Help on Invoking Click Event

Isip2

Hi!

I am currently doing a project that involves automated logging-in on web accounts. I used the webBrowser control for this purpose and so far everything is working fine.

However, the method I use is: webBrowser1.Document.GetElementById("btnSubmitURL").InvokeMember("click");

The problem comes in when the button elements do not have name or id properties. Is there a way to invoke the click event without knowing the name or id of the button element?

The only other method I know is GetElementFromPoint(), but it would be good if there is another way since this method requires knowledge on the coordinates of the button.

Thanks everyone.

Psightoplazm

Well you obviously can't tell something to click itself without knowing who to tell - but what the WebBrowser does do for you is it breaks everything down into a complete DOM hierachy. If you can identify anything about the structure of the page - like is it inside a table that has a particular name or whatever, then you can find your control.

I think what you are looking for is just being able to submit a "Form" block element - and you can actually do that directly off of the form. You can also search for the only "submit" inside the child hierarchy the form.

[code]
var m = new WebBrowser();
m.Navigate("www.somewhere.com");
m.DocumentCompleted +=
delegate
{
// Grab the form and submit it
var form = m.Document.GetElementById("MyForm");
form.InvokeMember("submit");

// or you can find the submit button inside the form...
var controls = form.GetElementsByTagName("input");
foreach (var c in controls.Cast())
if (c.GetAttribute("type") == "submit")
c.InvokeMember("click");
};

[/code]

><//~Psightoplasm`~

Isip2

Wow great help.
I better start thinking some more so I won't miss solutions like this.

Thanks again Psightoplazm, I think this should work.

Isip2

Hi!

I have a hopefully more difficult problem at hand. Is there a way to retrieve a dynamic image, say a banner, directly from the webBrowser control? It should be retrieved without making an additional web request since an additional request would change the image.

For a more specific example, how can I load an image shown in the WebBrowser control into a PictureBox? The use of the ImageLocation property will not work since it will request the image from the server.

Any idea?

Thanks.