編寫此案例的目的是為了描述在普通的應(yīng)用程序中如何運(yùn)用dom技術(shù)以及對(duì)上一篇文章《c#中使用xml——實(shí)現(xiàn)dom》中所講述的dom的相關(guān)知識(shí)回顧一下,本案例將分析一個(gè)聯(lián)系人應(yīng)用程序,在這里將xml文檔充當(dāng)數(shù)據(jù)庫(kù)來(lái)使用, 所有的聯(lián)系人信息存儲(chǔ)在xml文檔中，同時(shí)，在程序中使用dom對(duì)聯(lián)系人文檔進(jìn)行查詢、編輯、更新等操作。具體來(lái)說(shuō)本案例將實(shí)現(xiàn)以下功能：
1． 添加一個(gè)新的聯(lián)系人
2． 修改現(xiàn)有聯(lián)系人
3． 刪除現(xiàn)有聯(lián)系人
4． 按姓氏查詢聯(lián)系人
5． 按名字查詢聯(lián)系人
6． 將所有聯(lián)系人導(dǎo)出到另一個(gè)xml文件
7． 將聯(lián)系人從另一個(gè)xml文件導(dǎo)入
以下是程序運(yùn)行效果圖：
應(yīng)用程序主窗體：
添加聯(lián)系人窗體：
修改聯(lián)系人窗體：
以下是用于測(cè)試程序的xml文件：
contact.xml 將該文件保存在項(xiàng)目目錄下
<?xml version="1.0" encoding="gb2312"?>
<contactdetails>
<contact>
<name>
<first>steven</first>
<last>perez</last>
</name>
<note>[email protected];system at http://www.details.net/token</note>
</contact>
<contact>
<name>
<first>billoys</first>
<last>perez</last>
</name>
<note>[email protected];system at http://www.billoys.com/billoys.htm</note>
</contact>
<contact>
<name>
<first>劉</first>
<last>羅鍋</last>
</name>
<note>古代人</note>
</contact>
</contactdetails>
contact2.xml 該文件用于實(shí)現(xiàn)導(dǎo)入聯(lián)系人功能，將該文件隨便保存在一個(gè)目錄下然后將保存路徑連同文件名拷貝到主窗體的“保存的路徑”文本框中再單擊“導(dǎo)入”按紐即可實(shí)現(xiàn)導(dǎo)入功能。
<?xml version="1.0" encoding="gb2312"?>
<contactdetails>
<contact>
<name>
<first>steven</first>
<last>perez</last>
</name>
<note>[email protected];system at http://www.details.net/token</note>
</contact>
<contact>
<name>
<first>billoys</first>
<last>perez</last>
</name>
<note>[email protected];system at http://www.billoys.com/billoys.htm</note>
</contact>
<contact>
<name>
<first>劉</first>
<last>德華</last>
</name>
<note>香港著名藝人，工作勤懇同時(shí)不忘生活，出演電影100多部，演技已達(dá)登峰造極，刻畫人物栩栩如生</note>
</contact>
<contact>
<name>
<first>揚(yáng)</first>
<last>震</last>
</name>
<note>重案六組探員，為人膽大心細(xì)，沉著冷靜，富有人情味，經(jīng)歷幾次案件后更加成熟，在成長(zhǎng)中不斷磨練，是個(gè)真的漢子，正應(yīng)驗(yàn)?zāi)蔷湓挘撼删涂空姹臼?lt;/note>
</contact>
<contact>
<name>
<first>季</first>
<last>潔</last>
</name>
<note>重案六組探員，富有人情味，對(duì)揚(yáng)震早已芳心默許，知道為什么嗎？因?yàn)樗焐蛺?ài)保護(hù)別人，當(dāng)她看到揚(yáng)震被別人用槍指著頭嚇的回不過(guò)神來(lái)時(shí)就對(duì)這個(gè)真實(shí)的男人產(chǎn)生了感覺(jué)，真可謂巾幗不讓須眉</note>
</contact>
</contactdetails>
導(dǎo)出聯(lián)系人時(shí)在“保存的路徑”文本框中輸入一個(gè)文件路徑，程序?qū)⒃谠撀窂较聞?chuàng)建一個(gè)xml文件，如果該文件存在于該路徑上，程序?qū)?duì)該xml文件進(jìn)行重寫。
為實(shí)現(xiàn)以上所述所有功能，我專門編寫了一個(gè)類來(lái)封裝實(shí)現(xiàn)代碼，該類代碼如下：
namespace contactapplication
{
using system;
using system.xml;
using system.text;
using system.data;
using system.windows.forms;
using system.componentmodel;
using system.collections;
/// <summary>
/// contact 聯(lián)系人
/// </summary>
public class contact : idisposable
{
private string xmlpath;
private xmldocument xmldoc;
private xmlnode selectnode;
private string firstname;
private string lastname;
private string note;
#region contact 構(gòu)造器
/// <summary>
/// 默認(rèn)構(gòu)造器
/// </summary>
public contact()
{
this.xmlpath = "../../contact.xml";
this.selectnode = null;
this.xmldoc = new xmldocument();
this.xmldoc.load(this.xmlpath);
this.firstname = string.empty;
this.lastname = string.empty;
this.note = string.empty;
}
/// <summary>
/// 使用姓氏，名字，個(gè)人信息構(gòu)造一個(gè)聯(lián)系人對(duì)象
/// </summary>
/// <param name="firstname">姓氏</param>
