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Should I use MethodInvoker or Action [duplicate]

开发者 https://www.devze.com 2023-01-24 20:00 出处:网络
This question already has answers here: Closed 10 years ago. Possible Duplicate: MethodInvoker vs Action for Control.BeginInvoke
This question already has answers here: Closed 10 years ago.

Possible Duplicate:

MethodInvoker vs Action for Control.BeginInvoke

    ThreadPool.QueueUserWorkItem(x =>
        {
            //get dataset from web service

            BeginInvoke(new Action(() => { 
                //fill grid
            }));

            BeginInvoke(new MethodInvoker(() => {
                //fill grid
            }));
        });
开发者_JAVA技巧

In C# 2.0 I was using allot the MethodInvoker to update the UI from a background thread, will it be wise to switch to Action when using under BeginInvoke? Is it faster or safer to use Action?


It really doesn't make a difference, as both are simply delegate types which take no parameters and don't return a value. However, in terms of naming semantics, MethodInvoker is specific to WinForms and should therefore be limited to that scope. Action is all-purpose and can be used in any area of the framework.


They are both delegates, and identical to each other in definition (grabbed from MSDN):

public delegate void MethodInvoker()
public delegate void Action()

So at the IL level they should be pretty much identical. So I doubt it matters much which one you use. Action is more universal and more likely to be understood by more developers, but MethodInvoker does have a more descriptive name. Go with whichever one feels better to you.

But as davidsoa points out, you can skip them both and just use a lambda directly.

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