[Mono-bugs] [Bug 79396][Nor] New - Type not found when IConfigurationSectionHandler in bin

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Changed by rmt512 at gmail.com.

http://bugzilla.ximian.com/show_bug.cgi?id=79396

--- shadow/79396	2006-09-14 13:14:38.000000000 -0400
+++ shadow/79396.tmp.21059	2006-09-14 13:14:38.000000000 -0400
@@ -0,0 +1,156 @@
+Bug#: 79396
+Product: Mono: Class Libraries
+Version: 1.0
+OS: 
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: Sys.Web
+AssignedTo: gonzalo at ximian.com                            
+ReportedBy: rmt512 at gmail.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: Type not found when IConfigurationSectionHandler in bin
+
+Description of Problem:
+
+I want to create a custom configuration section in web.config, by adding
+new section groups
+
+e.g., like mono.data
+
+<sectionGroup name="mono.data">
+			<section name="providers"
+type="Mono.Data.ProviderSectionHandler,Mono.Data" />
+		</sectionGroup>
+
+now, if an imlpementor of IConfigurationSectionHandler is defined in an
+assembly in bin, it is not found, and fails with this error
+
+System.Reflection.TargetInvocationException: Exception has been thrown by
+the target of an invocation. ---> System.TypeInitializationException: An
+exception was thrown by the type initializer for
+Accounts.Core.AddIns.AddInFactory --->
+System.Configuration.ConfigurationErrorsException: Type not found:
+'Accounts.Core.AddIns.AddInHandler' () ()
+  at System.Web.Configuration.WebConfigurationHost.GetConfigType
+(System.String typeName, Boolean throwOnError) [0x00000] 
+  at System.Configuration.ConfigInfo.CreateInstance () [0x00000] 
+  at System.Configuration.SectionInfo.CreateInstance () [0x00000] 
+  at System.Configuration.Configuration.GetSectionInstance
+(System.Configuration.SectionInfo config, Boolean createDefaultInstance)
+[0x00000] 
+  at System.Configuration.ConfigurationSectionCollection.get_Item
+(System.String name) [0x00000] 
+  at System.Configuration.Configuration.GetSection (System.String path)
+[0x00000] 
+  at
+System.Web.Configuration.WebConfigurationManager.GetWebApplicationSection
+(System.String sectionName) [0x00000] 
+  at System.Web.Configuration.Web20DefaultConfig.GetConfig (System.String
+sectionName) [0x00000] 
+  at System.Configuration.ConfigurationSettings.GetConfig (System.String
+sectionName) [0x00000] 
+  at Accounts.Core.AddIns.AddInFactory..cctor () [0x00000] --- End of inner
+exception stack trace ---
+
+
+This reminded me of bug 
+
+http://bugzilla.ximian.com/show_bug.cgi?id=78321,  	
+[2.0] ObjectDataSource fails to find the specified type
+
+I applied the patch from Marek Habersack to
+
+mcs/class/System.Web/System.Web.Configuration_2.0/WebConfigurationHost.cs
+
+to get the attached diff, which makes it work to my satisfaction.
+
+Index: class/System.Web/System.Web.Configuration_2.0/WebConfigurationHost.cs
+===================================================================
+--- class/System.Web/System.Web.Configuration_2.0/WebConfigurationHost.cs 
+    (revision 65334)
++++ class/System.Web/System.Web.Configuration_2.0/WebConfigurationHost.cs 
+    (working copy)
+@@ -34,7 +34,9 @@
+ using System.Configuration;
+ using System.Configuration.Internal;
+ using System.Web.Util;
++using System.Reflection;
+
++
+ /*
+  * this class needs to be rewritten to support usage of the
+  * IRemoteWebConfigurationHostServer interface.  Once that's done, we
+@@ -87,10 +89,56 @@
+                        return configPath + "/" + locatinSubPath;
+                }
+
++               private static string privateBinPath;
++
++               private static string PrivateBinPath
++               {
++                       get {
++                               if (privateBinPath != null)
++                                       return privateBinPath;
++
++                               AppDomainSetup setup =
+AppDomain.CurrentDomain.SetupInformation;
++                               privateBinPath =
+Path.Combine(setup.ApplicationBase, setup.PrivateBinPath);
++
++                               return privateBinPath;
++                           }
++               }
++
++               private Type LoadType(string typeName)
++               {
++                       Type type = null;
++                       Assembly [] assemblies =
+AppDomain.CurrentDomain.GetAssemblies ();
++System.Console.WriteLine("doing my patch with "+typeName);
++
++                       foreach (Assembly ass in assemblies) {
++                               type = ass.GetType (typeName);
++                               if (type == null)
++                                       continue;
++
++                               return type;
++                       }
++
++                       if (!Directory.Exists (PrivateBinPath))
++                               return null;
++
++                       string[] binDlls =
+Directory.GetFiles(PrivateBinPath, "*.dll");
++                       foreach (string s in binDlls) {
++                               Assembly binA = Assembly.LoadFrom (s);
++                               type = binA.GetType (typeName);
++                               if (type == null)
++                                       continue;
++
++                               return type;
++                       }
++
++                       return null;
++               }
++
+                [MonoTODO ("this should consult with the build provider
+machinery")]
+                public virtual Type GetConfigType (string typeName, bool
+throwOnError)
+                {
+-                       Type type = Type.GetType (typeName);
++                       //Type type = Type.GetType (typeName);
++                       Type type = LoadType(typeName);
+                        if (type == null && throwOnError)
+                                throw new ConfigurationErrorsException
+("Type not found: '" + typeName + "'");
+                        return type;
+
+
+Thanks.