/// <param name="lastname">名字</param>
/// <param name="note">個(gè)人信息</param>
public contact(string firstname, string lastname, string note)
{
this.xmlpath = "../../contact.xml";
this.selectnode = null;
this.xmldoc = new xmldocument();
this.xmldoc.load(this.xmlpath);
this.firstname = firstname;
this.lastname = lastname;
this.note = note;
}
#endregion
#region contact 資源釋放方法
/// <summary>
/// 清理該對(duì)象所有正在使用的資源
/// </summary>
public void dispose()
{
this.dispose(true);
gc.suppressfinalize(this);
}
/// <summary>
/// 釋放該對(duì)象的實(shí)例變量
/// </summary>
/// <param name="disposing"></param>
protected virtual void dispose(bool disposing)
{
if (!disposing)
return;
if (this.xmlpath != null)
this.xmlpath = null;
if (this.xmldoc != null)
this.xmldoc = null;
if (this.selectnode != null)
this.selectnode = null;
if (this.firstname != null)
this.firstname = null;
if (this.lastname != null)
this.lastname = null;
if (this.note != null)
this.note = null;
}
#endregion
#region contact 屬性
/// <summary>
/// 姓氏
/// </summary>
public string firstname
{
get
{
return this.firstname;
}
set
{
this.firstname = value;
}
}
/// <summary>
/// 名字
/// </summary>
public string lastname
{
get
{
return this.lastname;
}
set
{
this.lastname = value;
}
}
/// <summary>
/// 個(gè)人信息
/// </summary>
public string note
{
get
{
return this.note;
}
set
{
this.note = value;
}
}
#endregion
#region contact 功能函數(shù)
/// <summary>
/// 加載所有的聯(lián)系人姓名
/// </summary>
/// <returns>聯(lián)系人姓名列表</returns>
public arraylist loadcontactname()
{
arraylist namelist= new arraylist();
xmlnodelist namenodelist = xmldoc.selectnodes("//name");
foreach(xmlnode namenode in namenodelist)
{
xmlelement firstnamenode = (xmlelement)namenode.firstchild;
xmltext firstnametext = (xmltext)firstnamenode.firstchild;
xmlelement lastnamenode = (xmlelement)namenode.lastchild;
xmltext lastnametext = (xmltext)lastnamenode.firstchild;
namelist.add(lastnametext.value + " " + firstnametext.value);
}
return namelist;
}
/// <summary>
/// 獲取note節(jié)點(diǎn)的文本值
/// </summary>
/// <returns>note節(jié)點(diǎn)的文本值</returns>
public string displaynote()
{
string note = string.empty;
xmlelement selectname = (xmlelement)xmldoc.selectsinglenode(string.format("//name[first='{0}' and last='{1}']",this.firstname,this.lastname));
note = selectname.nextsibling.innertext;
return note;
}
/// <summary>
/// 搜索聯(lián)系人
/// </summary>
/// <remarks>
/// 根據(jù)傳入的搜索類型（按姓或名）以及搜索值查詢符合條件的聯(lián)系人信息，并以對(duì)話框形式顯示
/// </remarks>
/// <param name="searchtype">搜索類型（first或last）</param>
/// <param name="searchvalue">搜索值</param>
public void searchcontact(string searchtype, string searchvalue)
{
string contactinfo = string.empty;
int i = 0;
xmlnodelist namenodelist = xmldoc.selectnodes(string.format("//name[{0}='{1}']",searchtype,searchvalue));
if(searchtype == "first")
{
messagebox.show(string.format("符合{0}姓氏的聯(lián)系人有{1}個(gè)",searchvalue,namenodelist.count),"搜索聯(lián)系人",messageboxbuttons.ok,messageboxicon.information);
if (namenodelist.count == 0)
return;
foreach(xmlnode namenode in namenodelist)
{
i++;
contactinfo = namenode.lastchild.innertext + " " + namenode.firstchild.innertext;
contactinfo = contactinfo + system.environment.newline + "====================" + system.environment.newline + namenode.nextsibling.innertext;
