ScrapySharp causes Windows Form to freeze without exception

Question

When included in my code

ScrapingBrowser browser = new ScrapingBrowser();

WebPage testPage = browser.NavigateToPage(new Uri("https://www.google.co.uk/"));

causes the Windows Form to stop working (once this line is reached in execution, the form freezes and I have to halt execution). However, there are no errors or anything else to indicate something is wrong.

What is ScrapySharp and why is this tagged html-agility-pack? — nvoigt, Nov 13 '17 at 15:14
ScrapySharp is a NugetPackage that wraps html-agility-pack. It does not have its own tag on Stackoverflow — KangarooChief, Nov 13 '17 at 15:15
OK, so why is it important here? Your code sample has neither of both. — nvoigt, Nov 13 '17 at 15:18
Ah I see, I thought the browser control itself had a `NavigateToPage`. — nvoigt, Nov 13 '17 at 15:20
"WebPage" and "NavigateToPage" are part of ScrapySharp and browser refers to a "ScrapingBrowser" — KangarooChief, Nov 13 '17 at 15:20
[This](https://www.codeproject.com/questions/1137827/why-cant-i-us-scrapysharp-in-a-windows-form) might be useful. — Benedict Bunting, Nov 13 '17 at 15:23

score 1 · Answer 1 · answered Nov 13 '17 at 15:45

1

You should not use this method from your UI thread. Use your favorite technology (BackgroundWorker, Task, Thread) to run this on another thread that does not block the UI thread.

You could also use ScrapySharp's own async method: NavigateToPageAsync

answered Nov 13 '17 at 15:45

nvoigt

75,013
26
93
142

score 0 · Answer 2 · answered Aug 07 '20 at 17:13

0

Seems that ScrappySharp doesn't work in Windows Forms. I've used the same Form code in a Console project and it works perfectly.

answered Aug 07 '20 at 17:13

Disu

113
10

Your answer doesn't solve the problem...i would put it as a comment not as an answer – J.J Aug 07 '20 at 17:47

ScrapySharp causes Windows Form to freeze without exception

2 Answers2