How can you force Dispose method to be called automatically in .NET?

Best way is to force this method to be called automatically. This can be achieved in .NET by calling the Dispose method inside Finalize method. Also, to ensure that the garbage collector doesn’t run two times, you should include GC.SuppressFinalize method call inside Dispose method.

Here is a sample code in C# to demonstrate it:

public class sampleClass:IDisposable {
public System.IO.StreamReader sampleReader;
public sampleClass() {
sampleReader = new System.IO.StreamReader("sample.txt");
}
public void Dispose() {
if (sampleReader != null) {
sampleReader.Close();
}
GC.SuppressFinalize(this);
}
~sampleClass() {
Dispose();
}
}

In this example, you release the unmanaged resource namely sampleReader from inside Dispose method and you call Dispose method from inside the destructor. This is because you cannot override Finalize method directly in C#. In VB.NET, you will be calling Dispose method from inside Finalize method as shown below:

Overrides Sub Finalize()
Dispose()
End Sub

_______________________________________________________________________

FREE Subscription

Subscribe to our mailing list and receive new articles
through email. Keep yourself updated with latest
developments in the industry.

Name:
Email:

Note : We never rent, trade, or sell my email lists to
anyone. We assure that your privacy is respected
and protected.

Visit .NET Programming Tutorial Homepage

______________________________________________________

Recommended Resource

| How do you prevent a class from overriding in .NET? | How are classes related to objects in .NET Application | How are Delegates different from Events in .NET? | How are system exceptions different from application exceptions in .NET? | How are Value Types different from Reference Types in .NET? | How can a finalize method be suppressed in .NET? | How can you call Stored Procedure in ADO.NET? | How can you force Dispose method to be called automatically in .NET? | How do you call a Base Class Constructor from Derived Class Constructor in .NET? | How do you connect your VB.NET application to SQL Server? | How do you implement Cloning in .NET? | How do you implement Façade Design Pattern in .NET? | How do you implement MVC Pattern in ASP.NET? | How do you install .NET Assembly in GAC? | How is shadowing different from overriding in .NET? | How to prevent a particular .NET DLL from being decompiled? | Illustrate Delay Signing Process of an Assembly in .NET? | What are Reference Types in .NET? | What are the advantages of C#? | What are the advantages of VB.NET? | What are the differences between Namespace and Assembly in .NET? | What are the similar features between class and structure in .NET? | What are Value Types in .NET? | What do you mean by mixed mode authentication in .NET? | What do you mean by Satellite Assembly in .NET? | What do you mean by shadowing in .NET? | What is CTS in .NET? | What is ILDASM in .NET? | What is Managed Code in .NET? | What is Manifest in .NET? | What is MSIL in .NET Framework? | What is the importance of finalize method in .NET? | What is the need for Visitor Pattern in C#? | What is the purpose of bindingRedirect tag in web.config file of .NET? | What is the purpose of CodeDom in .NET? | What is the purpose of dispose method in .NET? | What is the purpose of Ngen.exe in .NET? | What is the purpose of Strong Name in COM Components of .NET? | What is the purpose of virtual keyword in .NET? | What Object Oriented Principles can be incorporated in .NET Application? |