messagebox.show(string.format("第{0}個(gè)聯(lián)系人：{1}{2}{3}",i,system.environment.newline,system.environment.newline,contactinfo),"搜索聯(lián)系人",messageboxbuttons.ok,messageboxicon.information);
}
}
else if(searchtype == "last")
{
messagebox.show(string.format("符合{0}名字的聯(lián)系人有{1}個(gè)",searchvalue,namenodelist.count),"搜索聯(lián)系人",messageboxbuttons.ok,messageboxicon.information);
if (namenodelist.count == 0)
return;
foreach(xmlnode namenode in namenodelist)
{
i++;
contactinfo = namenode.lastchild.innertext + " " + namenode.firstchild.innertext;
contactinfo = contactinfo + system.environment.newline + "====================" + system.environment.newline + namenode.nextsibling.innertext;
messagebox.show(string.format("第{0}個(gè)聯(lián)系人：{1}{2}{3}",i,system.environment.newline,system.environment.newline,contactinfo),"搜索聯(lián)系人",messageboxbuttons.ok,messageboxicon.information);
}
}
else
{
messagebox.show("沒(méi)有發(fā)現(xiàn)與您的搜索條件匹配的項(xiàng)，請(qǐng)檢查您的操作是否正確！","搜索聯(lián)系人",messageboxbuttons.ok,messageboxicon.information);
}
}
/// <summary>
/// 添加聯(lián)系人
/// </summary>
public void addcontact()
{
xmldocumentfragment xmldocfrag = xmldoc.createdocumentfragment();
xmlelement contactele = xmldoc.createelement("contact");
xmlelement nameele = xmldoc.createelement("name");
xmlelement firstnameele = xmldoc.createelement("first");
firstnameele.innertext = this.firstname;
nameele.appendchild(firstnameele);
xmlelement lastnameele = xmldoc.createelement("last");
lastnameele.innertext = this.lastname;
nameele.appendchild(lastnameele);
xmlelement noteele = xmldoc.createelement("note");
noteele.innertext = this.note;
contactele.appendchild(nameele);
contactele.appendchild(noteele);
xmldocfrag.appendchild(contactele);
xmlelement detailsele = (xmlelement)xmldoc.selectsinglenode("/contactdetails");
detailsele.appendchild(xmldocfrag.firstchild);
xmldoc.save(this.xmlpath);
}
/// <summary>
/// 修改聯(lián)系人
/// </summary>
public void updatecontact()
{
selectnode.firstchild.innertext = this.firstname;
selectnode.lastchild.innertext = this.lastname;
selectnode.nextsibling.innertext = this.note;
xmldoc.save(this.xmlpath);
}
/// <summary>
/// 刪除聯(lián)系人
/// </summary>
public void deletecontact()
{
xmlelement contactele = (xmlelement)this.selectnode.parentnode;
xmlelement detailsele = (xmlelement)contactele.parentnode;
detailsele.removechild(contactele);
xmldoc.save(this.xmlpath);
}
/// <summary>
/// 根據(jù)列表框中選中的聯(lián)系人在文檔中選擇一個(gè)對(duì)應(yīng)的聯(lián)系人
/// </summary>
public void selectcontact()
{
this.selectnode = xmldoc.selectsinglenode(string.format("//name[first='{0}' and last='{1}']",this.firstname,this.lastname));
}
/// <summary>
/// 導(dǎo)出聯(lián)系人
/// </summary>
/// <param name="filepath">要導(dǎo)出的路徑</param>
/// <returns>是否成功導(dǎo)出</returns>
public string exportcontacts(string filepath)
{
string isok = "is not ok";
if (filepath != null)
{
xmltextwriter xmltxtwt = new xmltextwriter(filepath,encoding.utf8);
xmldoc.save(xmltxtwt);
xmltxtwt.close();
isok = "is ok";
}
return isok;
}
/// <summary>
/// 導(dǎo)入聯(lián)系人
/// </summary>
/// <param name="filepath">要導(dǎo)入的路徑</param>
