Daniel Palme

Daniel Palme

.NET consultant from Germany.

Blog
Tag: C#

ASP.NET MVC - Generic filtering based on expressions


Feb 6

Recently I was asked to implement a reusable filtering mechanism in an ASP.NET MVC application. To be more concrete: A website shows a grid containing arbitrary data. The user should be able to enter a filter for each grid column.
The filters should be generated based on the type of the displayed objects. With that functionality, it is possible to filter every grid in the application with very little effort. Moreover I added a possibility to add custom search criteria.

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YAGNI - 'Poor-mans CQRS' sample application with Entity Framework


Nov 1

This week Daniel Lang published an interesting article about unnecessary overhead in simple applications.
In a nutshell he proposes an architecture called "Poor-mans CQRS". In his sample he uses an ASP.NET MVC application. The controllers retrieve their required data directly from the database (Query), and updates are performed in service layer (Command).
In this post I will provide a (simple) application, which is based on the Entity Framework. It shows the principle and explains how unit tests can be written without querying a real database.

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MetroBackUp - Applying Metro UI and Flow Design (Event-Based Components)


Jun 8

Four years ago I wrote one of my first WPF applications. It was named 'BackUp' and enabled you to keep directories in sync (similiar to Microsoft's SyncToy).
Actually I learned a lot of the WPF stack by creating this application, but since I did use code behind instead of the MVVM pattern, it was a good occasion for refactoring the code and applying a new UI.
In this post I will present the new Metro UI and describe my experience in using event-based components for the synchronization workflow.

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VSTO - Importing Google contacts to Outlook 2007


Feb 2

For a long time I have been using Outlook to manage my contacts and appointments. I always synchronized my mobile phone with Outlook. After buying an Android device things have changed.
Now I use Google Contacts and Google Calendar to manage my contacts and appointments. Since I still use Outlook I need an easy way to synchronize Google with Outlook. Google provides GoogleCalendarSync to synchronize your calendar, but synchronizing contacts is only available for business customers.
In this post I will provide an Outlook addin which imports your Google contacts to Outlook.

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