Minifying HTML With ASP.NET MVC And Razor

Hi,

I read nice article with cool solution for Minifying HTML With ASP.NET MVC And Razor.

You can read more here.

You can start use it in you MVC projects, for 25% smaller HTML pages.

firefox not executing javascript on back button

Hi,

firefox has a cache behavior that uses in-memory caching for entire Web pages, including their JavaScript states, for a single browser session.

This can cause to unexpected javascript and HTML behavior when pressing on the browser back button.

For example:

1. PageLoad will not fired
2. javascript code will not executed
3. DHTML that was created by JavaScript will be shown

and more...

In case firefox cache is something you want to prevent, Below are some common programmatic reasons that a page will not be cached by firefox:

Code example for prevent page caching on firefox:

window.addEventListener('pageshow', PageShowHandler, false);
window.addEventListener('unload', UnloadHandler, false);

function PageShowHandler() {
window.addEventListener('unload', UnloadHandler, false);
}

function UnloadHandler() {
window.removeEventListener('unload', UnloadHandler, false);
}

You can read more here.

Rotem

ASP.NET MVC Razor CSS and Javascript Compress and Manager

Hi,

If you are ASP.NET MVC Razor developer and you are looking for a nice solution to Combine, Compress and Manage your CSS and JavaScript files,

Well SquishIt can fit your needs.

Razor Code Sample:

@MvcHtmlString.Create(
  SquishIt.Framework.Bundle.Css()
    .Add("~/media/css/reset.css")
    .Add("~/media/css/style.less")
    .Add("~/media/css/handheld.css")
    .Render("~/media/css/combined_#.css"))

@MvcHtmlString.Create(
  SquishIt.Framework.Bundle.JavaScript()
    .Add("~/media/js/geo.js")
    .Add("~/media/js/jquery-1.4.4.js")
    .Add("~/media/js/jquery.unobtrusive-ajax.js")
    .Add("~/media/js/jquery.validate.js")
    .Add("~/media/js/jquery.validate.unobtrusive.js")
    .Render("~/media/js/combined_#.js"))

Output looks like this:

האתר של ארטיזון עלה לאוויר בטכנולוגית ASP.NET MVC 3.0

ASP.NET MVC 3.0 jquery unobtrusive ajax Failed on IE 8

Hi All,

I'v notice a strange behavior when working with ASP.NET MVC 3.0 jquery unobtrusive ajax on forms HTML element on IE (internet explorer) 8.

Razor code example for generating ajax call on a form element using unobtrusive ajax: @using (Ajax.BeginForm("MyAction", "MyController",  new AjaxOptions { HttpMethod = "POST" })){

Sometimes (not always) i'm getting a javascript error with the message "Falied" that come from the javascript file jquery.unobtrusive-ajax.js:

The line is:

$("form[data-ajax=true] :submit").live("click", function (evt) {

Well the only solution I can find is to modify jquery.unobtrusive-ajax.js code with the following code:

$("form[data-ajax=true]").find("submit").live("click", function (evt) {

This fix the javascript error and the ajax call works always on IE 8.

Until now I can explain why the error happened only on IE 8 and was not reproduce permanently on each page refresh.

If it happened to you, I would be happy to know if you find other solution to this strange problem.

Rotem

How to decide which WCF binding to choose??!!

Hi,

I decided to share a nice diagram that can help you decide which WCF binding you should choose for your application or SOA architecture.

(If you can see the entire image you can download it using right click and "Save Picture As...")

ארטיזון עושים האחים בלוז

חברת ארטיזון מגייסת עובדים

שאלה לתותחי SQL ו-DATABASE

Jquery TreeView with RTL support

Hi All,

Well after month of silent (7 I think) I got back with a new post on Jquery TreeView.

First you can download the plugin from here. I must say this plugin is amazing very fast even with large trees.

The problem of Jquery TreeView is the lack of RTL (Right To Left) support for languages like: Hebrew, Arabic etc...

If you got the same problem I have and you need Jquery TreeView RTL version you can download it from my blog right here.

To the AJAX fans I also add a nice cool ajax application example you can download it from here.

Hope it helps

Cheers

Rotem

Unlocker the tool that must for developers

Hi,

Have you ever bump into messeges like:

• Cannot delete file: Access is denied
• There has been a sharing violation.
• The source or destination file may be in use.
• The file is in use by another program or user.
• Make sure the disk is not full or write-protected and that the file is not currently in use.

Well when such cases happeneds you really want to know which application lock your Files or Folders.

The Unlocker is the solution for you.

Just look for "unlocker" in Google or Bing or you can download it from here.

Bye Rotem

How to find and reproduce bugs in multi thread applications - CHESS is to tool you must use!!!

Hi All,

If you want to test and reproduce multi thread applications bugs there is a new tool from Microsft called: CHESS.

CHESS is a tool for finding and reproducing Heisenbugs in concurrent programs. CHESS repeatedly runs a concurrent test ensuring that every run takes a different interleaving. If an interleaving results in an error, CHESS can reproduce the interleaving for improved debugging. CHESS is available for both managed and native programs.

Great movie that explain CHESS: An Automated Concurrency Testing Tool

You must adopt this tool for your future multi threaded (concurrent programs) programs.

More information on Threading in C# can be found on Joseph Albahari great article here.

Expert Days 2010 יוצא לדרך שווה ללכת

Sending .NET configuration section over the wire using WCF

Hi,

Have you ever needed to implement configuration sections for the application configuration file? Well probably you have.

Let's say you want to read the configuration section from your *.config file and send it thru WCF service. The default behavior when working with configuration object is use the System.Configuration namespace that doesn't support WCF.

So the question is what can we do?

A nice solution is to use the IConfigurationSectionHandler interface and mark the section implementation as a DataContract.

It will be something like:

Now we can use the ConfigurationManager to get our configuration object that can also be send over the wire using WCF.

MyConfigurationSectionHandler section = (MyConfigurationSectionHandler)ConfigurationManager.GetSection("MyConfigurationSectionHandler");

I also add small application as an example you can download from here.

Enjoy :-)

Rotem

Insert and Update pattern for multiple threads application with SQL Server

Hi, 

Have you ever try to insert a row in to a SQL table if the key does not exist and update a row if a key exists. Well this is very common scenario.

Usually you would achieve this goal by writing SQL like:

if exists (select * from TestTable where ID = @id)

    update TestTable set myCount = myCount+1  where ID = @id

  insert into TestTable values (@id, 1)

This code will work fine for single threaded applications but will not work for multiple threads application. To solve this issue you need to handle primary key violations and fix up the transactional integrity of the batch.

 So now let's see the solutions:

Option 1:

if exists (select * from TestTable with (updlock,serializable) where ID = @id)

begin

  update TestTable set myCount = myCount+1 where ID = @id

  insert TestTable (ID, myCount) values (@id, 1)

commit tran

Option 2:

begin

  insert TestTable (ID, myCount) values (@id,1)

commit tran

That's all.

Enjoy Rotem