public void importcontacts(string filepath)
{
string impfirstname = string.empty;
string implastname = string.empty;
xmlnode cnode;
xmldocument xmldoc2 = new xmldocument();
xmldoc2.load(filepath);
xmlnodelist contactnodelist = xmldoc2.selectnodes("//contact");
foreach(xmlnode contactnode in contactnodelist)
{
impfirstname = contactnode.firstchild.firstchild.childnodes[0].value;
implastname = contactnode.firstchild.lastchild.childnodes[0].value;
cnode = this.xmldoc.selectsinglenode(string.format("//name[first='{0}' and last='{1}']",impfirstname,implastname));
if (cnode == null)
{
xmlnode importnode = xmldoc.importnode(contactnode,true);
xmldoc.selectsinglenode("/contactdetails").appendchild(importnode);
}
}
xmldoc.save(this.xmlpath);
}
#endregion
}
}
程序主窗體代碼如下：
namespace contactapplication
{
using system;
using system.drawing;
using system.collections;
using system.componentmodel;
using system.windows.forms;
using system.data;
/// <summary>
/// form1 的摘要說(shuō)明。
/// </summary>
public class form1 : system.windows.forms.form
{
private system.windows.forms.label label1;
private system.windows.forms.textbox textbox1;
private system.windows.forms.radiobutton radiobutton1;
private system.windows.forms.radiobutton radiobutton2;
private system.windows.forms.button button1;
private system.windows.forms.label label2;
private system.windows.forms.listbox listbox1;
private system.windows.forms.textbox textbox2;
private system.windows.forms.groupbox groupbox1;
private system.windows.forms.button button2;
private system.windows.forms.button button3;
private system.windows.forms.label label3;
private system.windows.forms.textbox textbox3;
private system.windows.forms.button button4;
private system.windows.forms.button button5;
private system.windows.forms.button button6;
/// <summary>
/// 必需的設(shè)計(jì)器變量。
/// </summary>
private system.componentmodel.container components = null;
public form1()
{
//
// windows 窗體設(shè)計(jì)器支持所必需的
//
initializecomponent();
//
// todo: 在 initializecomponent 調(diào)用后添加任何構(gòu)造函數(shù)代碼
//
}
/// <summary>
/// 清理所有正在使用的資源。
/// </summary>
protected override void dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.dispose();
}
}
base.dispose( disposing );
}
#region windows 窗體設(shè)計(jì)器生成的代碼
/// <summary>
/// 設(shè)計(jì)器支持所需的方法 - 不要使用代碼編輯器修改
/// 此方法的內(nèi)容。
/// </summary>
private void initializecomponent()
{
this.label1 = new system.windows.forms.label();
this.textbox1 = new system.windows.forms.textbox();
this.radiobutton1 = new system.windows.forms.radiobutton();
this.radiobutton2 = new system.windows.forms.radiobutton();
this.button1 = new system.windows.forms.button();
this.label2 = new system.windows.forms.label();
this.listbox1 = new system.windows.forms.listbox();
this.textbox2 = new system.windows.forms.textbox();
this.groupbox1 = new system.windows.forms.groupbox();
this.textbox3 = new system.windows.forms.textbox();
this.label3 = new system.windows.forms.label();
this.button3 = new system.windows.forms.button();
this.button2 = new system.windows.forms.button();
this.button4 = new system.windows.forms.button();
this.button5 = new system.windows.forms.button();
this.button6 = new system.windows.forms.button();
this.groupbox1.suspendlayout();
