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Silverlight and RIA: Adding a ComboBox to a DataForm

Building a DataForm is quick and easy and is detailed in this prior post . Even customizing it is a breeze as was also shown in that prior post. But now the design calls for a ComboBox. Ready to walk off a cliff? It is surprisingly difficult to modify a DataForm to display a working ComboBox that is...

Posted to Deborah's Developer MindScape by Deborah Kurata on Wed, Nov 25 2009
Filed under: Filed under: VB, C#, .NET, CSharp, Silverlight, RIA Services
Silverlight and RIA Services: Binding to a DataForm

When building line of business (LOB) applications, a common feature is create, review, update, and delete (CRUD) operations on the data in the application. An easy way to provide this feature is using the Silverlight DataForm. [For an introduction to Silverlight and RIA Services, start here .] NOTE:...

Posted to Deborah's Developer MindScape by Deborah Kurata on Wed, Nov 25 2009
Filed under: Filed under: VB, C#, .NET, CSharp, Silverlight, RIA Services
Silverlight and RIA Services: Managing Your Codes

Every application has some type of codes: customer types, reason codes, states, and so on. Sometimes these codes can be hard-coded in an application as Enum values. But other times these codes are more readily stored in a table. This post details how to work with code tables through RIA Services. [For...

Posted to Deborah's Developer MindScape by Deborah Kurata on Wed, Nov 25 2009
Filed under: Filed under: VB, C#, .NET, CSharp, Silverlight, RIA Services
Silverlight: Building a Grid and StackPanel in Code

Many Silverlight examples show how to build controls with XAML. But XAML does not support programming logic. So sometimes you need to build the controls with real code in C# or VB. This example demonstrates how to build a Grid and StackPanel with Buttons first in XAML and then in C# and VB. It seems...

Posted to Deborah's Developer MindScape by Deborah Kurata on Mon, Nov 23 2009
Filed under: Filed under: VB, C#, .NET, CSharp, Silverlight
Silverlight: No More Boxy UIs

As WinForms and WebForms developers, we are used to building user interfaces (UIs) that look like this: Notice the rectangular header area and the rectangular link area and the rectangular data entry area. With Silverlight it is (relatively) easy to give the UI less of a boxy look: So the above UI may...

Posted to Deborah's Developer MindScape by Deborah Kurata on Tue, Nov 17 2009
Filed under: Filed under: VB, C#, .NET, CSharp, Silverlight
Silverlight: Images

I just needed to add a simple image to my Silverlight application to include a company logo. Three hours later … This post provides information on the image formats supported by Silverlight so that you don't run into the same issues and waste as much time as I did today. [NOTE: To anyone on the Silverlight...

Posted to Deborah's Developer MindScape by Deborah Kurata on Fri, Nov 13 2009
Filed under: Filed under: VB, C#, .NET, CSharp, Silverlight
Silverlight and RIA: Enum Properties

I mentioned in this prior post that RIA Services did not know how to handle properties that have an Enum data type. The problem is not really that RIA Services does not know how to handle the properties; rather it does not have any knowledge of the Enum itself. Take this example. In C#: public enum CustomerTypeOption...

Posted to Deborah's Developer MindScape by Deborah Kurata on Tue, Nov 10 2009
Filed under: Filed under: VB, C#, CSharp, Enum, Silverlight, RIA Services
Silverlight and RIA: Sharing Your Business Object Files

So I have read in dozens of places that you can easily share a source code file between your business objects and your Silverlight project. So I thought I would try it. No go. [To begin with an overview of Silverlight, RIA, and your business objects, start here .] Supposedly, if you created a file in...

Posted to Deborah's Developer MindScape by Deborah Kurata on Tue, Nov 10 2009
Filed under: Filed under: VB, C#, .NET, CSharp, Silverlight, RIA Services
Silverlight and RIA: Ignoring a Property in Your Business Object

There may be times when you want RIA Services to ignore a property in your business object. This may be the case if you know you won't ever need to access the property from your Silverlight UI or if you can't make RIA services understand the property properly. [To begin with an overview of Silverlight...

Posted to Deborah's Developer MindScape by Deborah Kurata on Tue, Nov 10 2009
Filed under: Filed under: VB, C#, .NET, CSharp, Silverlight, RIA Services
Silverlight, RIA Services, and Your Business Objects

With RIA Services, it is easy to use your own business objects in your Silverlight application… once you have the basic plumbing in place. However, there are quite a few steps required to set up that plumbing. This post details the process of hooking up your business objects, RIA Services, and Silverlight...

Posted to Deborah's Developer MindScape by Deborah Kurata on Thu, Nov 5 2009
Filed under: Filed under: VB, C#, .NET, CSharp, Silverlight, RIA Services
XAML: Gradients

Gradients are a good way to make your application more visually interesting. They turn a flat solid color into something more natural and appealing to the eye by creating an illusion of light and shadow. For example, compare this image which uses flat colors: to this image that uses gradient colors:...

Posted to Deborah's Developer MindScape by Deborah Kurata on Tue, Nov 3 2009
Filed under: Filed under: VB, C#, .NET, CSharp, XAML, Silverlight
What we have here is a failure to communicate

you can tell from the title there’s a Friday rant coming can’t you ? Well yeh, sometimes what should be a simple task of writing code becomes painstakingly slow. Take for example this one line of code: Dim doc = XDocument.Load( "abc.xml" ) Now if you like to write...

Posted to @ Head by bill on Thu, Nov 13 2008
Filed under: Filed under: VB, Rant, LINQ, VS2008, CSharp, Silverlight, .NET

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