How to make an "old style" asynchronous method

Question

If I have an asynchronous method with a callback

MyMethodAsync( <Input Parameters ...>, Callback);

how can i make it expected?

[This method is for a Windows 7 phone, but should be equally applicable to any similar C # design]

DNSEndpoint Endpoint = ...
NameResolutionCallback Callback = (nrr) => { ... }
DeviceNetworkInformation.ResolveHostNameAsync(Enpoint, Callback, null);

I want to put a waiting shell around this call, so I wait for the callback to complete before continuing with the next command.

+5

Peregrine Feb 01 '13 at 12:08

1 answer

Daniel Hilgarth · Accepted Answer · 2013-02-01T12:15:50+0000

var tcs = new TaskCompletionSource<TypeOfCallbackParameter>();

MyMethodAsync(..., r => tcs.SetResult(r));

return tcs.Task;