| 1. | Requests cancellation of a pending background operation 请求取消挂起的后台操作。 |
| 2. | How to : implement a form that uses a background operation 如何:实现使用后台操作的窗体 |
| 3. | If the background operation is already running , calling 如果后台操作已在运行,则再次调用 |
| 4. | To set up for a background operation , add an event handler for the 要为后台操作做好准备,请添加 |
| 5. | Starts execution of a background operation 开始执行后台操作。 |
| 6. | Walkthrough : implementing a form that uses a background operation 演练:实现一个使用后台操作的窗体 |
| 7. | Setting up for a background operation 为后台操作做好准备 |
| 8. | A parameter for use by the background operation to be executed in the 事件处理程序中执行的后台操作使用的参数。 |
| 9. | Submits a request to terminate the pending background operation and sets the 提交终止挂起的后台操作的请求,并将 |
| 10. | Event is raised , which in turn starts execution of your background operation 事件,该事件随后开始执行后台操作。 |