Execute javascript or C# code on webcontrol

Question

I'm making an Windows Form Application in C# with Visual Studio 2010.

What I want to do, is to go to an page with the webbrowser control, and then insert an value in an input box, and submit the form.

The navigating part isn't that hard, and is already handled. But i can't get the text inserting working...

The problem is that the input doesn't have in ID, only the name.

In JQuery the code will looks like this:

$('input[name="searchstring"]').val("hoi");

But how would that look in C# code? (or combi of C# and Javascript / Jquery)

I already have this code:

HtmlElementCollection playerSearchBox = webBrowserSearchPlayer.Document.GetElementsByTagName("searchstring");
playerSearchBox[0].InnerText = "hoi";

The error that I get with that C# code is as follow:

Value '0' is not valid for 'index'. 'index' should be between 0 and -1. parameters name: index

GetElementsByTagName would get the element if you had <searchstring> tag. — L.B
– L.B, Commented Nov 30, 2012 at 9:57
@L.B, ofcourse, how stupid of me i didn't think about that.. — Mathlight
– Mathlight, Commented Nov 30, 2012 at 9:58
@L.B, if you make an answer of that, and add this to it, i can mark that as the answer ;) HtmlElementCollection playerSearchBox = webBrowserSearchPlayer.Document.GetElementsByTagName("input"); playerSearchBox[2].InnerText = "hoi"; — Mathlight
– Mathlight, Commented Nov 30, 2012 at 10:14

L.B · Accepted Answer · 2012-11-30 10:17:38Z

1

It can be something like this.

var input = webBrowserSearchPlayer.Document.GetElementsByTagName("input")
                    .Cast<HtmlElement>()
                    .FirstOrDefault(i => i.GetAttribute("name") == "searchstring");

answered Nov 30, 2012 at 10:17

L.B

116k20 gold badges189 silver badges229 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Mathlight Over a year ago

Well, thank's for thinking, but is that code better than this:

HtmlElementCollection playerSearchBox = webBrowserSearchPlayer.Document.GetElementsByTagName("input");                 playerSearchBox[2].InnerText = "hoi";

L.B Over a year ago

@MarcMeesters I think not hardcoding 2 would be better.

Collectives™ on Stack Overflow

Execute javascript or C# code on webcontrol

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related