Get flash to fully experience Pearltrees
Most graphical user interfaces (GUIs) spend a large portion of their time idle while waiting for events that are generated in response to user interactions. With careful programming this idle time can be used constructively, without affecting the responsiveness of the UI. The WPF threading model doesn’t allow input to interrupt an operation happening in the UI thread. This means you must be sure to return to the Dispatcher periodically to process pending input events before they get stale. Consider the following example: This simple application counts upwards from three, searching for prime numbers.
YOUAfter publishing my AttachedCommandBehavior library, (you can read about this here ), some WPF Disciples recommended some new features to make the library cover more use cases. Thanks William Kempf your input was amazing! I added 2 new features - Support for Collection of binding to commands - Support for Light weight Commands or as I call them Action Support for Collection of binding to commands
To use Visual Profiler, start the WPF application that you want to analyze. Once the application has started, click the Visual Profiler tab, click the Actions menu, and then click Select Process . In the Select Process dialog box, select the application process that you want to analyze and then click Select .
More than once, I’ve found myself wanting to be able to demonstrate the range of controls that are available for Silverlight and WPF and, today, I ended up in that same place and decided to do something about it. I built a very, very simple WPF application. Screenshot is below and you can install the application via ClickOnce by clicking on the picture below (note you'll need .NET Framework V3.5 Sp1 as I don't install it for you here) ;
Oct 31, 2009 CollectionViewSource has existed for a long time in WPF and was recently introduced in Silverlight 3. My next post will cover CollectionViewSource in the context of Silverlight. But before covering that topic, I’ve decided to provide some background about why we introduced this class in WPF.
A while back I answered this question on stackoverflow and have been meaning to elaborate on my answer ever since with a more comprehensive blog post. The question is about how to highlight some text in the UI when the user enters some search text. I thought I’d extend the concept into a clean, generic solution as far as I could and share it here. My requirements are pretty straightforward:
Please note that the screenshots in this post are not displaying correctly. To view them in their full fidelity, right click on them and save them as a .PNGs. Then use your image viewing program of choice.
One of the common things that comes up on multiple projects using WPF is the ability to overlay the screen or a certain portion of it. Either to create a richer modal-type experience than a message box provides or to block access to a certain portion of the screen while an asynchronous or long running operation is happening. There are a number of ways to do this but the one I've settled on after tackling it on a few projects is an adorner that automatically overlays and control with any content you want. Other options include using the Popup control, which is problematic because popups are not part of the normal visual layout. They are always on top of all other content and don't move when you resize or move the window, at least not automatically. Another way you can do it is put everything inside a grid, and add the content you want to overlay with at the end of the Grid's content with no Row or Column specification.
Recently I needed to allow users to resize a WPF Popup . After implementing a non-generic solution, I decided to attempt to turn the concept into a generic WPF control. The Resizer control is a specialised ContentControl that can be used as follows: < kb:Resizer xmlns:kb ="http://kent.boogaart/controls" > Content </ kb:Resizer > The Resizer control adds resizing behaviour to the content you place within it. The default template uses a ResizeGrip and allows the user to drag the grip in order to resize the content.
Drag and Drop