My new Windows Phone 7 app "WeekCal" provides different calendar views. There are actually two week views and a month view. In the settings, the user can set the view to start with. To start the app with the view the user has choosen, there are two steps necessary. First step is to select the...

I'm involved in a project that needs a web frontend and clients for iPhone, Androide and of course WindowsPhone. Using a framework like PhoneGap is definitly a good point to start. In a later post I will write about how this all ended up. In this post I will focus on one of my first tasks, building...

We all know the SupportedOrientations property on a windows phone page. Just set the value to Portrait and your App will only support the portrait orientation mode. Set it to Landscape and your App will only support the landscape orientation mode. Set it to PortraitOrLandscape and both are supported...

To build an image button in WPF or Silverlight is a commen task. Also in Windows Phone 7 but here we have an additional problem, the themes. The basics I found in this nice article. What's not handled there is the themes. In the dark theme everything works fine but in the light theme the button is...

Already in one of my last posts I blogged about the ShellTileSchedule class. I love the simplicity of this class and still use it in my Shortcuts App you can get here . After a complete re-design of the App, I did a lot of testing and found an interesting bug. My App did not refresh webcam images on...

Now I have five Apps in the Marketplace. One thing every App needs is an About Page. If you give the customer an About Page it looks just more professional and the buttons to rate the App or navigate to your other Apps should give you as a developer an advantage. Copy&Paste was my first approache...

Shortcuts are often very helpfull. Specially on a slow device like my iPhone 3GS, it would be very helpful to have some shortcuts to make a call, send a sms or toggle airplane mode on and off instead to tap thru all this menues. If I hopefully get my Nokia Lumia 900 soon, I do not want to miss this functionality...

Beside the "big apps" like facebook, twitter or celsius, the application I use most on my iPhone is the shopping list. It's very helpfull not to write all the things on paper each time but just choose from a list of items I bought recently and add them with one finger movement. The list...

As I wrote in my last post my first windows phone app was a game called Simon aka Saimon or here in Switzerland better known as Senso. It's a classic brain game from the 80ies and everybody in my age will know the old version from MB I guess. The goal of the game is to repeat the color sequences...

Before I actualy start let me tell you one thing: I can't realy write something new. Everything about windows phone development is already out there. But lets start the story three weeks ago. Three weeks ago I wanted to do something new. At this time I read from @techpreacher on Twitter that Microsoft...

In my actual project I have to do the performance tuning of a Microsoft Dynamics CRM System. From a technical viewpoint this is just an ASP.NET WebForms and WCF Services application. Therefore I was looking for some tools to monitor and analyse a web application. The customer don't want to spend...

The future is mobile. At the Microsoft conference Build last month, ASP.NET MVC 4 was announced and with it the jQuery Mobile Framework . Since a few days jQuery Mobile 1.0 RC1 is released. But what is jQuery Mobile? There Website tells us: A unified user interface system across all popular mobile device...

At the Build conference Microsoft has announced the availability of ASP.NET MVC 4 Developer Preview. The following are the some of the new features of ASP.NET MVC 4 Developer Preview. ◦Enhancements to Default Project Templates ◦Mobile Project Template ◦Display Modes ◦jQuery Mobile, the View Switcher...

Last week at the Build conference in Anaheim CA lots of new announcements have been made. The big things were Windows 8, Metro Style Apps and WinRT. But also .NET 4.5, ASP.NET MVC 4 and other new stuff came up. Sadly I had to stay at home and did not get all the information from the remarkable experts...

TechDays 11 in Basel are over and we all had a great time with lot of interesting informations. On the TechDays Website you will find soon the recordings and the slides. If anybody is interested in the demo application of my Speech "Mit ASP.NET MVC zur praxistauglichen Webseite" please let...

In the dot.NET Magazin 4.2011 I wrote an article about Razor, the new view engine that comes with ASP.NET MVC 3. Therefore, it is probably obvious that I worked a lot with Razor. Despite all my work with this amazing new view engine I really love, I just discovered this week another interesting feature...

Like the title explains, I like to validate input in my Silverlight application. I want to do it with DataAnnotations and I also want my ErrorMessages to be in the language of the user. Sounds pretty easy, not? My solution has the following projects - Data project with my Entity Framework Model - Web...

Today I had to add a delete function to an old ASP.NET WebForms website. It was missing because there are a lot of relational data. So the steps to delete a record are: - Click delete button - Proof of existing relational data - Show the result to the customer (and ask what to do) - Delete all or cancel...

Today I had to fix some code of a colleague. To test the class I've fixed, there was a mock class generating random testdata. But this testdata were always the same. So I looked also at this problem and found the following code: for (int i = foo; i { return new Random().Next(); } Looks good at first...

Welcome back! After a pretty long break in blogging I'm starting over again. Trivadis gave me a good reason for it ;-) Hopefully there are coming up a lot of interesting themes in 2011. I'm sure ASP.NET MVC will be big also this year with the release of version 3. I'm doing definitely some...

Auf die Frage was ist der Unterschied zwischen new und override, im konkreten Fall für ein Property verwendet, bekommt man stehts die korrekte Antwort. New versteckt das Property in der Basisklasse, override überschreibt dieses. Gut, aber was heisst das ...read more

Meistens sind Daten in einer Datenbank normalisiert abgelegt. In der Applikation möchte man aber oft mit den nicht normalisierten Daten arbeiten. Ist das ADO.NET Entity Framework die Lösung? Jein lautet die Antwort. Und um es vorne weg zu nehmen, ein ...read more

Ein Kunde legt beim Logging unterschiedliche LogMessages (unterschiedliche Klassen) in einer Datenbank ab. Dabei werden der Typ der Message (der LogMessage Klassenname), die Message selber sowie weitere Felder in der Tabelle gespeichert. Nun sollten diese ...read more

Mit dem .NET Framework 3.5 kommen erneut etliche Features zur Sprache C# 3.0 hinzu, die dem Entwickler das Leben bedeutend erleichtern (ausser man ist auf der Wartungsseite). Automatic Properties, Extension Methods, Lambda Expressions, Anonymous Types ...read more

In einer Stored Procedure werden in einem ersten Schritt zwei Variablen gesetzt, die für die weitere Verarbeitung benötigt werden. Dies könnte so aussehen: SELECT @var1 = Var1, @var2 = Var2 FROM MyTable WHERE ID = @ID Nun muss das Statement aber dynamisch ...read more