The .NET Knowledge Sharing Thread

[Raithlin]

Nice thread. My first contribution, for those ASP.Net developers that want controls AND the jQuery UI...
Dot Net JQuery

DNJ is a .NET framework that provide advanced AJAX WebControls and features :

* JSON-RPC : Call server side .Net functions from Javascript.
* Ajax extender : Ajaxify your existing .Net controls like the ASP.Net UpdatePanel does, but in a more customisable way
* Advanced pure AJAX WebControls : DNJ integrates all jQuery UI widgets in Visual studio toolbox and allow you to customise them in VS designer.

Please visit http://www.codeproject.com/KB/aspnet/dotnetjquery.aspx for quick documentation

[Raithlin]

Got Windows 7 and want to know what's new for developers?

Windows 7 : New Features Explained Using .NET

New features like Jumplist, Taskbar Progressbar, Tabbed Thumbnail, Icon Overlays, Application Restart Data Recovery, Network Management, Power Management, Task dialog, Sensor API etc explained with simple demo applications

[dequadin]

Web Development

• AjaxLoad <- For all your loading images' needs
• Dot Net JQuery
• ASP.Net for PHP Developers

[dequadin]

Language Specific

• Why do initializers run in the opposite order as constructors?
• Lambda, Lambda, Lambda - Uncovering the Mystery Behind Lambda Expressions

[Raithlin]

ASP.Net for PHP Developers

This tutorial, for PHP developers, will provide you with an introduction to ASP.NET using the C# language. If you've wondered what ASP.NET is about, this tutorial will strive to answer at least some of your questions. Even if you're an ardent open-source fan, ASP.NET contains some techniques and features that are useful to know about. And, as some might say, it's good to know your enemy!

[Raithlin]

Developing Usable .Net Components

When building an application, developers often face the decision of either writing functionality themselves or look to a third party component to get the job done in a timely manner. In the case of the latter, a well-designed component can greatly enhance a developer's productivity. If you write components, you have an obligation to ensure your components are well-designed, easy to deploy, and above all, easy to use.

[FarligOpptreden]

Developing Usable .Net Components

Writing components is a noble undertaking.

Indeed it is, but I love doing it!

[Raithlin]

StateManagement Suggestions : A Beginners View

There are many ways that we can transfer the values from one page to another. Many beginners do not know about it. So this is the short attempt to give idea about the state management technique to them.

[Fuma]

I found this very useful .Net terminology

[Kellros]

Interesting stuff guys, I'd like to add to this thread a little bit atleast:
Extension Methods
Gotta love extension methods, even something as simple as:

public static class SqlDataReaderExtentensions
{
public static object GetNullable(this string input)
{ return string.IsNullOrWhiteSpace(input) ? (object)DBNull.Value : input; }
}

Although, just because it's easy to create extension methods doesn't imply that the functionality provided is simplistic as well!

Here's an extension method I use to perform a deep clone:

Generic Deep Cloning

public static T Clone<T>(this T obj)
{
BinaryFormatter bf = new BinaryFormatter();
bf.SurrogateSelector = new DeepCloneSurrogateSelector();
MemoryStream ms = new MemoryStream();
bf.Serialize(ms, obj);
ms.Position = 0;
return (T)bf.Deserialize(ms);
}

PS. Sorry about the bad indentation, but the html indentation from the the wysiwyg editor is creating unneccesary line spacing which makes it annoying to read the code.

So get going with extension methods if you haven't tried them out yet!

I might post something later regarding Code Snippets for use with Visual Studio, ADIOS!

[Raithlin]

With Extension Methods in mind, I have this thread as a favourite on StackOverflow:
What are your favorite extension methods for C#?

Some beauts in there.

[SUPERMAN89]

YOH PEOPLE thank you so much! Really needed information

[mezu]

My first share, so be nice

http://extensionmethod.net/Default.aspx

lots of extension methods to discover and share.

[jxharding]

The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).

This error occurs when using javascript to access control with e.g. $find("<%= Control.ClientID %>"), together with RadAjaxPanel, in a Master/Client page setup in asp.net


One solution is to put the script in a body tag,
http://www.telerik.com/community/for...i-e-lt-gt.aspx

BUT
You cant use body in a Contentplaceholder
http://www.dotnetspider.com/forum/25...body-tags.aspx



All the solutions refer to only being able to fix the problem by starting the code block with <%# instead of <%=
http://leedumond.com/blog/the-contro...s-code-blocks/
but this does not help if you have $find("<%= Control.ClientID %>") , which refers to a control.
Also, you can try : in master page load event : Page.Header.DataBind()


ive also tried to rather user
var oConatctName = document.getElementById('EtxtContactName').value;
than
var oConatctName = document.getElementById('<%#EtxtContactName.Client ID%>').value;
but it does not work


turns out i just had to put the javascript into a RadCodeBlock
http://www.telerik.com/help/aspnet-a...codeblock.html

[jxharding]

when moving crystal reports from e.g. dev environment to deployment environment,
you need to update the datasource location

when you create a new connection string, dont ever use SQL NATIVE CLIENT.
it'll bomb you out like you wont believe

Use MICROSOFT OLE DB Provider for SQL SERVER