[英]How can I make JavaScript run in WebBrowser control?
In my winforms aplication I have a WebBrowser control named webBrowser1. 在我的winforms应用程序中,我有一个名为webBrowser1的WebBrowser控件。
In code all I added is navigating to a page: 在代码中我添加的所有内容都是导航到页面:
private void Form1_Load(object sender, EventArgs e)
{
webBrowser1.Navigate("http://localhost:6489/Default.aspx");
}
The code for the page to which I navigate is: 我导航的页面的代码是:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="TableRowShow.Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript">
window.onload = function()
{
document.getElementById('addDestination').setAttribute('onclick', 'addDest();');
}
function attach()
{
document.getElementById('addDestination').setAttribute('onclick', 'addDest();');
}
var i = 1; // position of next tr to be shown
function addDest()
{
var trs = document.getElementById('travelTable').getElementsByTagName('tr');
if (trs[i] != null)
trs[i++].style.display = "";
}
</script>
</head>
<body>
<form id="form1" runat="server">
<table id="travelTable">
<tr>
<td>
<asp:TextBox runat="server" />
</td>
</tr>
<tr style="display: none">
<td>
<asp:TextBox runat="server" />
</td>
</tr>
<tr style="display: none">
<td>
<asp:TextBox runat="server" />
</td>
</tr>
</table>
<asp:HyperLink runat="server" ID="addDestination"
ClientIDMode="Static" NavigateUrl="javascript:;" >
Add Destination
</asp:HyperLink>
</form>
</body>
</html>
Seen in a browser like IE or Chrome the page looks like this: 在IE或Chrome等浏览器中看到,页面如下所示:
Clicking on Add Destination anchor creates a new input: 单击“添加目标”锚点将创建一个新输入:
The problem that I'm having with WebBrowser control is that it loads the page but the JavaScript doesn't work. 我使用WebBrowser控件的问题是它加载页面但JavaScript不起作用。
If I click on Add Destination nothing happens, even though the same page works well in Chrome or IE. 如果我点击添加目的地没有任何反应,即使同一页面在Chrome或IE中运行良好。
Placing a breakpoint and using: 放置断点并使用:
webBrowser1.Document.InvokeScript("addDestination");
inside the Immediate window and then continuing to run the program activates the JavaScript in that function adding a new input. 在立即窗口内,然后继续运行程序激活该函数中的JavaScript添加新输入。
Thanks for replies! 谢谢你的回复!
尝试附加这样的点击处理程序,而不是在onload
和attach
函数中使用setAttribute
:
document.getElementById('addDestination').onclick = addDest;
您可以尝试将ScriptErrorsSuppressed
属性设置为false
以查看是否发生任何JavaScript错误。
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