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.NET Forum / .NET Framework / New Users / November 2004how can my app access files even when run from web?
shi all my app is available to be run directly from the web. however, it needs to access files. when a file access is attempted, the user gets a message box from the security policy. 'the operation required the SecurityException'. is there any way that the user can allow the application access to the file? assaf This is an issue with the client's .NET CAS (Code Access Security) settings. I'm assuming your application has a strong name and is being retrieved via one-click deployment using IE. Now, you just got to get the clients to trust your application. There's a few things the client could do: 1. In IE, Tools > Internet Options, select the Security tab, select Trusted sites, then click the "Sites..." button and add your site to the list. Of course, this may/may not get rid of the error depending on the client's CAS setting for "Trusted sites" 2. Start > Programs > Administrative Tools > Microsoft Framework 1.1 Wizards, select "Trust an Assembly" and then follow the wizard's prompts to trust the application. Using this setup the client can choose to trust this application, or all applications using the same key (used to give the app a strong name). Hope that helped. -- Jason Whitted > shi all > [quoted text clipped - 10 lines] > > assaf hi jason of course this helps. but my question is: isn't it possible to just pop up a message box, asking the user to click a button thereby allowing the app to access files. isn't this the way java apps used to access files? i really dont' want to bother my clients to have to change the security settings in their IE or computer. i just want my app to ask the 'policy manager' to pop up an app and have the user OK this. i don't want to bother my clients to read through docs... i mean, all that the app is trying to do is simply write a configuratio file into the user's AppData directory. and after that open a socket for communications. why can't the app ask the policy ask the user to ok this very benign act? assaf > This is an issue with the client's .NET CAS (Code Access Security) settings. > I'm assuming your application has a strong name and is being retrieved via [quoted text clipped - 31 lines] > > > > assaf Have you considered having an installer for download as a workaround ? Or is that out-of-the-question ? O:] > hi jason > [quoted text clipped - 69 lines] > > > > > > assaf hi angelos i allow users to download and install my app. however, it is much better if the user would be able to click-run my app. i know that this is possible in java. where the user is told at app start-up, that the app wants to access files. i really hope that this feature is available in .NET. it means a world of difference to me. assaf http://www.CipherChats.Com > Have you considered having an installer for download as a workaround ? Or is > that out-of-the-question ? [quoted text clipped - 77 lines] > > > > > > > > assaf > i allow users to download and install my app. > however, it is much better if the user [quoted text clipped - 3 lines] > where the user is told at app start-up, > that the app wants to access files. I think you are saying "Java Web Start". > i really hope that this feature is available in .NET. > it means a world of difference to me. There is a "ClickOnce" Deployment in VisualStudio 2005 and Dotnet 2.0. http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnwinforms/html /clickonce.asp I think it is quite similar to "Java Web Start". Jacky Kwok jacky@alumni_DOT_cuhk_DOT_edu_DOT_hk jacky@compose_DOT_com_DOT_hk looks great. how can i get Visual Studio 2005? with out paying! i am currently using the Visual Studio 2003 evaluation version. is there a 'parallel' version for 2005? is .NET 2.0 available to the public? assaf > > i allow users to download and install my app. > > however, it is much better if the user [quoted text clipped - 10 lines] > > There is a "ClickOnce" Deployment in VisualStudio 2005 and Dotnet 2.0. http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnwinforms/html /clickonce.asp > I think it is quite similar to "Java Web Start". > > Jacky Kwok > jacky@alumni_DOT_cuhk_DOT_edu_DOT_hk > jacky@compose_DOT_com_DOT_hk Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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