Task.Start vs. Async

does know advantages/disadvantes of each:

task

async/await

they pretty similar.

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jp cowboy coders unite!

the new async/await features build on top of task , task<t>.  they make life far easier work with, code doesn't have turned inside out or have strange language work.

you can of same things them, though - example, wanted connect async service (that returned task<int>) , update text box, task in .net 4:

// ie: in button event handler - private void button1_click(object sender, eventargs e) {     task<int> task = someservice.getdataasync();      task.continuewith(t =>     {       try       {         int data = t.result;         textbox1.text = string.format("received {0}", data);       }       catch(aggregateexception ae)       {           // aggregateexception, custom handling required           ae.handle( ex =>           {               if (ex mycustomexception)               {                   textbox1.text = "received mycustomexception";               }                logexception(ex); // log this/handle somehow/etc               return true; // mark handled           });       }     }, taskscheduler.fromcurrentsynchronizationcontext()); }

this same code, using async/await, gets far simpler:

// ie: in button event handler - private async void button1_click(object sender, eventargs e) {     try     {         int data = await someservice.getdataasync();         textbox1.text = string.format("received {0}",      }     catch(mycustomexception ce) // catch "proper" exception type directly     {          textbox1.text = "received mycustomexception";     }     catch (exception e)     {          logexception(e);     } }

these behave same way - second far simpler use , work with...

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reed copsey, jr. - http://reedcopsey.com
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