Runtime Changes for Migration from . NET Framework 4. 0 to 4. Introduction. Runtime changes affect all apps that are running under a . NET Framework it was not compiled against and that use a particular feature. In the topics that describe runtime changes, we have classified individual items by their expected impact, as follows: Major. This is a significant change that affects a large number of apps or that requires substantial modification of code. Minor. This is a change that affects a small number of apps or that requires minor modification of code. Edge case. This is a change that affects apps under very specific scenarios that are not common. Transparent. This is a change that has no noticeable effect on the app's developer or user. The app should not require modification because of this change. If you are migrating from the . NET Framework 4. 0 to 4. ADO. NETADO. NET now attempts to automatically reconnect broken SQL connections. ASP. NETGrid. Views with Allow. ![]() Custom. Paging set to true may fire the Page. Index. Changing event when leaving the final page of the view. Details. A bug in the . NET Framework 4. 5 causes Page. Index. Changing to sometimes not fire for Grid. Views that have enabled Allow. Custom. Paging. Suggestion. This issue has been fixed in the . NET Framework 4. 6 and may be addressed by upgrading to that version of the . NET Framework. As a work- around, the app can do an explicit Bind. Grid on any Page_Load that would hit these conditions (the Grid. View is on the last page and Last Page. Introduction. Runtime changes affect all apps that are running under a.NET Framework it was not compiled against and that use a particular feature.
Configuring SharePoint 2013 for the Forefront Identity Manager 2010 R2 Service Pack 1 Portal Print | posted on Sunday, February 17, 2013 5:05 AM. Size is different from Page. Size). Alternatively, the app can be modified to allow paging (instead of custom paging), as that scenario does not demonstrate the problem. Scope. Minor. Version. Type. Runtime. Affected APIs. Http. Request. Content. Encoding property prohibits UTF7. Details. Beginning in . NET Framework 4. 5, UTF- 7 encoding is prohibited in Http. Requests' bodies. Data for applications that depend on incoming UTF- 7 data will not decode properly in some cases. Suggestion. Ideally, applications should be updated to not use UTF- 7 encoding in Http. Requests. Alternatively, legacy behavior can be restored by using the aspnet: Allow. Utf. 7Request. Content. Encoding attribute of the app. Settings element. Scope. Edge. Version. Type. Runtime. Affected APIs. Analyzers. Http. Utility. Java. Script. String. Encode escapes ampersand. IPad should not be used in custom capabilities file because it is now a browser capability. Details. Beginning in . NET 4. 5, i. Pad is an identifier in the default ASP. NET browser capabilities file, so it should not be used in a custom capabilties file. Suggestion. If i. Pad- specific capabilities are required, it is necessary to modify i. Pad behavior by setting capabilities on the pre- defined gateway ref. ID "IPad" instead of by generating a new "IPad" ID by user agent matching. Scope. Edge. Version. Type. Runtime. Page. Load. Complete event no longer causes System. Web. UI. Web. Controls. Entity. Data. Source control to invoke data binding. Details. The Load. Complete event no longer causes the Entity. Data. Source control to invoke data binding for changes to create/update/delete parameters. This change eliminates an extraneous trip to the database, prevents the values of controls from being reset, and produces behavior that is consistent with other data controls, such as Sql. Data. Source and Object. Data. Source. This change produces different behavior in the unlikely event that applications rely on invoking data binding in the Load. Complete event. Suggestion. If there is a need for databinding, manually invoke databind in an event that is earlier in the post- back. Scope. Edge. Version. Type. Runtime. Analyzers. Profiling ASP. Net MVC4 apps can lead to Fatal Execution Engine Error. Details. Profilers using NGEN /Profile assemblies may crash profiled ASP. NET MVC4 applications on startup with a 'Fatal Execution Engine Exception'Suggestion. This issue is fixed in the . NET Framework 4. 