partial trust WPF app

Hello,

We do fully support WPF partial trust browser applications in V1 of WPF. These are precisely WPF Xaml Browser Applications (XBAPs). XBAPs receive internet permissions by default, and are granted WebPermission back to the site-of-origin server. Can you tell me more about the application you are building? Do you try to access something from a server outside the originating domain of the XBAP?

I recommend you check out this link.

http://msdn2.microsoft.com/en-us/library/aa970910.aspx

Thanks,

Jennifer

JenniferLee--MSFT at 2007-10-3 >

.NET 3.0 supports partial trust now ... no cert is required. only full trust XBAP apps require a cert.

for .NET 3.5, the only partial trust change I know about is that WCF client calls will work in partial trust (they dont in .NET 3.0). right now, if you have a partial trust XBAP app, then it has to use an ASP.NET client proxy to call a web service ... it cant use a WCF client proxy. but .NET 3.5 will change it so that you can use a WCF client proxy in a partial trust XBAP app.

it would help if you posted the xaml parser exception you are getting.

Thanks,

casey

kcchesnut at 2007-10-3 >

> I realize partial trusted apps are supported in 3.0, but simple database calls throw security exceptions.

A partial trust app cannot make a direct Connection to a database. That will not work in .NET 3.0 or .NET 3.5.

It has to use a Web Service call to get the data, and the Web Service will make the Connection to the database. Also, the WebService has to be hosted at the same domain the XBAP was served from. to emulate this when you are debugging in VS.NET, your command line arguments for debugging should look something like this :

-debug "C:\DEV\your.xbap" -DebugSecurityZoneURL “http://DomainWhereTheWebServiceIs/”

That will make it look like the XBAP was served from 'DomainWhereTheWebServiceIs', and then it can make calls to that web service, because they have the same SiteOfOrigin.

e.g. if your XBAP is ultimately hosted at http://domain/your.xbap, then it can make a web service call to http://domain/YourWebService.asmx

casey

kcchesnut at 2007-10-3 >

Thank you for the response Chango. I've tried making the changes, but it still doesn't work. Do you still have the code referenced from this post? http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1436424&SiteID=1. If so could you make it available for me to download? At this point I'd be happy to see any example were this works. Thanks again!

Eric.R. at 2007-10-3 >