C#操作GridView控件

<?xml version="1.0" encoding="utf-8"?> <gunbook>   <gun type="自动步枪" gid="001">     <name>AK-47</name>     <from>俄罗斯</from>     <clip>30</clip>     <accurate>0.2</accurate>     <range>300M</range>   </gun>   <gun type="狙击枪" gid="002">     <name>AWM</name>     <from>英国</from>     <clip>10</clip>     <accurate>1</accurate>     <range>1000M</range>   </gun>   <gun type="冲锋枪" gid="003">     <name>MP5</name>     <from>美国</from>     <clip>80</clip>     <accurate>0.1</accurate>     <range>280M</range>   </gun>   <gun type="霰弹枪" gid="004">     <name>气锤</name>     <from>德国</from>     <clip>10</clip>     <accurate>0.2</accurate>     <range>120M</range>   </gun> </gunbook>

 //定义一个枪的数据模型类 public class GunModel {  public GunModel() { }  //枪的名称  public string GunName { get; set; }  //枪的类型  public string GunType { get; set; }  //枪的编号  public string GunID { get; set; }  //枪的产地  public string GunFrom { get; set; }  //枪的弹夹  public string GunClip { get; set; }  //枪的精准度  public string GunAccurate { get; set; }  //枪的射程  public string GunRange { get; set; } } 

