Question webbrowser, click webpage button?

[assafey]

Hi,

I have an HTML text:

<input type="hidden" name="dl.start" value="Free" />

                        <img src="/img2/dl_langsam.gif">

                        <br />

                        <input type="submit" value="Free user" />                        

                    </form>

How can I click on this button called "Free User" with a vb. net code?



I tried to use the code bellow, but how can I get all the element IDs of the webbrowser and know which one belongs to Free User button?

WebBrowser1.Document.GetElementById(???).InvokeMember("Free User")

Thanks!

 

[JohnH]

Use the GetElementsByTagName method to get the input elements, look into each using the GetAttribute method to determine that you have the right element, then you invoke the "click" member.

 

[assafey]

Hi,

Thank you for your reply!

I tried to do this (bellow) but didn't get the any TagName ....

For Each i As HtmlElement In WebBrowser1.Document.links
Me.ListBox1.Items.Add(i.GetElementsByTagName("input"))
Next

or

For Each i As HtmlElement In WebBrowser1.Document.links
if i.name = "dl.start" then
     Me.ListBox1.Items.Add(i.TagName)
end if
Next

Can you be more specific?

 

[JohnH]

What has "links" got to do do with anything? Use GetElementsByTagName method for the element you want to query, for example the browser Document. GetElementsByTagName returns a HtmlElementCollection, which you can iterate with a loop, each element in the collection is a HtmlElement.

 

[assafey]

Thanks,

But, I just don't get it, sorry. Can you give me an example of a code that can

get me the TagName of a WebBrowser button?

I can't found a similar code in the net.

 

[assafey]

Hi,

I think I am starting to get the element idea. But, I tried the next code and nothing happands. No button was clicked. Why?

For Each element As HtmlElement In WebBrowser1.Document.GetElementsByTagName("input")
            Dim type As String = element.GetAttribute("type")
            If type = "submit" Then
                Me.ListBox1.Items.Add("Found")
                element.InvokeMember("Free user")
                Exit For
            End If
        Next

The first "submit" type has a "Free user" value in the HTML doc.

 

[JohnH]

then you invoke the "click" member

element.InvokeMember("Free user")

No HtmlElements has a "Free user" method, to make it "click" you have to invoke the "click" method as I said.

 

[assafey]

Thank you very much!

It is working smoothly



How can I mark this thread as RESOLVED?

 

[JohnH]

Excellent, I think you can edit first post in thread and change thread prefix to "answered" or something.

 

[assafey]

Ok thank you very very much