BackgroundWorker.RunWorkerAsync Method (Object)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Starts running a background operation and includes a parameter for use by the background operation.
Assembly: System (in System.dll)
Parameters
- argument
- Type: System.Object
A parameter for use by the background operation in the DoWork event handler.
| Exception | Condition |
|---|---|
| InvalidOperationException | IsBusy is true. |
The RunWorkerAsync method submits a request to start the operation running asynchronously. When the request is processed, the DoWork event is raised, which in turn starts running your background operation.
If your background operation requires a parameter, you can provide it as the argument parameter to RunWorkerAsync.
If the background operation is already running, calling RunWorkerAsync again will raise an InvalidOperationException.