Trying to Programmatically Expire the HTTP Response Headers - silverlight

Question

Our Team is building a C# project with a Silverlight module. We deploy to a Windows 2008 with IIS 7. I’m trying to Programmatically Expire the HTTP Response Headers Associated with a Folder called ClientBin immediately. I know how to do it manually through IIS Manager. ( Basically, I go to the HTTP Response Headers Section of the folder or file that is of interest, and then I use "Set Common Headers...." to expire immediately.) However, we will be Redeploying to IIS a number of times, and I want to ensure that it is programmatically done because it’s a headache to keep Reconfiguring all the time.
Should I do it from the C# code of my project or is it better practice to do it using WMI scripting?

Answer 1

#kev and #jeff-cuscutis have provided the ways to configure expiration of the HTTP Response Headers using XML configuration in the web.config file of a ASP.NET application
How to configure static content cache per folder and extension in IIS7?
ou can set specific cache-headers for a whole folder in either your root web.config:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<!-- Note the use of the 'location' tag to specify which
folder this applies to-->
<location path="images">
<system.webServer>
<staticContent>
<clientCache cacheControlMode="UseMaxAge" cacheControlMaxAge="00:00:15" />
</staticContent>
</system.webServer>
</location>
</configuration>
Or you can specify these in a web.config file in the content folder:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<staticContent>
<clientCache cacheControlMode="UseMaxAge" cacheControlMaxAge="00:00:15" />
</staticContent>
</system.webServer>
</configuration>
I'm not aware of a built in mechanism to target specific file types.
You can do it on a per file basis. Use the path attribute to include the filename
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<location path="YourFileNameHere.xml">
<system.webServer>
<staticContent>
<clientCache cacheControlMode="DisableCache" />
</staticContent>
</system.webServer>
</location>
</configuration>