invoke button submit using webkitbrowser

how to invoke form button submit on WebKitWebBrowser using c# code behind? i can find the control using

webKitBrowser.Document.GetElementById("Email").SetAttribute("value", "argeure");

but 开发者_运维问答is ther any method to call like this?

webKitBrowser.Document.GetElementById("signIn").Invoke("click");

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You should do it with javascript. ie write some js to the WebKitWebBrowser, which gets the form element and calls on .submit() on it.