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Testing & ALM
Lambda woes with csc
While helping with the development of our Tasks application I stumbled upon a strange compiler error. There was a lambda expression that was compiling just fine before I touched the file with the lambda and after changing a line inside the body of the lambda, the project suddenly stopped compiling. The error was, that it could not find an adequate overload of the method that accepted the lambda in question as an argument. The cause turned out to be very interesting(for me at least) and I think it is worth sharing. Consider that you have a function with two overloads that both accept...
October 12, 2011
RadBulletGraph Architecture and Features
We introduced RadBulletGraph beta in the Q2 2011 SP1 release with the idea that the sooner we release a stable product the more time we will have to polish it and even implement user requirements before the final version. With this blog post I will explain how RadBulletGraph is structured internally and how this internal structure enables the features that it currently supports. With this in mind I kindly ask you, dear reader, to give your opinion on RadBulletGraph, to tell us what else you need or what can be done in a better way so that we can provide the best...
October 07, 2011
Client-Side Hierarchical DataBinding to OData with RadGrid for ASP.NET AJAX
If you haven't heard, Odata is a Web protocol that exposes your data to the Web, allowing consumers to make queries through a set of URI parameters. RadGrid, Telerik's ASP.NET AJAX Grid control features a rich client-side API that enables you to easily bind to OData services and have all the paging, sorting and filtering done without ever posting the page to the server. That is all fine if your data is flat. Binding to hierarchical data, however, is another story. RadGrid officially supports hierarchical databinding on the server only. But let's go unofficial for a while. In this blog post we'll demonstrate an approach for detail table databinding...
October 03, 2011
RadBulletGraph for Windows Phone 7
The Q2 2011 SP1 release is already out and it includes many improvements and fixes for the existing controls promised to our customers, however, it also includes a brand new component that is in the beta stage - RadBulletGraph. The bullet graph is a component for data visualization that succinctly and accurately visualizes a comparison between different data in a quantitative and qualitative manner. A full specification of the bullet graph component can be found here. The great thing about the bullet graph is that it takes the linear subset of the gauges and uses it so that the information is visualized clearly and concisely...
September 28, 2011
RadControls for Windows Phone 7 Mango and Q2 2011 (NoDo) SP1 are now available
In mid-August, sometime after the Q2 2011 release, we upgraded RadControls for Windows Phone 7 to support Windows Phone 7.5 (Mango) and released an official build that contains some major performance improvements in RadDataBoundListBox and also all major controls that were introduced back then with Q2 2011: RadChart RadCalendar RadBusyIndicator Enough time has passed for us to gather some very valuable feedback from you to prepare a Service Pack which addresses some critical issues, introduces a new control (RadBulletGraph) and a meaty new feature in our powerful RadChart. We have also managed to greatly optimize the performance of our Data Engine by using the new System.Reflection.Emit APIs. RadChart alone represents...
September 22, 2011
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