What is shadow Copy?

[.NetIndia]

 

What is shadow Copy?

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[Juneja Tarun]

Shadow copy is the way by which you can hide the base class Member
in C# you have to use new key word before Function/property/Field name
In vb.net You Have To Use Shadow key word

And Now Base Implementation Is Hidden in this drived class

As far i think this is the way by which you can Change the Visibility
Scope as below example

But It follow Different polimor..ism call rule

class _base
{
//code
protected void f()
{
//code
}
}

class drived : _base
{
public void f()
{
base.f(); // call to base implementation and now it is public
}

}

[BabuLives]

I dont think there is a keyword called "shadow" in c# ??

Regards,
Satheesh

[sunil]

      .Net Framework has a feature called Shadow Copy. When shadow copy is enabled on an appdomain, assemblies loaded in that appdomain will be copied to a shadow copy cache directory, and will be used from there.This is great because the original file is not locked. So it can be changed at will. ASP.NET uses this extensively. Actually, shadow copy
is enabled on every appdomain created by ASP.NET.

      Only because of "Shadow copy" concept you need not restart the webserver for any modification in components. Even when you create update with the new version of the DLL the existing or live transaction or half way transaction are not affected rather completed with the olderversion. Once the service is completed the rest are serviced with the new version of DLL / component.

 

regards

sunil

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