Thomas Huber

The Lottery-Console-Application used at the last WPF-Event @ Microsoft Usergroup Switzerland

.NET Rocker » TrivadisContent — Mon, 25 Aug 2008 10:30:34 GMT

Last week we had a great WPF-afterwork-event at Microsoft Usergroup Switzerland (MSUGS) sponsored by Trivadis. I gave a deep-dive session about developing custom controls using WPF with many of it’s features like Dependency Properties, Commands...(read more)

Developing Multicolumn-DropDown/DropDownList with ASP.NET, the GridView and the AJAX Control Toolkit

.NET Rocker » TrivadisContent — Thu, 31 Jul 2008 13:22:57 GMT

During the last months I was developing an ASP.NET application and I needed a dropdownlist to display multiple columns in each item. Everyone with a little knowledge in Web-development knows, that HTML doesn’t contain built-in support for multicolumn...(read more)

WPF-book is now available in stores, maybe you win a free one @MSUGS

.NET Rocker » TrivadisContent — Mon, 30 Jun 2008 22:10:37 GMT

Since last week my German WPF-book is available in stores. You find more details about the book and some snippets of chapter 1 and chapter 14 on Galileo Computing. You can order the book on the Galileo Comuting-Website or on amazon.de and other stores...(read more)

Print of WPF-book will start next week

.NET Rocker » TrivadisContent — Sat, 31 May 2008 17:15:55 GMT

As I promised in my last post, here are some infos about my nearly finished book project: Last weekend I made checks on the first galley proof of my german WPF-book. Yesterday I got the second galley proof, the corrected one. The second galley proof I’ve...(read more)

Got the MCTS: .NET Framework 3.5, Windows Presentation Foundation

.NET Rocker » TrivadisContent — Sun, 18 May 2008 16:27:05 GMT

Last Thursday I took the exam for the Microsoft Certified Technology Specialist .NET Framework 3.5, Windows Presentation Foundation. The exam is brand new and covers a wide spectrum of WPF. Im not sure, if asking Multiple-choice-questions is a good thing...(read more)

UIAutomation to open ComboBox from Code

.NET Rocker » TrivadisContent — Sun, 18 May 2008 16:07:16 GMT

In WPF there’s an Automation Framework called UIAutomation. This Framework can be used to control UIElements from code. This can be useful for different scenarios: Provide the user additional help Control a programm by another programm Test applications...(read more)

WPF Multi-Layer Business Application for Download

.NET Rocker » TrivadisContent — Fri, 16 May 2008 21:24:09 GMT

Tomorrow Karl Shifflett is giving a Code Camp session in Charlotte. Unfortunately it’s too far away for me to participate. Today Karl has posted a really great WPF Multi-Layer Business Application that can be downloaded from his blog. Check it out...(read more)

LostFocus (TextBox) vs. Buttons IsDefault-Property

.NET Rocker » TrivadisContent — Fri, 02 May 2008 09:52:36 GMT

If you bind the Text-Property of a TextBox to something, the "something" is updated when the TextBox loses focus. This is the Default-UpdateSourceTrigger defined in the Metadata for the TextBox.TextProperty. In a Data Binding you can specify another...(read more)

The dream of "half-automatic" Automation Properties

.NET Rocker » TrivadisContent — Fri, 02 May 2008 09:12:44 GMT

Everyone who has worked with WPF knows the interface INotifyPropertyChanged. It only defines the PropertyChanged-event, that should be called when a property’s value has been changed. The PropertyChanged-event is used by WPF’s Data Binding...(read more)

Vista’s SaveFileDialog and OpenFileDialog in WPF

.NET Rocker » TrivadisContent — Sat, 12 Apr 2008 00:05:34 GMT

Windows Vista contains new Win32-Dialogs to save and open a file. There are also the old dialogs from XP available. Windows Presentation Foundation has two wrapper-classes for Win32-Dialogs. The Microsoft.Win32-Namespace contains a SaveFileDialog- and...(read more)

Take Snapshots PART II - Save as animated GIF

.NET Rocker » TrivadisContent — Wed, 09 Apr 2008 21:31:35 GMT

I was asked, if it would be possible to save the snapshots created in my last post as an animated gif. With a DispatcherTimer and the GifBitmapEncoder-class you’re not far away from it. Just create a MediaElement in your Window: <MediaElement...(read more)

Take Snapshots of Videos with WPF

.NET Rocker » TrivadisContent — Sun, 06 Apr 2008 11:14:59 GMT

With WPF’s Imaging-Classes you can take snapshots of any Visual. The snapshot can be saved in any common Image-Format, like e.g. JPG. Let’s take a look at a pretty short example, that shows how easy this can be done. The example takes snapshots...(read more)

Dependency Properties - Value Precendence

.NET Rocker » TrivadisContent — Thu, 13 Mar 2008 16:02:10 GMT

The value of a Dependency Properties in WPF can be set from many sources: Templates, Styles, Data Binding, Animation, Local, Inherited from Element Tree,… That’s the reason why they are called "Dependency" Properties. Their values...(read more)

Built-in DataGrid for WPF is planned

.NET Rocker » TrivadisContent — Fri, 22 Feb 2008 23:36:40 GMT

Yes, they are planning to release it. Really great news. Today there’s no DataGrid for WPF-applications as part of .NET Framework 3.5. There are only third-party controls like the Grid from Xceed or Infragistics. Have you ever built a business application...(read more)

Kick it like Beckham with WPF Animations

.NET Rocker » TrivadisContent — Thu, 21 Feb 2008 07:31:52 GMT

I’m just finishing the Animation-Chapter of my German-speaking WPF book (WPF-Buch erscheint im Juni 2008). I had a hard time to find a good idea how to show the reader animations in a really "non-boring", but easy way. And I think I’ve...(read more)