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Change the HTML of a page Options
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hmireault
Posted: Tuesday, July 15, 2014 9:02:01 AM
Rank: Advanced Member
Groups: Member

Joined: 7/14/2014
Posts: 52
Hello,

I know that, using the webView's "evalscript" function, I can execute Javascript which can change the inner HTML of a webpage.

I was wondering if it was possible to directly change the HTML that the webView contains. I can do that with a System.Windows.Forms.WebBrowser object by doing this:

Code: C# 
HtmlDocument htmlDocument = webBrowser.Document;
    List<HtmlElement> elements = htmlDocument.All.Cast<HtmlElement>().Where( CONDITION ).ToList();

    foreach (HtmlElement element in elements)
    {
          element.SetAttribute("value", myValue);
    }


Basically, is there an equivalent to the System.Windows.Forms.WebBrowser's "Document" property that I could edit in such a way in EO.WebBrowser?

Thanks in advance.
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eo_support
Posted: Tuesday, July 15, 2014 5:29:50 PM
Rank: Administration
Groups: Administration

Joined: 5/27/2007
Posts: 24,196
Hi,

You can do that with something like this:

Code: C# 
//Get document.all collection
JSObject all = webView1.GetDOMWindow().document["all"] as JSObject;

//Get number of items in the collection
int length = (int)all["length"];

//Loop through each item and set the property value
for (int i = 0; i < length; i++)
{
    JSObject item = all[i.ToString()] as JSObject;
    item["value"] = myValue;
}


The code is slightly more cumbersome than the IE version. We are adding a few methods in our next build so that you will be able to use code like this in the next build:

Code: C# 
//Get document.all collection
JSArray all = (webView1.GetDOMWindow().document["all"] as JSObject).ToArray();

//Loop through each item and set the property value
for (int i = 0; i < all.Length; i++)
{
    JSObject item = all[i] as JSObject;
    item["value"] = myValue;
}


Hope this helps. Please feel free to let us know if you have any more questions.

Thanks!
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hmireault
Posted: Wednesday, July 16, 2014 8:30:47 AM
Rank: Advanced Member
Groups: Member

Joined: 7/14/2014
Posts: 52
We opted to use Javascript in this case, but this will be useful in the future.

Thank you very much for your quick reply!
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eo_support
Posted: Wednesday, July 16, 2014 9:17:10 AM
Rank: Administration
Groups: Administration

Joined: 5/27/2007
Posts: 24,196
You are very welcome. Please feel free to let us know if there is anything else.

Thanks!
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