this.suspendlayout();
//
// label1
//
this.label1.autosize = true;
this.label1.location = new system.drawing.point(8, 8);
this.label1.name = "label1";
this.label1.size = new system.drawing.size(79, 17);
this.label1.tabindex = 0;
this.label1.text = "搜索聯(lián)系人：";
//
// textbox1
//
this.textbox1.location = new system.drawing.point(8, 40);
this.textbox1.name = "textbox1";
this.textbox1.size = new system.drawing.size(104, 21);
this.textbox1.tabindex = 1;
this.textbox1.text = "";
//
// radiobutton1
//
this.radiobutton1.location = new system.drawing.point(8, 72);
this.radiobutton1.name = "radiobutton1";
this.radiobutton1.size = new system.drawing.size(80, 24);
this.radiobutton1.tabindex = 2;
this.radiobutton1.text = "按姓搜索";
//
// radiobutton2
//
this.radiobutton2.location = new system.drawing.point(8, 104);
this.radiobutton2.name = "radiobutton2";
this.radiobutton2.size = new system.drawing.size(80, 24);
this.radiobutton2.tabindex = 3;
this.radiobutton2.text = "按名搜索";
//
// button1
//
this.button1.location = new system.drawing.point(8, 136);
this.button1.name = "button1";
this.button1.size = new system.drawing.size(104, 23);
this.button1.tabindex = 4;
this.button1.text = "查找聯(lián)系人";
this.button1.click += new system.eventhandler(this.button1_click);
//
// label2
//
this.label2.anchor = ((system.windows.forms.anchorstyles)(((system.windows.forms.anchorstyles.top | system.windows.forms.anchorstyles.left)
| system.windows.forms.anchorstyles.right)));
this.label2.autosize = true;
this.label2.location = new system.drawing.point(152, 8);
this.label2.name = "label2";
this.label2.size = new system.drawing.size(79, 17);
this.label2.tabindex = 5;
this.label2.text = "聯(lián)系人列表：";
//
// listbox1
//
this.listbox1.anchor = ((system.windows.forms.anchorstyles)(((system.windows.forms.anchorstyles.top | system.windows.forms.anchorstyles.left)
| system.windows.forms.anchorstyles.right)));
this.listbox1.itemheight = 12;
this.listbox1.location = new system.drawing.point(152, 40);
this.listbox1.name = "listbox1";
this.listbox1.scrollalwaysvisible = true;
this.listbox1.size = new system.drawing.size(288, 64);
this.listbox1.tabindex = 6;
this.listbox1.selectedindexchanged += new system.eventhandler(this.listbox1_selectedindexchanged);
//
// textbox2
//
this.textbox2.anchor = ((system.windows.forms.anchorstyles)((((system.windows.forms.anchorstyles.top | system.windows.forms.anchorstyles.bottom)
| system.windows.forms.anchorstyles.left)
| system.windows.forms.anchorstyles.right)));
this.textbox2.location = new system.drawing.point(152, 112);
this.textbox2.multiline = true;
this.textbox2.name = "textbox2";
this.textbox2.scrollbars = system.windows.forms.scrollbars.both;
this.textbox2.size = new system.drawing.size(288, 128);
this.textbox2.tabindex = 7;
this.textbox2.text = "";
//
// groupbox1
//
this.groupbox1.anchor = ((system.windows.forms.anchorstyles)(((system.windows.forms.anchorstyles.bottom | system.windows.forms.anchorstyles.left)
| system.windows.forms.anchorstyles.right)));
this.groupbox1.controls.add(this.textbox3);
this.groupbox1.controls.add(this.label3);
this.groupbox1.controls.add(this.button3);
this.groupbox1.controls.add(this.button2);