using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Xml; using System.IO; namespace AboutXML {  public partial class Gun : System.Web.UI.Page  {   protected void Page_Load(object sender, EventArgs e)   {    TextBox1.Enabled = true;    if (!Page.IsPostBack)     {     OperationXML("select", "");    }   }     //查询   protected void Button1_Click(object sender, EventArgs e)   {    OperationXML("select", "");   }   //添加   protected void Button2_Click(object sender, EventArgs e)   {    //在后台改变控件的样式    //Button2.Attributes.Add("style", "background-color:red;");//这是方式1，按照Css的样式进行改变    //Button2.Style.Add("Color", "blue");//这是方式2，按照控件自带属性进行改变    if (TextBox1.Text.Trim() == "") //编号必须存在    {     Response.Write("<script>alert('请填写要添加数据')</script>");     return;    }    OperationXML("create", "");    ClearControl();//清空文本框   }   //修改   protected void Button3_Click(object sender, EventArgs e)   {    if (TextBox1.Text.Trim() == "") //编号必须存在    {     Response.Write("<script>alert('请在要修改的行上点击“编辑”后重试！')</script>");     return;    }    XmlDocument xmldoc = new XmlDocument();//添加一个xml文档对象    xmldoc.Load(GetXMLPath());//加载文档     XmlNode gunroot = xmldoc.SelectSingleNode("gunbook");//获取根节点    string conditionPath = "/gunbook/gun[@gid=/"" + TextBox1.Text + "/"]";//XML获取节点的条件，格式固定，如果想要添加属性还可以用“and @属性=属性值” 操作    XmlNode updateNode = xmldoc.SelectSingleNode(conditionPath);//根据条件获取一个节点    if (updateNode != null && updateNode.ChildNodes != null && updateNode.ChildNodes.Count == 5)    {     updateNode.ChildNodes.Item(0).InnerText = TextBox2.Text;//名称     updateNode.Attributes.GetNamedItem("type").InnerText = TextBox3.Text;//类型     updateNode.ChildNodes.Item(1).InnerText = TextBox4.Text;//产地     updateNode.ChildNodes.Item(2).InnerText = TextBox5.Text;//弹夹     updateNode.ChildNodes.Item(3).InnerText = TextBox6.Text;//精准     updateNode.ChildNodes.Item(4).InnerText = TextBox7.Text;//射程    }    SaveXML(xmldoc);//保存文件并刷新当前页面     ClearControl();//清空文本框   }   /// <summary>   /// 清空控件值   /// </summary>   private void ClearControl()    {    TextBox1.Text = TextBox2.Text = TextBox3.Text = TextBox4.Text = TextBox5.Text = TextBox6.Text = TextBox7.Text = "";   }   /// <summary>   /// 操作XML类的公共方法 Response.Write("<script>alert('"++"')</script>");   /// </summary>   /// <param name="opname">操作类型名称，select/create/update/delete</param>   /// <param name="commandAugument">操作参数，这里传入的是主键gunid</param>   private void OperationXML(string opname,string commandAugument)    {    XmlDocument xmldoc = new XmlDocument();//添加一个xml文档对象    xmldoc.Load(GetXMLPath());//加载文档     XmlNode gunroot = xmldoc.SelectSingleNode("gunbook");//获取根节点    switch (opname)     {     case "select"://查询      #region      List<GunModel> gunList = new List<GunModel>();//定义一个枪的集合      if (gunroot != null && gunroot.ChildNodes.Count > 0)      {       XmlNodeList childList;       foreach (XmlNode child in gunroot.ChildNodes)//循环所有子节点       {        //第一种，直接通过XmlNode获取属性值        string type = child.Attributes.GetNamedItem("type").InnerText;        string id = child.Attributes.GetNamedItem("gid").InnerText;        //第二种，通过XmlElement获取属性值        //XmlElement xmlatt = (XmlElement)child;        //string type = xmlatt.GetAttribute("type");        //string id = xmlatt.GetAttribute("gid");         GunModel gunmodel = new GunModel();        gunmodel.GunType = type;        gunmodel.GunID = id;        childList = child.ChildNodes;        if (childList != null && childList.Count == 5)        {         gunmodel.GunName = childList.Item(0).InnerText;//名称         gunmodel.GunFrom = childList.Item(1).InnerText;//产地         gunmodel.GunClip = childList.Item(2).InnerText;//弹夹         gunmodel.GunAccurate = childList.Item(3).InnerText;//精准         gunmodel.GunRange = childList.Item(4).InnerText;//射程        }        else         {         gunmodel.GunName = "no data";         gunmodel.GunFrom = "no data";         gunmodel.GunClip = "no data";         gunmodel.GunAccurate = "no data";         gunmodel.GunRange = "no data";        }        gunList.Add(gunmodel);//将枪对象添加到枪集合中       }//foreach (XmlNode child in gunroot.ChildNodes) end        GridView1.DataSource = gunList;//绑定数据源       GridView1.DataBind();      }//if (gunroot != null && gunroot.ChildNodes.Count > 0) end     #endregion      break;     case "create"://增加      #region      XmlElement createElement = xmldoc.CreateElement("gun");//创建一个枪的节点元素      createElement.SetAttribute("type", TextBox3.Text);//类型      createElement.SetAttribute("gid", TextBox1.Text);//编号      XmlNode createNode = (XmlNode)createElement;      gunroot.AppendChild(createNode);//       XmlElement createElementChildName = xmldoc.CreateElement("name");//名称      createElementChildName.InnerText = TextBox2.Text;//值      createElement.AppendChild(createElementChildName);       XmlElement createElementChildFrom = xmldoc.CreateElement("from");//产地      createElementChildFrom.InnerText = TextBox4.Text;//值      createElement.AppendChild(createElementChildFrom);       XmlElement createElementChildClip = xmldoc.CreateElement("clip");//弹夹      createElementChildClip.InnerText = TextBox5.Text;//值      createElement.AppendChild(createElementChildClip);       XmlElement createElementChildAccurate = xmldoc.CreateElement("accurate");//精准      createElementChildAccurate.InnerText = TextBox6.Text;//值      createElement.AppendChild(createElementChildAccurate);       XmlElement createElementChildRange = xmldoc.CreateElement("range");//射程      createElementChildRange.InnerText = TextBox7.Text;//值      createElement.AppendChild(createElementChildRange);      SaveXML(xmldoc);//保存文件并刷新当前页面      #endregion      break;     case "update"://修改      #region      string conditionPath = "/gunbook/gun[@gid=/"" + commandAugument + "/"]";//XML获取节点的条件，格式固定，如果想要添加属性还可以用“and @属性=属性值” 操作      XmlNode updateNode = xmldoc.SelectSingleNode(conditionPath);//根据条件获取一个节点      TextBox1.Text = commandAugument;//编号      if (updateNode != null && updateNode.ChildNodes != null && updateNode.ChildNodes.Count == 5)      {       TextBox2.Text = updateNode.ChildNodes.Item(0).InnerText;//名称       TextBox3.Text = updateNode.Attributes.GetNamedItem("type").InnerText;//类型       TextBox4.Text = updateNode.ChildNodes.Item(1).InnerText;//产地       TextBox5.Text = updateNode.ChildNodes.Item(2).InnerText;//弹夹       TextBox6.Text = updateNode.ChildNodes.Item(3).InnerText;//精准       TextBox7.Text = updateNode.ChildNodes.Item(4).InnerText;//射程      }      else       {       TextBox2.Text = "";       TextBox3.Text = "";       TextBox4.Text = "";       TextBox5.Text = "";       TextBox6.Text = "";       TextBox7.Text = "";      }      #endregion      break;     default://删除      #region      string conditionPath2 = "/gunbook/gun[@gid=/"" + commandAugument + "/"]";//XML获取节点的条件，格式固定，如果想要添加属性还可以用“and @属性=属性值” 操作      XmlNode deleteNode = xmldoc.SelectSingleNode(conditionPath2);//根据条件获取一个节点      if (deleteNode != null)       {       deleteNode.ParentNode.RemoveChild(deleteNode);//移除当前节点      }      SaveXML(xmldoc);//保存文件并刷新当前页面      #endregion      break;    }   }//function end   /// <summary>   /// 获取xml文件路径   /// </summary>   /// <returns></returns>   private string GetXMLPath()    {    string xmlPath = Server.MapPath("Gun.xml");    return xmlPath;   }   /// <summary>   /// 保存XML文件   /// </summary>   /// <param name="xmldoc">xml文件名称</param>   private void SaveXML(XmlDocument xmldoc)    {    xmldoc.Save(GetXMLPath());    OperationXML("select", "");//刷新页面   }   protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)   {    if (e.CommandName == "upd")//编辑    {     TextBox1.Enabled = false;//编号不能编辑，否则失去主键意义     string guid = e.CommandArgument.ToString();     OperationXML("update", e.CommandArgument.ToString());     //GridViewRow gvr = (GridViewRow)(((LinkButton)(e.CommandSource)).Parent.Parent);//当前控件所在行     //int j = gvr.RowIndex;//当前控件所在行的 Index，即行的位置    }    else //del，删除    {     OperationXML("delete",e.CommandArgument.ToString());    }   }   //分页   protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)   {    GridView1.PageIndex = e.NewPageIndex;    OperationXML("select", "");//绑定数据源   }  } }