C# WebBrowser invoke JavaScript

Question

I'm trying to run a JavaScript function on a webpage from my C# codes.

This is the code from the website:

<div class="class34" onclick="sendpost(8);"></div><div class="class34" onclick="sendpost(9);"></div>
function sendpost(valg) {
    valget = {};
    valget.rane = valg
    poststuff('snas',valget, function(back) {
        $('#return').html(back.html);
    });
}

And this is the code I've tried to run it in C#:

webBrowser1.Document.InvokeScript("sendpost(8)");

and the result is that the code does nothing, I've been searching for the correct code to use but can't figure out what I'm doing wrong here.

How can I make my webBrowser1 either click or run the sendpost(8) function?

Jon P · Accepted Answer · 2020-02-02 21:58:40Z

2

Documentation is you friend.

Go with:

Object[] args = new Object[1];
args[0] = 8;

webBrowser1.Document.InvokeScript("sendpost", args);

This will run the sendpost javascript method with the valg parameter/argument set to 8

edited Feb 2, 2020 at 21:58

answered Feb 2, 2020 at 21:45

Jon P

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2 Comments

Patric Nøis Over a year ago

CS0103 The name 'newObject' does not exist in the current context

Jon P Over a year ago

Sorry, typo ... should be new Object

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