Resolve the implementation method that the DocumentCompleted event of WebBrowser in C is not executed

Implementation method to resolve WebBrowser DocumentCompleted event not executed in C# :
Using the ProgressChanged event of WebBrowser, determine whether ((WebBrowser)sender).ReadyState == WebBrowserReadyState.Complete is valid in time, and if so, perform the DocumentCompleted processing.

void WebBrowser_ProgressChangedForSomething(object sender, WebBrowserProgressChangedEventArgs e) 
{ 
    if (((WebBrowser)sender).ReadyState == WebBrowserReadyState.Complete) { 
        DoSomething(); 
    } 
}