VB.Net backgroundworker wait for finish
To wait for a BackgroundWorker to finish in VB.NET, you can use the IsBusy property. The IsBusy property returns True if the BackgroundWorker is currently executing a task, and False otherwise.
To wait for a BackgroundWorker to finish, you can simply loop while the IsBusy property is True. For example, the following code shows how to wait for a BackgroundWorker to finish before continuing:
You can also use the RunWorkerCompleted event to be notified when a BackgroundWorker has finished executing a task. The RunWorkerCompleted event handler is passed a RunWorkerCompletedEventArgs object, which contains information about the task that was completed.
For example, the following code shows how to use the RunWorkerCompleted event to be notified when a BackgroundWorker has finished executing a task:
Using the IsBusy property or the RunWorkerCompleted event to wait for a BackgroundWorker to finish is the best way to ensure that your code does not continue until the BackgroundWorker has finished executing its task.
The BackgroundWorker component is used to perform time-consuming operations in a separate thread, allowing the main UI thread to remain responsive.
Create and Initialize the BackgroundWorker
First, create and initialize a BackgroundWorker instance. You should handle its events, especially the DoWork event, where you define the work to be performed in the background thread.
Define the Work to Be Performed
In the DoWork event handler, you define the work that the BackgroundWorker should perform. For example:
Handle the Completion
The RunWorkerCompleted event is raised when the background work is finished. You can use this event to handle the completion of the operation.
Wait for Completion
To wait for the BackgroundWorker to finish, you can use the RunWorkerAsync method in a blocking manner:
By calling WaitOne, you block the current thread until the background worker completes its operation.Full Source
In this example, we use WaitOne to wait for the BackgroundWorker to complete its work, ensuring that the main thread waits for the background work to finish before proceeding.
You can use the BackgroundWorker component to perform time-consuming operations in a separate thread, allowing the main UI thread to stay responsive. To wait for a BackgroundWorker to finish, you can use the RunWorkerCompleted event or WaitOne method to block the main thread until the background work is complete, ensuring orderly execution of tasks.