如何点击一个ASP.NET网页上的按钮编程？ [英] How to click a button on an ASP.NET web page programmatically?

问题描述

我试图找出如何点击网页上的按钮编程。

具体来说，我有一个WebBrowser控件一个WinForm。一旦导航到目标ASP.NET登录页面我想要的工作，在DocumentCompleted事件处理程序，我有以下codeD：

 的HTMLDocument DOC = webBrowser1.Document;的HtmlElement用户ID = doc.GetElementById（userIDTextBox）;
userID.InnerText =USER1;的HtmlElement密码= doc.GetElementById（userPasswordTextBox）;
password.InnerText =密码;的HtmlElement按钮= doc.GetElementById（logonButton）;
button.RaiseEvent（的onclick）;
 

这填补了用户名和密码文本框罚款，但我没有任何成功获得该该死的按钮单击;我还试图点击，点击和的onClick - 还有什么？一个搜索当然MSDN中没有给我的线索，也没有groups.google.com。我得接近。或者，也许不会 - 有人告诉我，我应该调用页面的POST方法，但如何做到这一点并不给出的建议的一部分。

BTW的按钮是codeD：

 ＆LT;输入类型=提交名称=logonButtonVALUE =登录的onclick =如果（typeof运算（Page_ClientValidate）=='功能'）Page_ClientValidate（）;语言=JavaScript的ID =logonButton的tabindex =4/＆GT;
 

解决方案

这是如何工作的？对我的作品

 的HTMLDocument DOC = webBrowser1.Document;doc.All [userIDTextBox]的setAttribute（价值，USER1）;
doc.All [userPasswordTextBox]的setAttribute（价值，密码！）。
doc.All [logonButton] InvokeMember（点击）;
 

I am trying to figure out how to click a button on a web page programmatically.

Specifically, I have a WinForm with a WebBrowser control. Once it navigates to the target ASP.NET login page I'm trying to work with, in the DocumentCompleted event handler I have the following coded:

HtmlDocument doc = webBrowser1.Document;

HtmlElement userID = doc.GetElementById("userIDTextBox");
userID.InnerText = "user1";

HtmlElement password = doc.GetElementById("userPasswordTextBox");
password.InnerText = "password";

HtmlElement button = doc.GetElementById("logonButton");
button.RaiseEvent("onclick");

This fills the userid and password text boxes fine, but I am not having any success getting that darned button to click; I've also tried "click", "Click", and "onClick" -- what else is there?. A search of msdn of course gives me no clues, nor groups.google.com. I gotta be close. Or maybe not -- somebody told me I should call the POST method of the page, but how this is done was not part of the advice given.

BTW The button is coded:

<input type="submit" name="logonButton" value="Login" onclick="if (typeof(Page_ClientValidate) == 'function') Page_ClientValidate(); " language="javascript" id="logonButton" tabindex="4" />

解决方案

How does this work? Works for me

HtmlDocument doc = webBrowser1.Document;

doc.All["userIDTextBox"].SetAttribute("Value", "user1");
doc.All["userPasswordTextBox"].SetAttribute("Value", "Password!");
doc.All["logonButton"].InvokeMember("Click");

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