如何使用WPF web浏览器发布数据到Web服务器 [英] How to post data to a web server using wpf webbrowser

问题描述

我想从数据库中获取数据，并用它来登录用户到网站。

I want to get data from a database and use it to login a user to a web site.

我有拥有Web浏览器控件一个WPF页面。我有这个代码，登录用户是用PHP编写的网站：

I have a wpf page that holds a web browser control. and I have this code that login user to web site which is written in php:

<form action='http://www.asite.net/index.php' method='post' name='frm'>
<?php
$user = $_GET['u'];
$pass = $_GET['p'];
echo "<input type='text' name='user' value='$user'>";
echo "<input type='text' name='pass' value='$pass'>";
?>
<input type='submit' name='submit' value='submit'>
</form>

我怎么能做到这一点在WPF？至于我能理解，我需要创建一个html并将其张贴到网站。

How can I do this in wpf? As far as I can understand, I need to create an html and post it to site.

我的问题：

1 - 我怎么可以在代码中创建这样的HTML

1- How can I create such html in code?

2 - 我如何自动提交到网站（假设我是一个WPF用户控件的构造函数中做这个）。

2- How can I automatically submit it to the site (assuming I am doing this on constructor of a wpf user control).

推荐答案

据我了解，你的目标是登录并保持会话活跃 web浏览器里面。如果是这样，你有几个选择：

As far as I understand, your goal is to log in and keep the session active inside the WebBrowser. If so, you have a few options:

• 首先，浏览<$​​ C $ C> web浏览器到 www.asite.net ，建立会话。

然后获得<一个HREF =http://stackoverflow.com/a/18289217/1768303>底层web浏览器ActiveX控件并使用的 的IWebBrowser2 :: Navigate2 方法，它具有的PostData 参数，允许做一个HTTP POST请求。

Then obtain the underlying WebBrowser ActiveX control and use IWebBrowser2::Navigate2 method, it has PostData parameter which allows to do an HTTP POST request.

或者注入并执行它将使用的 =http://msdn.microsoft.com/en-us/library/ie/ms535874%28v=vs.85%29的.aspx相对=nofollow> XHR 张贴的形式AJAX方法。

Or, inject and execute some JavaScript which would use XHR to post the form the AJAX way.

或者使用 web浏览器.Document 为动态以创建一个隐藏的格式元素，填充它，然后提交，以同样的方式你会做的JavaScript 。

Or, use WebBrowser.Document as dynamic to create a hidden form element, populate it and submit it, in the same way you'd do with JavaScript.

或使用的 COM XMLHTTP 对象来发送POST请求，这股与会话的 web浏览器。

您也可以使用一些低级别的URLmon API 来发送POST请求。

You could also use some low level UrlMon API to send a POST request.

更新，这里是创建和提交的例子：

Updated, here is an example of creating and submitting a :

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
        this.Loaded += MainWindow_Loaded;
    }

    void MainWindow_Loaded(object sender, RoutedEventArgs e)
    {
        NavigatedEventHandler handler = null;
        handler = delegate
        {
            this.webBrowser.Navigated -= handler;

            dynamic document = this.webBrowser.Document;
            var form = document.createElement("form");
            form.action = "http://requestb.in/tox7drto";
            form.method = "post";

            var input = document.createElement("input");
            input.type = "text";
            input.name = "name_1";
            input.value = "value_1";
            form.appendChild(input);

            input = document.createElement("input");
            input.type = "submit";
            form.appendChild(input);

            document.body.appendChild(form);
            input.click();
        };

        this.webBrowser.Navigated += handler;
        this.webBrowser.Navigate("about:blank");
    }
}

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