Called when the browser is done loading a frame. TheFrame value will never be empty Check theIsMain method to see if this frame is the main frame. Multiple frames may be loading at the same time. Sub-frames may start or continue loading after the main frame load has ended. This method will always be called for all frames irrespective of whether the request completes successfully. This method will be called on the CEF UI thread. Blocking this thread will likely cause your UI to become unresponsive and/or hang.

Called when the browser begins loading a frame. TheFrame value will never be empty Check theIsMain method to see if this frame is the main frame. Multiple frames may be loading at the same time. Sub-frames may start or continue loading after the main frame load has ended. This method may not be called for a particular frame if the load request for that frame fails. For notification of overall browser load status useOnLoadingStateChange(IWebBrowser, LoadingStateChangedEventArgs) instead. This method will be called on the CEF UI thread. Blocking this thread will likely cause your UI to become unresponsive and/or hang.

Called when the resource load for a navigation fails or is canceled.ErrorCode is the error code number,ErrorText is the error text andFailedUrl is the URL that failed to load. See net\base\net_error_list.h for complete descriptions of the error codes. This method will be called on the CEF UI thread. Blocking this thread will likely cause your UI to become unresponsive and/or hang.

Called when the loading state has changed. This callback will be executed twice once when loading is initiated either programmatically or by user action, and once when loading is terminated due to completion, cancellation of failure. This method will be called on the CEF UI thread. Blocking this thread will likely cause your UI to become unresponsive and/or hang.