How do you create the keyboard shortcut(F1) in a windows form using c#. WinChm
Jeff Moser
Add an event handler for a control's HelpRequested event and then use the Help.ShowHelp.
For example,
private void button1_HelpRequested(object sender, HelpEventArgs hlpevent)
{
Help.ShowHelp(this, "helpfile.chm", HelpNavigator.TopicId, "1234");
}
You can use different HelpNavigator options to show things like the table of contents, etc.
See this related question for more information.
来源：https://stackoverflow.com/questions/1029316/how-to-create-f1-help-in-windows-forms-using-c-sharp