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Questions tagged [dispose]

Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources

Microsoft.NET

The pattern for disposing an object, referred to as a dispose pattern, imposes order on the lifetime of an object. The dispose pattern is used only for objects that access unmanaged resources. This is because the garbage collector is very efficient at reclaiming unused managed objects.

A type's Dispose method should release all the resources that it owns. It should also release all resources owned by its base types by calling its parent type's Dispose method. The parent type's Dispose method should release all resources that it owns and in turn call its parent type's Dispose method, propagating this pattern through the hierarchy of base types.

Reference

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What's the recommended way to deal with leaked IAsyncDisposable instances?

I've been familiarizing myself with some of the things (that are planned to be) added in C# 8 & .NET Core 3.0, and am unsure on the correct way to implement IAsyncDisposable (at time of writing, this link has literally no guidance). In particular,…
Kevin Montrose
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Can I dispose a Threading.Timer in its callback?

I'm using Threading.Timer, like: new Timer(new TimerCallback(y=> { try { Save(Read(DateTime.Now)); // here i want to dispose this timer } catch { } }),null,100000,10000); How can I…
eba
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Thread-Safety of Dispose methods?

MSDN documents the thread-safety of instances members of BCL types pretty well, but I have never really seen information indicating how the Dispose method of IDisposable types can be called. Is the Dispose method a) guaranteed to be thread-safe for…
Noldorin
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Proper way to dispose a new Form

So in my apps, I tend to create new instances of forms on the fly, then use Form.Show() to display them (non modal). private void test_click(object sender, EventArgs e) { var form = new myForm(); form.Show(); } However, Code Cracker tells…
javon27
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What happens if i don't call dispose()?

public void screenShot(string path) { var bmpScreenshot = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height, …
user2101976
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Returning image created by Image.FromStream(Stream stream) Method

I have this function which returns an Image within the function the image is created using the Image.FromStream method According to MSDN: You must keep the stream open for the lifetime of the Image So I'm not closing the stream(if I do close the…
Abdullah Saleem
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Can a CryptoStream be returned and still have everything dispose correctly?

If I have a CryptoStream that I want to pass back to the user, the naïve approach would be public Stream GetDecryptedFileStream(string inputFile, byte[] key, byte[] iv) { var fsCrypt = new FileStream(inputFile, FileMode.Open, FileAccess.Read,…
Scott Chamberlain
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How to dispose managed resource in Dispose() method in C#?

I know Dispose() is intended for unmanaged resource, and the resource should be disposed when it is no longer needed without waiting for the garbage collector to finalize the object. However, when disposing the object, it suppress finalization of…
Will Yeo - MSFT
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Minimal IDisposable implimenation for managed resources only

There is a LOT of info around about the "standard full" IDisposable implementation for disposing of unmanaged resources - but in reality this case is (very) rare (most resources are already wrapped by managed classes). This question focuses on a…
Ricibob
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C# abstract Dispose method

I have an abstract class that implements IDisposable, like so: public abstract class ConnectionAccessor : IDisposable { public abstract void Dispose(); } In Visual Studio 2008 Team System, I ran Code Analysis on my project and one of the…
Sarah Vessels
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How do I dispose all of the controls in a panel or form at ONCE??? c#

Possible Duplicate: Does Form.Dispose() call controls inside's Dispose()? is there a way to do this?
Luiscencio
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WCF ChannelFactory and channels - caching, reusing, closing and recovery

I have the following planned architecture for my WCF client library: using ChannelFactory instead of svcutil generated proxies because I need more control and also I want to keep the client in a separate assembly and avoid regenerating when my WCF…
JustAMartin
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Stopping Handler runnable tasks when destroying activity

I usually delegate all Activities events to a separate controller class, which has a special method for handling events from Activity @Override public boolean handleMessage(int what, Object data) { switch (what) { case…
Sergei Ledvanov
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Does SqlTransaction need to have Dispose called?

Do I need to call dispose in the finally block for SqlTransaction? Pretend the developer didnt use USING anywhere, and just try/catch. SqlTransaction sqlTrans = con.BeginTransaction(); try { //Do Work sqlTrans.Commit() } catch (Exception ex) …
Mike Flynn
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Disposing SQL command and closing the connection

till now I always used a similar structure to get data from DB and fill a DataTable public static DataTable GetByID(int testID) { DataTable table = new DataTable(); string query = @"SELECT * FROM tbl_Test AS T WHERE T.testID…
MaiOM
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