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.NET Forum / ASP.NET / General / September 2007workaround for FCN/directory delete bug
hi, I have come across the problem mentioned in this blog http://blogs.msdn.com/toddca/archive/2005/12/01/499144.aspx it's basically the fact that in ASP.NET 2.0, the File Change Notification is uses causes the application to unload every time a directory underneath the webroot is deleted. The bodge suggested as a work-around in the article (which involves messing around with the file system) is not an option that is open to me. Does anyone know whether a proper fix or workaround for this problem is available? if not, the only thing I can think of is to delete only files at runtime and then wait until application shutdown to clear the directory tree. Regards, Andy create an app_data folder in your site, which asp.net does not monitor. -- bruce (sqlwork.com) > hi, > [quoted text clipped - 17 lines] > > Andy Thanks Bruce, From what I can see, files in the app_data folder are not served through IIS. Files in the folder structure I am creating need to be visible to the web browser, so that solution is no good for me. Andy > create an app_data folder in your site, which asp.net does not monitor. > [quoted text clipped - 21 lines] >> >> Andy just found this: https://connect.microsoft.com/VisualStudio/feedback/Workaround.aspx?FeedbackID=240686 and I have implemented Kritter's hack which works fine for me on XP and win 2003 - copied below FYI: Entered by [By]Kritter on 23/07/2007 A dirty hack that works: PropertyInfo p = typeof(System.Web.HttpRuntime).GetProperty("FileChangesMonitor", BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static); object o = p.GetValue(null, null); FieldInfo f = o.GetType().GetField("_dirMonSubdirs", BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.IgnoreCase); object monitor = f.GetValue(o); MethodInfo m = monitor.GetType().GetMethod("StopMonitoring", BindingFlags.Instance | BindingFlags.NonPublic); m.Invoke(monitor, new object[] { }); This code will turn off monitoring from the root website directory, but monitoring of Bin, App_Themes and other folders will still be operational, so updated DLLs will still auto deploy. > Thanks Bruce, > [quoted text clipped - 30 lines] >>> >>> Andy My personal preference is just to not store those files under my web site structure : - you can server files stored outside of your structure (using an ASPX page or a handler that allows additionaly to control how it is accessed especially if those files are not supposed to be served to everyone) - you could also likely use a virtual folder This keep your web application and its data apart... -- Patrice > just found this: > [quoted text clipped - 55 lines] >>>> >>>> Andy for the most part that is exactly what I am doing however, to serve optimized (linearized) pdfs properly is rather more complicated because the browser requests chunks of the file with separate HTTP requests, so for this case I decided the best solution was to make a temporary copy of the PDF underneath the web root, then redirect the browser to it. that way the optimized download works properly without lots of extra code Andy > My personal preference is just to not store those files under my web site > structure : [quoted text clipped - 68 lines] >>>>> >>>>> Andy Good point. In my particular case, it was more a library of misc documents so I served anyway all files using an attachment disposition for consistency. Plus I always use myself "save as" on third party site as I really dislike this feature that makes generally the browser (at least IE) much less responsive IMHO ;-) It looks this is discussed here and there : http://www.google.com/search?hl=en&q=pdf++download+aspnet+handler+accept+range Interesting topic. --- Patrice > for the most part that is exactly what I am doing > [quoted text clipped - 80 lines] >>>>>> >>>>>> Andy
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