Amazon.com Widgets All posts tagged 'ntier'

WilliaBlog.Net

I dream in code

About the author

Robert Williams is an internet application developer for the Salem Web Network.
E-mail me Send mail
Code Project Associate Logo
Go Daddy Deal of the Week: 30% off your order at GoDaddy.com! Offer expires 11/6/12

Recent comments

Archive

Authors

Tags

Disclaimer

The opinions expressed herein are my own personal opinions and do not represent my employer's view in anyway.


Accessing Global Resource Files from a Class Library in ASP.NET

If you add an App_GlobalResources Folder to your asp.net 2.0 web application you may want to access some of the values within it from a class library - such as a Business Logic Layer (BLL). Since there is unlikely to be a reference from your BLL to the main site, and even if there were, the designer class that shadows the resource file is declared with "Friend" keywords so that class would not be visible to the BLL. Therefore trying to call it using the Resources.[Filename].[key] syntax that works from anywhere within the site will not work. Instead you can simply create a wrapper like the following somwhere within your class library:

    1 Imports System.Resources

    2 Imports System.Web

    3 

    4 Namespace Resources

    5     Public Class ResourceWrapper

    6 

    7         Public Shared Function Strings1(ByVal key As String) As String

    8             Return HttpContext.GetGlobalResourceObject("Strings1", key)

    9         End Function

   10 

   11         Public Shared Function Strings2(ByVal key As String) As String

   12             Return HttpContext.GetGlobalResourceObject("Strings2", key)

   13         End Function

   14 

   15         Public Shared Function Strings3(ByVal key As String) As String

   16             Return HttpContext.GetGlobalResourceObject("Strings3", key)

   17         End Function

   18 

   19     End Class

   20 End Namespace

 

Then you can retrieve values from the resource files from within your class library simply by passing in the key you want to retrieve:

 

   Resources.ResourceWrapper.Strings1("SupportEmail")

 

This example assumes that you have created three .resx resource files inside the App_GlobalResources folder of an ASP.Net Web Application, and that you created them within Visual Studio (as opposed to a text editor for example), and that you named the files "Strings1.resx", "Strings2.resx" and "Strings3.resx", and that Strings1.resx contains the key "SupportEmail".

 

The Great thing about adding .resx files in this fashion is that you can actually edit the values in a text editor on the live site without having to recompile and republish your entire project. Having said that, adding new key value pairs in the text editor will not create the properties in the class that shadows it, and removing or renaming existig key value pairs could cause runtime errors so if you need to do anything other than change the value of an existing key, do so within visual studio and republish.


Posted by Williarob on Thursday, November 20, 2008 6:06 PM
Permalink | Comments (0) | Post RSSRSS comment feed