问题
I have a list of url and I need to navigate them. How can I make sure that every url will call the DocumentCompleted event ? I've already tried to create many threads and tried using a single thread too but the app is still not firing the event DocumentCompleted for each url.
Is there a way to make a loop in a list of urls and make them call a DocumentCompleted until the thread calls the next url ?
回答1:
To implement this, async/await and Task Parallel Library may come in handy. They allow to have familiar, pseudo-linear code flow for what is an asynchronous logic (handling DocumentCompleted events for multiple navigations, one after another).
I answered a similar question for a WinForm app here and for a console app here.
If you need to target .NET 4.0 but develop with VS2012+ , you still can use async/await, Microsoft provides the Microsoft.Bcl.Async library for that.
If C# 5.0 is not available for this project, you can use yield, as described here.
回答2:
If a page has scripts errors on it, it is possible it will never complete. You should make a timeout for that event.
来源：https://stackoverflow.com/questions/21935972/how-to-navigate-in-a-list-of-links-using-webbrowser