以下是WinForm中的代码
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Security.Permissions;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Xml;
using mshtml;
namespace Project3
{
[PermissionSet(SecurityAction.Demand, Name = "FullTrust")]
[System.Runtime.InteropServices.ComVisibleAttribute(true)]
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
//winForm调用js的前提
webBrowser1.ObjectForScripting = this;
}
public void btnSelect(String val) {
//javascript要调用winform时必须加这一句
this.webBrowser1.ObjectForScripting = this;
//MessageBox.Show(val, "winForm窗口");
//调用winform里面的调用XML方法
XmlDocument Xml = new XmlDocument();
//读取xml（project3.xml）
Xml.Load("project3.xml");
//获取根节点的所有子节点列表(sqldata)
XmlNodeList list = Xml.DocumentElement.GetElementsByTagName("sqldata");
//为了获取row的个数（for循环次数）
XmlNodeList list_1 = Xml.DocumentElement.GetElementsByTagName("row");
//foreach来遍历所有ReceiptFees为获取到val的同级Tag数据
foreach (XmlNode node in list)
{
for (int i = 0; i < list_1.Count; i++)
{
//遍历全部信息
if (val.Equals("全部"))
{
String s1 = node.ChildNodes[i].ChildNodes[0].InnerText;//No
String s2 = node.ChildNodes[i].ChildNodes[1].InnerText;//ReceiptFees
String s3 = node.ChildNodes[i].ChildNodes[2].InnerText;//MedicalContent
String s4 = node.ChildNodes[i].ChildNodes[3].InnerText;//price
String[] data = new String[4];
data[0] = s1; data[1] = s2; data[2] = s3; data[3] = s4;
this.webBrowser1.Document.InvokeScript("showdata", data);
}
else
{
//当ReceiptFees的值equals等于val的值时，将node的所有子节点打印到html页面
if (node.ChildNodes[i].ChildNodes[1].InnerText.Equals(val))
{
String s1 = node.ChildNodes[i].ChildNodes[0].InnerText;//No
String s2 = node.ChildNodes[i].ChildNodes[1].InnerText;//ReceiptFees
String s3 = node.ChildNodes[i].ChildNodes[2].InnerText;//MedicalContent
String s4 = node.ChildNodes[i].ChildNodes[3].InnerText;//price
String[] data = new String[4];
data[0] = s1; data[1] = s2; data[2] = s3; data[3] = s4;
this.webBrowser1.Document.InvokeScript("showdata", data);
}
}
}
}
}
以下是HTML代码：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>未缴费处方项目信息</title>
<link rel="stylesheet" href="style.css">
<script language="javascript" type="text/javascript">
function btnSelect()
{
//获取下拉框中的数据val
var val = document.getElementById("3").value;
//将下拉框获取到的费用数据传递给winform
window.external.btnSelect(val);
}
//被winForm调用来执行的方法（方法名与winForm中对应）
</script>
</head>
<body>
<div id="base" class="base">
<!-- 题头 -->
<div id="1" class="title">
<h2 class="head_font">下方是你未缴费处方项目信息</h2>
</div>
<!-- 选择 -->
<div id="2" class="choose">
<!-- 选择下拉框 -->
<div id="" class="second_1">
<select id="3" class="select">
<option value="全部">全部</option>
<option value="检查费">检查费</option>
<option value="西药费">西药费</option>
<option value="材料费">材料费</option>
</select>
</div>
<!-- 选择按钮 -->
<div id="" class="second_2">
<input id="4" class="input" type="submit" value="查询XML信息" onclick="btnSelect()" />
</div>
</div>
<!-- 表格 -->
<div class="table">
<table border="0" cellspacing="0" cellpadding="0" id="t_1">
<tr class="table_top">
<td>项目编号</td>
<td>项目类型</td>
<td>项目名称</td>
<td>项目价格</td>
</tr>
</table>
</div>
</div>
</body>
<script language="javascript" type="text/javascript">
function showdata(s1, s2, s3, s4) {
**//alert(s1); alert(s2); alert(s3); alert(s4); 经过测试这一句是执行成功的！**
var htmls = "<TR><TD>" + s1 + "</TD><TD>" + s2 + "</TD><TD>" + s3 + "</TD><TD>" + s4 + "</TD></TR>";
**document.getElementById("t_1").innerHTML += htmls;**//这一句执行失败，请各位帮帮忙看看为什么！
}
</script>
</html>
