when you go in the web development and develop many websites, it is very essential to test your website in more than one browser like IE , Firefox, Chrome and many other browsers with different versions, So Microsoft introduce tool called Expression Web SuperPreview to make the web developer’s life easier. in this post i will copy some words from my searching to introduce more about this great tool

From this link http://www.microsoft.com/download/en/details.aspx?id=2020 you can download the tool

“Expression Web SuperPreview speeds the essential task of debugging your web sites for cross-browser compatibility. With Expression Web SuperPreview, you don’t need a web service to debug your pages on the same machine that you use for development.

Expression Web SuperPreview is a standalone visual debugging tool for cross-browser testing. With Expression Web SuperPreview, you can ensure that your Web sites work correctly in today’s popular web browsers.

Expression Web SuperPreview shows your web pages rendered in all versions of Internet Explorer. It also includes support for rendering in Firefox for Windows. Additional browser support is provided through the online service beta, which currently includes Chrome, Safari for Mac, Firefox, Internet Explorer 8, and Internet Explorer 9. You can view the pages side by side or as an onion-skin overlay and use rulers, guides and zoom/pan tools to precisely identify differences in layout. You can even compare your page comp to how the targeted browsers render the page.

Expression Web SuperPreview not only shows a high-fidelity rendering of how pages will look on different browsers, it also identifies the element’s tag, size and position, applied styles, and location in the DOM (Document Object Model) tree so you can quickly fix the error”

you can check the following link to read more and more about this tool

in this post, I won’t write any new information. I only want to share this article with you I already tweet it but I think it is very useful so have look on it and you will download many tools which will help you in development ASP.Net websites.

 http://stephenwalther.com/blog/archive/2010/11/22/10-essential-tools-for-building-asp-net-websites.aspx

1. using RSA public key encryption. This type of encryption allows the export and import of keys which is useful when the solution is deployed in distributed fashion such as web farm

i implement this method to enable you to encrypt connection string section

         public  void  EncryptConnectionString()

         {

             Configuration  configuration = WebConfigurationManager .OpenWebConfiguration("~" );

             ConfigurationSection  configurationSection = configuration.GetSection("connectionstrings" );

             if (configurationSection != null  && !configurationSection.SectionInformation.IsLocked && !configurationSection.SectionInformation.IsProtected

                 && !configurationSection.IsReadOnly())

             {

                 configurationSection.SectionInformation.ProtectSection("RsaProtectedConfigurationProvider" );

                 configurationSection.SectionInformation.ForceSave = true ;

                 configuration.Save(ConfigurationSaveMode .Full);

             }

             else 

             {

                 if  (configurationSection != null )

                 {

                     configurationSection.SectionInformation.UnprotectSection();

                     configurationSection.SectionInformation.ForceSave = true ;

                 }

                 configuration.Save(ConfigurationSaveMode .Full);

             }

         }

Encryption and decryption is performed using the Windows Data Protection API  (DPAPI). Because

DPAPI does not allow the exporting of keys, this provider  should be used in situations where

the deployed solution is limited to a single  server.

if you want to encrypt any section of configuration file in non- programmatic way. Doing this

means that the configuration section can be encrypted before use and  then, as suggested

earlier, it is decrypted transparently at run time only for  use by the server. This can all

be achieved at the command prompt using the  Aspnet_regiis utility.

Keep, this in your mind ...> It should be noted that the encryption of configuration sections

can cause  problems. If the section is encrypted using DataProtectionConfigurationProvider and

the config file is  moved to a different machine, this new location cannot decrypt the value. With  RSAProtectedConfigurationProvider, however, the key can be  exported to a different machine along with the configuration file; this means  decryption can take place using the same exported key.