I am attempting to extract data from
using HtmlAgilityPack. The website is dynamic in nature, displaying content after the page has fully loaded. Currently, my code retrieves the HTML of the loading bar using this method, but encounters a TargetInvocationException when trying this approach. I am uncertain of how to implement a mechanism that waits for the complete page load before scraping the content.
HtmlAgilityPack is a handy .Net library that simplifies parsing HTML responses after making requests. If the desired data is not found in the initial response, another request may be necessary. In instances like the one you mentioned, where Ajax is used to update the page and HTML content is generated from a Json response, HtmlAgilityPack may not be able to parse the json data, posing a challenge. Additionally, repeatedly requesting the same URL will result in fetching a new page each time with the original unaltered HTML content, failing to address the issue at hand.
If you are using WebBrowser, you can implement a timer for waiting purposes.
When utilizing the Selenium driver in .Net, it is important to configure the timeout settings to allow sufficient time for attempting to locate an element before throwing a "not found" exception.
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