C#對XML進(jìn)行增刪改查操作(可封裝)(精)

1、xml 文件格式view pla in copy to clipboardpr int?熊貓123456pan asfdsafasdfasdfsad 我是內(nèi)容2009-10-1熊貓123456pan asfdsafasdfasdfsad2009-10-1增加view pla in copy to clipboardpr int?XmlDocume nt xmld = new XmlDocume nt(;xmld.Load(Server.MapPath(App_Code/Message.xml;XmlNode root = xmld.SelectSingleNode(messageList;/查

2、找 messageList 節(jié)點(diǎn) int i= xmld.SelectSi ngleNode(messageList.ChildNodes.Cou nt + 1;我是內(nèi)容加載 xml 文件XmlEleme nt xml0 = xmld.CreateEleme nt(message;xml0.SetAttribute(id, i.ToStri ng(;XmlElement xml1 = xmld.CreateElement(Name;創(chuàng)建一個 Name 節(jié)點(diǎn)xml1 .Inn erText = this.txtName.Value.Trim(;xmlO.Appe ndChild(xml1; 添加

3、XmlElement xml2 = xmld.CreateElement(QQ;創(chuàng)建 QQ 節(jié)點(diǎn)xml2.I nn erText = this.txtQQ.Value.Trim(;xml0.Appe ndChild(xml2; 添加XmlElement xml3 = xmld.CreateElement(Email;創(chuàng)建一個 Email 節(jié)點(diǎn)xml3 .Inn erText = this.txtEmail.Value.Trim(;xml0.Appe ndChild(xml3; 添加XmlElement xml4 = xmld.CreateElement(Content;創(chuàng)建一個 Content

4、 節(jié)點(diǎn)xml4 .Inn erText = this.txtC onten t.Value;xml0.Appe ndChild(xml4; 添加XmlElement xml5 = xmld.CreateElement(Time;創(chuàng)建一個 Time 節(jié)點(diǎn)xml5.I nn erText = DateTime.Now.ToStri ng(yyyy-MM-dd;xml0.Appe ndChild(xml5; 添加root.Appe ndChild(xmlO;xmld.Save(Server.MapPath(App_Code/Message.xml;XmlDocume nt xmld = new Xm

5、lDocume nt(;xmld.Load(Server.MapPath(App_Code/Message.xml;加載 xml 文件XmlNode root = xmld.SelectSingleNode(messageList;查找 messageList 節(jié)點(diǎn)int i = xmld.SelectSi ngleNode(messageList.ChildNodes.Cou nt + 1;XmlEleme nt xmlO = xmld.CreateEleme nt(message;xmlO.SetAttribute(id, i.ToStri ng(;XmlElement xml1 = xm

6、ld.CreateElement(Name;創(chuàng)建一個 Name 節(jié)點(diǎn)xml1 .Inn erText = this.txtName.Value.Trim(;xmlO.Appe ndChild(xml1; 添加XmlElement xml2 = xmld.CreateElement(QQ;創(chuàng)建 QQ 節(jié)點(diǎn)xml2.I nn erText = this.txtQQ.Value.Trim(;xml0.Appe ndChild(xml2; 添加XmlElement xml3 = xmld.CreateElement(Email;創(chuàng)建一個 Email 節(jié)點(diǎn)xml3 .Inn erText = this.

7、txtEmail.Value.Trim(;xml0.Appe ndChild(xml3; 添加XmlElement xml4 = xmld.CreateElement(Content;創(chuàng)建一個 Content 節(jié)點(diǎn)xml4 .Inn erText = this.txtC onten t.Value;xml0.Appe ndChild(xml4; 添加XmlElement xml5 = xmld.CreateElement(Time;創(chuàng)建一個 Time 節(jié)點(diǎn)xml5.I nn erText = DateTime.Now.ToStri ng(yyyy-MM-dd;xml0.Appe ndChild

8、(xml5; 添加root.Appe ndChild(xmlO;xmld.Save(Server.MapPath(App_Code/Message.xml;刪除view pla in copy to clipboardpr int?XmlDocume nt xmld = new XmlDocume nt(;xmld.Load(Server.MapPath(App_Code/Message.xml;XmlNodeList list = xmld.SelectSi ngleNode(messageList.ChildNodes;foreach (XmlNode var in listXmlElem