5. Alternatively, the profiler may avoid this issue by specifying COR_PRF_DISABLE_ALL_NGEN_IMAGES in its event mask. Scope. Edge. Version. Type. Runtime. Sharing session state with Asp. Net State. Server requires all servers in the web farm to use the same . NET Framework version. Details. When enabling State. Server session state, all of the servers in the given web farm must use the same version of the . NET Framework in order for state to be properly shared. Suggestion. Be sure to upgrade . NET Framework versions on web servers that share state at the same time. Scope. Edge. Version. Type. Runtime. Affected APIs. Web. Utility. Html. Decode no longer decodes invalid input sequences. Details. By default, decoding methods no longer decode an invalid input sequence into an invalid UTF- 1. Instead, they return the original input. Suggestion. The change in decoder output should matter only if you store binary data instead of UTF- 1. To explicitly control this behavior, set the aspnet: Allow. Relaxed. Unicode. Decoding attribute of the app. Settings element to true to enable legacy behavior or to false to enable the current behavior. Scope. Minor. Version. Type. Runtime. Affected APIs. Analyzers. Core. A Concurrent. Dictionary serialized in . NET 4. 5 with Net. Data. Contract. Serializer cannot be deserialized by . NET 4. 5. 1 or 4. Details. Due to internal changes to the type, Concurrent. Dictionary< TKey,TValue> objects that are serialized with the . NET Framework 4. 5 using the Net. Data. Contract. Serializer cannot be deserialized in the . NET Framework 4. 5. NET Framework 4. 5. Note that moving in the other direction (serializing with the . NET Framework 4. 5. NET Framework 4. 5) works. Similarly, all 4. NET Framework 4. 6. Serializing and deserializing with a single version of the . NET Framework is not affected. Suggestion. If it is necessary to serialize and deserialize a Concurrent. Dictionary< TKey,TValue> between the . NET Framework 4. 5 and . NET Framework 4. 5. Data. Contract. Serializer or Binary. Formatter serializer should be used instead of the Net. Data. Contract. Serializer. Alternatively, because this issue is addressed in the . NET Framework 4. 6, it may be solved by upgrading to that version of the . NET Framework. Scope. Minor. Version. 4. Type. Runtime. Analyzers. Assemblies compiled with Regex. Compile. To. Assembly breaks between 4. Blocking. Collection< T>. Try. Take. From. Any does not throw anymore. Details. If one of the input collections is marked completed, Try. Take. From. Any(Blocking. Collection< T> [], T) no longer returns - 1 and Take. From. Any(Blocking. Collection< T> [], T) no longer throws an exception. This change makes it possible to work with collections when one of the collections is either empty or completed, but the other collection still has items that can be retrieved. Suggestion. If Try. Take. From. Any returning - 1 or Take. From. Any throwing were used for control- flow purposes in cases of a blocking collection being completed, such code should now be changed to use . Any(b => b. Is. Completed) to detect that condition. Scope. Minor. Version. Type. Runtime. Affected APIs. Blocking. Collection< T>. Take. From. Any(Blocking. Collection< T> [], T)Blocking. Collection< T>. Take. From. Any(Blocking. Collection< T> [], T, Cancellation. Token)Blocking. Collection< T>. Try. Take. From. Any(Blocking. Collection< T> [], T)Blocking. Collection< T>. Try. Take. From. Any(Blocking. Collection< T> [], T, Int. Blocking. Collection< T>. Try. Take. From. Any(Blocking. Collection< T> [], T, Time. Span)Blocking. Collection< T>. Try. Take. From. Any(Blocking. Collection< T> [], T, Time. Span)Analyzers. Change in behavior for Task. Wait. All methods with time- out arguments. Details. Task. Wait. All behavior was made more consistent in . NET 4. 5. In the . NET Framework 4, these methods behaved inconsistently. When the time- out expired, if one or more tasks were completed or canceled before the method call, the method threw an Aggregate. Exception exception. When the time- out expired, if no tasks were completed or canceled before the method call, but one or more tasks entered these states after the method call, the method returned false. In the . NET Framework 4. Aggregate. Exception exception only if an input task was cancelled (regardless of whether it was before or after the method call) and no other tasks are still running. Suggestion. If an Aggregate. Exception was being caught as a means of detecting a task that was cancelled prior to the Wait.
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