DotNetKicks.com : Stories kicked by alkampfer

create a report in excel 2007 with open xml sdk 1.0

Fri, 28 Nov 2008 09:08:53 GMT

With few lines of code you can create cool report in excel 2007 thanks to linq to xml and open xml sdk.

How to add filter support to basic BindingList<T>

Sat, 22 Nov 2008 11:16:50 GMT

This post shows a possible implementation of a BindingList<T> that support Filtering.

jQuery Intellisense in VS 2008 - ScottGu's Blog

Fri, 21 Nov 2008 16:31:20 GMT

Last month I blogged about how Microsoft is extending support for jQuery. Over the last few weeks we've been working with the jQuery team to add great jQuery intellisense support within Visual Studio 2008 and Visual Web Developer 2008 Express (which is free). This is now available to download and use.

Missing RemovedItem from BindingList and BindingSource

Tue, 18 Nov 2008 11:40:04 GMT

The BindingList<T> misses a RemovingItem event, you can add it simply inheriting from it to have a better binding.

Validate html input with linq2xqm

Mon, 17 Nov 2008 17:49:01 GMT

If you have HTML user input and you wants to render only some permitted tags, removing all unwanted tags (such as <script> tag to avoid cross site scripting) you can use linq2xml to actually parse the html fragment.

Three level master detail binding with wpf

Sun, 09 Nov 2008 09:37:36 GMT

WPF permits you to create a three level master detail binding with no procedural code, only using XAML

Silverlight: simulate a 'Windows' desktop app. 3 (Resizable Window)

Sat, 08 Nov 2008 09:54:15 GMT

A set of controls which allow the simulation of a Windows Forms application in a Silverlight environment. The form content can be defined at runtime, the window template is completely customizable; each window can be created declaratively or by code and has complete support for dragging and resizing; new features added: template revised, resizing from any side and corners, autoscroll if the content is wider than the window itself.

Silverlight Plug-in and the Height Percentage problem in Firefox

Thu, 06 Nov 2008 13:02:14 GMT

... I added a small Silverlight application to an existing and styled website, the app was surrounded by the usual <div>. In IE7 all gone well but in FF the Silverlight application appeared to be completely collapsed and not visible at all. After some research I found the the problem is in the way Firefox renders the <object> tag when it's height is relative (that is it's a percentage). Since none of the containers around the Silverlight <object> tag had a Height defined Firefox assumed to use 0. Here's a workaround...

Live logging with WCF and log4Net

Wed, 05 Nov 2008 08:26:21 GMT

In this post I show how to build a custom appender for log4net to do live logging with WCF.

Microsoft kills Linq to SQL

Fri, 31 Oct 2008 09:01:13 GMT

Ayende (aka Oren) expresses disbelief at Microsoft's decision to effectively kill off LINQ to SQL.

Using fluent interface to express constraint on a database query

Tue, 28 Oct 2008 12:27:07 GMT

Fluent interface makes it possible to create simple assertion against data in database.

NHibernate how to control Delete Rule and Update Rule in a foreign key

Sat, 25 Oct 2008 08:55:54 GMT

If in your project you let NHibernate generate the database from the information you provide with the schema mappings (a thing extremely useful, especially for testing cause you can build up the database in engines like SQLite), sometimes you may need to control some attribute in a foreign key of a table...

How to report a bug, the importance of details and reproducibility

Mon, 20 Oct 2008 15:34:54 GMT

Some rules on "how to track a bug" in your bug tracking system to helps developers correcting bugs quickly

Deep Clone of a business object: the quick and dirty way

Sat, 18 Oct 2008 11:17:27 GMT

...I needed a quick and dirty way to do the deep clone of an object, since my entity classes are shared between WCF, WPF and Silverlight (yes I'm one of the guys so crazy to build multi-target applications) I needed a method that could work in all the environments...

Controls inside ScrollViewer - horizontal resize layout bug and workar

Thu, 16 Oct 2008 14:37:49 GMT

...I realized a simple test form with a series of textboxes inside a scrollviewer. During the horizontal resize operation I encountered a very strange behavior: only the first textbox changed its width according to the new windows size.while all the others retained their previous value; when you start a vertical resize operation all the textboxes were redrawn with the correct width...

Problem with JSon serialization of Date in microsoft ajax.net

Thu, 16 Oct 2008 12:26:21 GMT

The Json serializer of the microsoft ajax can give you problems when you pass date value to webservice methods becuse it adjust to UTC, here I present a simple solution to the problem.

Invoking a Java/AXIS Web Service from .NET: the 'return null' issue

Wed, 15 Oct 2008 13:57:42 GMT

When you try invoke a Java/Axis Web Service from a proxy class generated by Visual Studio 2005 or Visual Studio 2008 you often crash against the 'return null' issue...

The importance of infrastructure code

Tue, 14 Oct 2008 18:43:09 GMT

Writing good infrastructure code can make your life easier, and it permits to write simple code less error prone.

Expression Tree vs reflection, the LCG approach

Thu, 09 Oct 2008 08:06:08 GMT

You can use both Expression Tree or Lightweight code generation to gain fatster method invocation respect using plain Reflection. In this post I show both Expression Tree and LCG approach.

Silverlight: Dropdown Menu Control

Tue, 07 Oct 2008 13:29:56 GMT

In a previous post I showed how we can build a simple menu control for Silverlight 2 Beta 2 (Silverlight: how to build a simple menu control); then with the release of Silverlight RC0 some things were changed and the menu stopped working, due to how events are handled for disabled controls (Silverlight 2 RC0 - first problems due to undocumented breaking changes on disabled controls). The only way to overcome these problems was to completely rewrite the control...

Faster inovke methods of unknown objects with expression tree

Mon, 06 Oct 2008 16:01:00 GMT

Expression Trees can be used to avoid Reflection poor performance as showed in last post, here I show an helper class that makes using Expression Trees reflection a breeze.

Expression Tree vs Reflection.

Mon, 06 Oct 2008 11:46:11 GMT

Expression Trees can be used to avoid Reflection poor performance when you need to invoke methods in object that you deos not know at runtime. In this post I show you how you can access to property of objects building and compiling an expression tree.

Silverlight: simulate a 'Windows' desktop application - part 2

Tue, 30 Sep 2008 14:42:47 GMT

With the release of Silverlight RC0 it was finally time to update this sample application. Let's now go on with the tutorial and take a look at how the dragging capability of the Window is implemented, you can state if you want to enable or disable the dragging feature for an instance of the control simply by setting the 'DraggingEnabled' property.

TEst and database

Tue, 30 Sep 2008 14:14:04 GMT

Testing and database are two world that does not fit well togheter.

Store log information in database with Log4Net

Thu, 25 Sep 2008 12:59:11 GMT

Storing log info in database is a really better solution than using standard log files.