9、e nt xmle = (XmlEleme ntvar;if (xmle.GetAttribute(id = Id/ 如果 ID 等于文本的值就刪除xmle.RemoveAll(;xmld.Save(Server.MapPath(App_Code/Message.xml; 刪除后記得一定要保存Page.ClientScript.RegisterStartupScript(GetType(, , alert( 刪除成功！!;，true; elsePage.ClientScript.RegisterStartupScript(GetType(, , alert(刪除失敗!;, true;XmlDo

10、cume nt xmld = new XmlDocume nt(;xmld. Load(Server.MapPath(App_Code/Message.xml;XmlNodeList list = xmld.SelectSi ngleNode(messageList.ChildNodes;foreach (XmlNode var in listXmlEleme nt xmle = (XmlEleme ntvar;if (xmle.GetAttribute(id = Id/ 如果 ID 等于文本的值就刪除xmle. RemoveAll(;xmld.Save(Server.MapPath(App_

11、Code/Message.xml; 刪除后記得一定要保存Page.ClientScript.RegisterStartupScript(GetType(, , alert( 刪除成功！!;，true;elsePage.ClientScript.RegisterStartupScript(GetType(, , alert( 刪除失敗!;, true;更改view pla in copy to clipboardpr int?XmlDocume nt xmld = new XmlDocume nt(;xmld.Load(Server.MapPath(App_Code/Message.xml;Xm

12、lNodeList list = xmld.SelectSingleNode(messageList.ChildNodes;foreach (XmlNode xmln in listXmlEleme nt xmle = (XmlEleme ntxml n; 格式轉(zhuǎn)換if (RequestID.Equals(xmle.GetAttribute(id xmle.ChildNodesO.l nn erText = this.txtName.Value;xmle.ChildNodes1.l nn erText = this.txtQQ.Value;xmle.ChildNodes2.l nn erTex

13、t = this.txtEmail.Value;xmle.ChildNodes3.l nn erText = this.txtCo nte nt.Value;xmld.Save(Server.MapPath(App_Code/Message.xml;Page.Clie ntScript.RegisterStartupScript(this.GetType(, , alert(修改成功！ ！;locati on .href=MessageList.aspx,true;XmlDocume nt xmld = new XmlDocume nt(;xmld. Load(Server.MapPath(A

14、pp_Code/Message.xml;XmlNodeList list = xmld.SelectSi ngleNode(messageList.ChildNodes;foreach (XmlNode xmln in listXmlEleme nt xmle = (XmlEleme ntxml n; 格式轉(zhuǎn)換if (RequestID.Equals(xmle.GetAttribute(idxmle. ChildNodes0.l nn erText = this.txtName.Value;xmle.ChildNodes1.l nn erText = this.txtQQ.Value;xmle

15、.ChildNodes2.l nn erText = this.txtEmail.Value;xmle.ChildNodes3.l nn erText = this.txtCo nte nt.Value;xmld.Save(Server.MapPath(App_Code/Message.xml;Page.Clie ntScript.RegisterStartupScript(this.GetType(, , alert(修改成功！ ！;locati on .href=MessageList.aspx,true;查詢 |view pla in copy to clipboardpr int?/下

16、面的代碼開始是用頁面編碼的方式實(shí)現(xiàn)的XmlDocument xmld = new XmlDocument(;構(gòu)建 xml 文檔xmld.Load(Server.MapPath(App_Code/Message.xml;加載XmlNodeList list = xmld.SelectS in gleNode(messageList.ChildNodes;/獲取子節(jié)點(diǎn)if (list!=null foreach (XmlNode node in listXmlEleme nt xmle = (XmlEleme ntno de;/ 轉(zhuǎn)換/這里到時候明天補(bǔ)上/.XmlNodeReader reader = n ull;trystri ng s =;XmlDocume nt doc = new XmlDocume nt (;/裝入指定的 XML 文檔桌面 1.xml;/設(shè)定 XmlNodeReader 對象來打開 XML 文件 reader = new XmlNodeReader ( doc ;/讀取 XML 文件中的數(shù)據(jù)，并顯示岀來while ( reader.Read (/判斷當(dāng)前讀取得節(jié)點(diǎn)類型sw