I'm trying to make sure that my understanding of IDisposable is correct and there's something I'm still not quite sure on. IDisposable seems to serve two purpose. To provide a convention to "shut down" a managed object on demand. To provide a convention to free "unmanaged resources" held by a managed object. My confusion comes from ...
Hello. My understanding about this class is that you should use it when you want to be sure that the Finalizer(destructor) or the class is called, but from a couple of tests I did, it doesn't seem to be true. If it does not make sure that the dispose method is called, is there any other way of doing it? For example, if i want to make sur...
I have a WindowsForms app that appears to leak memory, so I used Redgate's ANTS Memory Profiler to look at the objects I suspect and find that they are only held by objects already on the Finalizer Queue. Great, exactly what is a the Finalizer Queue? Can you point me to the best definition? Can you share any anecdotal advice? Also, all ...
Getting the above error in following code. How to rectify it. Thanks. Please look for protected override void Finalize() { Dispose(false); } in the below code. using Microsoft.Win32; using System.Runtime.InteropServices; public class Kiosk : IDisposable { #region "IDisposable" // Implementing IDisposable since it...
I am not a fan of boilerplate code: copy-paste reuse is potentially error-prone. Even if you use code snippets or smart templates, there is no guarantee the other developer did, which means there's no guarantee they did it right. And, if you have to see the code, you have to understand it and/or maintain it. What I want to know from the...
I was reading this article the other day and was wondering why there was a Finalizer along with the Dispose method. I read here on SO as to why you might want to add Dispose to the Finalizer. My curiousity is, when would the Finalizer be called over the Dispose method itself? Is there a code example or is it based on something happeni...
Is there any way to "automatically" run finalization / destructor code as soon as a variable loses scope in a .Net language? It appears to me that since the garbage collector runs at an indeterminate time, the destructor code is not run as soon as the variable loses scope. I realize I could inherit from IDisposable and explicitly call ...
I have a DataGridView being regularly populated via data-bound objects, and the number of rows can potentially become large, say many thousands during a 'logging cycle'. When a new 'logging cycle' begins, the grid is cleared because the underlying datasource is cleared and the process begins again. This is all fine, but because the pre...
I am relatively new to WPF, and some things with it are quite foreign to me. For one, unlike Windows Forms, the WPF control hierarchy does not support IDisposable. In Windows Forms, if a user control used any managed resources, it was very easy to clean up the resources by overriding the Dispose method that every control implemented. I...
I have a managed object that calls a COM server to allocate some memory. The managed object must call the COM server again to free that memory before the managed object goes away to avoid a memory leak. This object implements IDisposable to help ensure that the correct memory-releasing COM call is made. In the event that the Dispose m...
Hi, The question is how can I test the fact that object disposes resources when finalise is called. The code for the class: public class TestClass : IDisposable { public bool HasBeenDisposed {get; private set; } public void Dispose() { HasBeenDisposed = true; } ~TestClass() { Dispose(); } } Plea...
I am using a search library which advises keeping search handle object open for this can benefit query cache. Over the time I have observed that the cache tends to get bloated (few hundred megs and keeps growing) and OOMs started to kick in. There is no way to enforce limits of this cache nor plan how much memory it can use. So I have in...
I cannot seem to understand the behavior of GC.Collect() under the presence of a class overriding Object.Finalize(). This is my base code: namespace test { class Foo { ~Foo() { Console.WriteLine("Inside Foo.Finalize()"); } } static class Program { static void Main() { { Foo bar = new Foo(); } GC.Collect(); ...
I noticed that System.Threading.Thread implements a finalizer but not IDisposable. The recommended practice is to always implement IDisposable when a finalizer is implemented. Jeffrey Richter wrote that the guideline is "very important and should always be followed without exception". So why doesn't Thread implement IDisposable? It seem...
I am trying to get my Windows State Machine workflow to communicate with end users. The general pattern I am trying to implement within a StateActivity is: StateInitializationActivity: Send a message to user requesting an answer to a question (e.g. "Do you approve this document?"), together with the context for... ...EventDrivenActivity...
I'm not quite understanding why there are finalizers in languages such as java and c#. AFAIK, they: are not guaranteed to run (in java) if they do run, they may run an arbitrary amount of time after the object in question becomes a candidate for finalization and (at least in java), they incur an amazingly huge performance hit to even s...
Please Note: This question is about the difference in terminology between the words "destructor" and "finalizer" and their correct usage. I have merely provided examples of their use in C# and C++/CLI to demonstrate why I am asking the question. I am well aware of how it is implemented in both C# and the CLR, but I am asking about the co...
Here's some sample code: using System; namespace UnloadFromFinalizer { class Program { static void Main(string[] args) { Program p = new Program(); } AppDomain domain; Program() { this.domain = AppDomain.CreateDomain("MyDomain"); } ~Program...
Hi all, I'm writing a Excel class using Microsoft.Interropt.Excel DLL. I finish all function but I have an error in my Destructor. I Want to save all changes to my file and I want to release all source. I want to all of them in my destructor. But In my destructor, Excel.ApplicationClass, Workbook and Worksheet objects are fill by an Exc...
Is it possible to add a Finalizer to a CodeDom generated class (other than using CodeSnippetTypeMember)? I couldn't find any information about it on MSDN. ...