asp.net delete project file and folder IIS restart Session missing problem

Look carefully 1, SSO returned ticket is not the same, only to find that the original IIS has been restarted, the final solution is as follows:

Create a new class that inherits IHttpModule

 
/// <summary> 
/// Stops the ASP.NET AppDomain being restarted (which clears 
/// Session state, Cache etc.) whenever a folder is deleted. 
/// </summary> 
public class StopAppDomainRestartOnFolderDeleteModule : IHttpModule 
{ 
private static bool DisableFCNs = false; 
public void Init(HttpApplication context) 
{ 
if (DisableFCNs) return; 
PropertyInfo p = typeof(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[] { }); 
DisableFCNs = true; 
} 
public void Dispose() { } 
} 

The Module configuration is then added to Web.Config

 
<!-- Resolve to delete project files / Folder caused IIS restart --> 
<add name="stopAppDomainRestartOnFolderDelete" type="DeployAssistant.Facade.Web.StopAppDomainRestartOnFolderDeleteModule,DeployAssistant.Facade"/> 

Every time you delete a file/folder, AppDomain will not be rebooted, and Session will not be lost. The world is a better place!

Changes to PS: Web.Config and bin folders will still cause Web to restart, which must be kept!