<?xml version="1.0" encoding="utf-8"?>
<root>
<person name="webabcd" age="27" salary="33" />
</root>
html:
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<p>
姓名：<asp:TextBox ID="txtName" runat="server"></asp:TextBox>
年齡：<asp:TextBox ID="txtAge" runat="server"></asp:TextBox>
薪水：<asp:TextBox ID="txtSalary" runat="server"></asp:TextBox>
<asp:Button ID="btnAdd" runat="server" Text="添加" OnClick="btnAdd_Click" />
</p>
<asp:GridView ID="gvPerson" runat="server" DataKeyNames="name" OnSelectedIndexChanged="gvPerson_SelectedIndexChanged"
OnRowDeleting="gvPerson_RowDeleting" OnRowCancelingEdit="gvPerson_RowCancelingEdit"
OnRowEditing="gvPerson_RowEditing" OnRowUpdating="gvPerson_RowUpdating">
<Columns>
<asp:CommandField ShowSelectButton="True" ShowEditButton="True" ShowDeleteButton="True">
</asp:CommandField>
</Columns>
</asp:GridView>
<br />
<asp:DetailsView ID="dvPerson" runat="server" DataKeyNames="name">
</asp:DetailsView>
</form>
</body>
</html>後臺代碼：
public partial class WebForm2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
BindPerson();
}
}
private void BindPerson()
{
// 加載指定的xml文件
XDocument xml = XDocument.Load(Server.MapPath("~/Sample.xml"));
// 使用查詢語法獲取Person集合
var persons = from p in xml.Root.Elements("person")
select new
{
name = p.Attribute("name").Value,
age = p.Attribute("age").Value,
salary = p.Attribute("salary").Value
};
gvPerson.DataSource = persons;
gvPerson.DataBind();
}
protected void btnAdd_Click(object sender, EventArgs e)
{
// 加載指定的xml文件
XDocument xml = XDocument.Load(Server.MapPath("Sample.xml"));
// 創建需要新增的XElement對象
XElement person = new XElement(
"person",
new XAttribute("name", txtName.Text),
new XAttribute("age", txtAge.Text),
new XAttribute("salary", txtSalary.Text));
// 添加需要新增的XElement對象
xml.Root.Add(person);
// 保存xml
xml.Save(Server.MapPath("Sample.xml"));
gvPerson.EditIndex = -1;
BindPerson();
}
protected void gvPerson_SelectedIndexChanged(object sender, EventArgs e)
{
// 加載指定的xml文件
XDocument xml = XDocument.Load(Server.MapPath("Sample.xml"));
// 使用查詢語法獲取指定的Person集合
var persons = from p in xml.Root.Elements("person")
where p.Attribute("name").Value == gvPerson.SelectedValue.ToString()
select new
{
name = p.Attribute("name").Value,
age = p.Attribute("age").Value,
salary = p.Attribute("salary").Value
};
dvPerson.DataSource = persons;
dvPerson.DataBind();
}
protected void gvPerson_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
// 加載指定的xml文件
XDocument xml = XDocument.Load(Server.MapPath("Sample.xml"));
// 使用查詢語法獲取指定的Person集合
var persons = from p in xml.Root.Elements("person")
where p.Attribute("name").Value == gvPerson.DataKeys[e.RowIndex].Value.ToString()
select p;
// 刪除指定的XElement對象
persons.Remove();
// 保存xml
xml.Save(Server.MapPath("Sample.xml"));
gvPerson.EditIndex = -1;
BindPerson();
}
protected void gvPerson_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
// 加載指定的xml文件
XDocument xml = XDocument.Load(Server.MapPath("Sample.xml"));
// 使用查詢語法獲取指定的Person集合
var persons = from p in xml.Root.Elements("person")
where p.Attribute("name").Value == gvPerson.DataKeys[e.RowIndex].Value.ToString()
select p;
// 更新指定的XElement對象
foreach (XElement xe in persons)
{
xe.SetAttributeValue("age", ((TextBox)gvPerson.Rows[e.RowIndex].Cells[2].Controls[0]).Text);
xe.SetAttributeValue("salary", ((TextBox)gvPerson.Rows[e.RowIndex].Cells[3].Controls[0]).Text);
}
// 保存xml
xml.Save(Server.MapPath("Sample.xml"));
gvPerson.EditIndex = -1;
BindPerson();
}
protected void gvPerson_RowEditing(object sender, GridViewEditEventArgs e)
{
gvPerson.EditIndex = e.NewEditIndex;
BindPerson();
}
protected void gvPerson_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
gvPerson.EditIndex = -1;
BindPerson();
}
}