How to click a button on an ASP.NET web page programmatically?

Question

I am trying to figure out how to click a button on a web page programmatically.

Specifically, I have a WinForm with a WebBrowser control. Once it navigates to the targe

Answer 1

You can try and invoke the Page_ClientValidate() method directly through the clientscript instead of clicking the button, let me dig up an example.

Using MSHTML

mshtml.IHTMLWindow2 myBroserWindow = (mshtml.IHTMLWindow2)MyWebBrowser.Document.Window.DomWindow;
myBroserWindow.execScript("Page_ClientValidate();", "javascript");

Answer 2

try this button.focus System.Windows.Forms.SendKeys.Send("{ENTER}")

Answer 3

How does this work? Works for me

HtmlDocument doc = webBrowser1.Document;

doc.All["userIDTextBox"].SetAttribute("Value", "user1");
doc.All["userPasswordTextBox"].SetAttribute("Value", "Password!");
doc.All["logonButton"].InvokeMember("Click");

Answer 4

You posted a comment along the lines of not wanting to use a client side script on @Phunchak's answer. I think what you are trying to do is impossible. The only way to interact with the form is via a client side script. The C# code can only control what happens before the page is sent out to the browser.

Answer 5

Have you tried fireEvent instead of RaiseEvent?

Answer 6

Just a possible useful extra where the submit button has not been given an Id - as is frequently the case.

    private HtmlElement GetInputElement(string name, HtmlDocument doc) {
            HtmlElementCollection elems = doc.GetElementsByTagName("input");

            foreach (HtmlElement elem in elems)
            {
                String nameStr = elem.GetAttribute("value");
                if (!String.IsNullOrEmpty (nameStr) && nameStr.Equals (name))
                {
                    return elem;
                }
            }
            return null;
    }

So you can call it like so:

 GetInputElement("Login", webBrowser1.Document).InvokeMember("Click");

It'll raise an exception if the submit input with the value 'Login', but you can break it up if you want to conditionally check before invoking the click.