Hotfix For Asp.net Browser Definition Files In .net 4.0
ASP.net development is widely preferred for building dynamic web applications
, web services and websites. ASP.net developers get numerous benefits from this technology which is commercialised by Microsoft like compilation of server side code to one or more DLL files on web server. Here in this article we will discuss some issues commonly faced by ASP.net developers and for its solution a hotfix can be used. Let us see in details.
ASP.net development allows asp.net developers to develop web based applications, e-commerce website development, shopping cart development, desktop application development and much more. So for accomplishing all these developments successfully a hotfix should be applied that allows asp.net developers to get updated definitions in the browser definition files for internet explorer and for Mozilla Firefox from it.
In order to apply this hotfix asp.net developer need to install .net framework 4. This hotfix does not replace any previously-released hotfix. This hotfixs English version includes file attributes. Asp.net developers need to restart the computer in case if any affected files are being used while installing it after applying this hotfix. If in case you want to avoid the restarting of the computer then you need to shut down all web server applications for ASP.net websites before the hotfix is applied.
Common issues that occur while ASP.net development if this hotfix is not used are:
Issue 1: considering the scenarios like:
* You use Windows Internet Explorer 10 to access an ASP.NET-based webpage.
* The webpage starts a postback.
The postback fails in this scenario and you land up with an error message like Script Error encountered", "'__doPostBack' is undefined.
Issue 2: Considering next scenario as:
* You create an ASP.NET-based webpage that has the MaintainScrollPositionOnPostBack attribute set to true.
* You use Mozilla Firefox 4.0 or a later version of Mozilla Firefox to open the webpage.
* The webpage starts a postback.
During this scenario the scroll position of the webpage is not maintained after postback.
Updated definitions in the browser definition files for internet explorer and for Mozilla Firefox are introduced by this hotfix. The files are stored in following either of one folders depending on the installed version of .net framework.
For 32-bit versions of the .NET Framework 4.0
%WinDir%Microsoft.NETFrameworkv4.0.30319CONFIGBrowsers
For 64-bit versions of the .NET Framework 4.0
%WinDir%Microsoft.NETFramework64v4.0.30319CONFIGBrowsers
ASP.net uses sniffing technology by default for user agent string to detect browsers. These files cover certain version of browsers however as the numbers increase the new versions of a browser is not recognised by ASP.net with the use of user agent string. Well during this case ASP.net might handle these versions as an unknown browser.
Latest services that clients choose to outsource ASP.net development are software development, ASP.net 3.5 framework development, ASP.net web portal development and much more. Those who require only application development can also get it done with outsource ASP.net development from high quality services provider.
Again getting back to with ASP.net development Microsoft offers a supported hotfix as well but it is intended to correct only the problem that is described here. It is advisable to apply this hotfix only to the systems that experiences problems described above. It might receive additional testing. If the problem is not severe it is recommended to wait for the next software update containing this hotfix.
by: Dylan Rodriguez
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