This is really useful when the server should control the when the messages are sent and pushed to clients as opposed to the client having to manage the code to regularly poll a service to find out if the state it is interested in has changed. In this post I we will implement a simple duplex service. The service will allow a user to register to receive stock updates ......

Posted On Tuesday, July 28, 2009 10:15 PM

Inter Silverlight Application Communication in Silverlight 3
With any complex enterprise application delivered over the web it is typical there are very complex functions that truly need Rick Internet Application interactivity with the end user and other areas where a simple web page will suffice. Similarly it is reasonable to see situations where more than one RIA component will exist on the screen at the same time. It would be great if there were an easy way for these RIA components were decoupled yet able to send messages between each other. Silverlight ......

Posted On Sunday, July 26, 2009 11:18 AM

Navigation in Silverlight 3
OK so with the release of Silverlight3, I am in catch up mode on the updated functionality. My first exploration is into the navigation functionality that allows Silverlight 3 apps to take advantage of the Back and Forward buttons in the browser to navigate browsing history of the Silverlight app as well as URL mapping among other things. In this post I am covering how to add navigation to an existing application. Steps: 1. Create a new Silverlight application 2. Add a reference to the System.Windows.Controls.Nav... ......

Posted On Friday, July 24, 2009 11:54 PM

SL3 IS OUT!!!!!
As per Thomas Huber  3 is released!  See Thomas's blog for links to download SL3 toolkit, SL3 SDK and Blend with Sketchflow.

Posted On Thursday, July 9, 2009 3:34 PM

East Bay .NET User Group FUNdamentals - AJAX options in ASP.NET
Following my FUNdaments presentation tonight to the East Bay .NET user group on the options available to ASP.NET developers for using AJAX type methods for grabbing information/content from a server from the client side browser, the code can be found here and the presentation can be found here. Once again Beth Massi rocked on the main presentation about VB10, C# 4.0 and Visual Studio 2010. Lots of goodies to look forward to. That said it cracks me up that MSFT is adding more capabilities to facilitate ......

Posted On Wednesday, July 8, 2009 11:29 PM

MVVM via attached behaviors in Silverlight
I am a keen believer when building applications in having a clean logical architecture with separation of concerns as much as possible – taking into account the goals of the project and the environment in which the application will be maintained. As such, when it makes sense I believe in use of MVC, MVP, MVVM etc type patterns to enable efficient development and maintenance of applications. I can testify to the worth of adopting these styles to improve the quality of products developed from my experience ......

Posted On Tuesday, July 7, 2009 6:58 PM

Taking advantage of data binding in Silverlight
When building applications we usually want to adopt the write once user everywhere or DRY (Don’t Repeat Yourself) goals for simpler maintenance, validation, configuration,etc etc. So for business applications the situation is usually develop a control, that can be re-used and that can have different data bound to it for the situation in which it is used. Silverlight has a fantastic mechanism – the Silverlight Property System - that manages data binding among other things. This means that the late ......

Posted On Sunday, July 5, 2009 12:10 PM

A simple Silverlight CRUD application – part 4: doing the D in CRUD
This is the final post in a four part series to demonstrate how to use the standard MSFT technologies to implement a CRUD data application in Silverlight. The steps in this post build upon those completed in part 3. The goal of this series is to show those of you who are relatively new to Silverlight how analogous building such an app in Silverlight is to say building it in ASP.NET, Win Forms or WPF. This app is built on Visual Studio 2008 SP1, SQL Server 2008, Silverlight 2.0 and the Silverlight ......

Posted On Friday, July 3, 2009 9:23 PM

A simple Silverlight CRUD application – part 3: updating the U in CRUd
This is the third post in a series to demonstrate how to use the standard MSFT technologies to implement a CRUD data application in Silverlight. The steps in this post build upon those completed in part 2. The goal of this series is to show those of you who are relatively new to Silverlight how analogous building such an app in Silverlight is to say building it in ASP.NET, Win Forms or WPF. This app is built on Visual Studio 2008 SP1, SQL Server 2008, Silverlight 2.0 and the Silverlight Toolkit using ......

Posted On Friday, July 3, 2009 12:16 AM

A simple Silverlight CRUD application – part 2: creating the C in CRud
This is the second post in a series to demonstrate how to use the standard MSFT technologies to implement a CRUD data application in Silverlight. The steps in this post build upon those completed in part 1. The goal of this series is to show those of you who are relatively new to Silverlight how analogous building such an app in Silverlight is to say building it in ASP.NET, Win Forms or WPF. This app is built on Visual Studio 2008 SP1, SQL Server 2008, Silverlight 2.0 and the Silverlight Toolkit ......

Posted On Friday, July 3, 2009 12:00 AM

A simple Silverlight CRUD application – Part 1: putting the R in cRud
This is the first post in a series to demonstrate how to use the standard MSFT technologies to implement a CRUD data application in Silverlight. This post is beginners stuff - there’s nothing advanced here. Most readers with some experience of Silverlight will learn nothing from this post, but I want to start at the beginning so those of you who are relatively new to Silverlight can see how analogous building such an app in Silverlight is to say building it in ASP.NET, Win Forms or WPF. This app ......

Posted On Wednesday, July 1, 2009 7:29 PM

Building Silverlight Business Apps - presentations to Bay .NET User Groups
In January and March 2009 I presented to the East Bay .NET and San Francisco Bay .NET user groups respectively on how to build business applications in Silverlight. The theme of the presentations was to show how developing line of business applications in Silverlight is extremely similar to other technologies like Win Forms, WPF or ASP.NET. I demoed how to build a simple CRUD application in Silverlight hitting a SQL Server database over WCF. The building of the application during the presentation ......

Posted On Wednesday, July 1, 2009 6:51 PM

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