如何在WebBrowser控件中提交表单？

how to programmatically set an input an element value inside a WebBrowser control?

如何以编程方式在WebBrowser控件中设置输入元素值?

For example, I have an HTML page, like:

例如,我有一个HTML页面,如:

<form method="post" action="...aspx" enctype="multipart/form-data" id="mainForm">
    <input type="file" id="file" />
    <input type="submit" id="submit" value="Submit it" />
</form>

How do I to submit it via C# code? I tried something:

如何通过C#代码提交?我试了一下:

private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e) 
{
   var doc = webBrowser1.Document;
   var input = doc.GetElementById("file");
   input.SetAttribute("value", @"C:\foo.baa");
   doc.GetElementById("mainForm").InvokeMember("submit");
}

but it does not working, the value of input is not setted and the form is not submited. I hope this is clean. Thanks in advance.

但它没有工作,输入的值没有设置,表单也没有提交。我希望这很干净。提前致谢。

2 个解决方案

#1

Try this:

HtmlElement loBtn = (HtmlElement)loWebBrowser.Document.GetElementById("btnSubmit");
loBtn .InvokeMember("click");

#2

Some suggestions you can find here

你可以在这里找到一些建议

Also have a look here

还看看这里

#1