this.groupbox1.location = new system.drawing.point(0, 248);
this.groupbox1.name = "groupbox1";
this.groupbox1.size = new system.drawing.size(440, 64);
this.groupbox1.tabindex = 8;
this.groupbox1.tabstop = false;
this.groupbox1.text = "導(dǎo)出/導(dǎo)入聯(lián)系人";
//
// textbox3
//
this.textbox3.anchor = ((system.windows.forms.anchorstyles)((system.windows.forms.anchorstyles.left | system.windows.forms.anchorstyles.right)));
this.textbox3.location = new system.drawing.point(192, 32);
this.textbox3.name = "textbox3";
this.textbox3.size = new system.drawing.size(240, 21);
this.textbox3.tabindex = 3;
this.textbox3.text = "";
//
// label3
//
this.label3.anchor = ((system.windows.forms.anchorstyles)((system.windows.forms.anchorstyles.left | system.windows.forms.anchorstyles.right)));
this.label3.location = new system.drawing.point(192, 16);
this.label3.name = "label3";
this.label3.size = new system.drawing.size(72, 16);
this.label3.tabindex = 2;
this.label3.text = "保存的路徑";
//
// button3
//
this.button3.anchor = system.windows.forms.anchorstyles.left;
this.button3.location = new system.drawing.point(104, 32);
this.button3.name = "button3";
this.button3.tabindex = 1;
this.button3.text = "導(dǎo)出";
this.button3.click += new system.eventhandler(this.button3_click);
//
// button2
//
this.button2.anchor = system.windows.forms.anchorstyles.left;
this.button2.location = new system.drawing.point(16, 32);
this.button2.name = "button2";
this.button2.tabindex = 0;
this.button2.text = "導(dǎo)入";
this.button2.click += new system.eventhandler(this.button2_click);
//
// button4
//
this.button4.anchor = ((system.windows.forms.anchorstyles)((system.windows.forms.anchorstyles.bottom | system.windows.forms.anchorstyles.right)));
this.button4.location = new system.drawing.point(128, 328);
this.button4.name = "button4";
this.button4.size = new system.drawing.size(96, 23);
this.button4.tabindex = 9;
this.button4.text = "添加聯(lián)系人";
this.button4.click += new system.eventhandler(this.button4_click);
//
// button5
//
this.button5.anchor = ((system.windows.forms.anchorstyles)((system.windows.forms.anchorstyles.bottom | system.windows.forms.anchorstyles.right)));
this.button5.dialogresult = system.windows.forms.dialogresult.cancel;
this.button5.location = new system.drawing.point(232, 328);
this.button5.name = "button5";
this.button5.size = new system.drawing.size(96, 23);
this.button5.tabindex = 10;
this.button5.text = "修改聯(lián)系人";
this.button5.click += new system.eventhandler(this.button5_click);
//
// button6
//
this.button6.anchor = ((system.windows.forms.anchorstyles)((system.windows.forms.anchorstyles.bottom | system.windows.forms.anchorstyles.right)));
this.button6.location = new system.drawing.point(336, 328);
this.button6.name = "button6";
this.button6.size = new system.drawing.size(96, 23);
this.button6.tabindex = 11;
this.button6.text = "刪除聯(lián)系人";
this.button6.click += new system.eventhandler(this.button6_click);
//
// form1
//
this.autoscalebasesize = new system.drawing.size(6, 14);
this.clientsize = new system.drawing.size(440, 373);
this.controls.add(this.button6);
this.controls.add(this.button5);
this.controls.add(this.button4);
this.controls.add(this.groupbox1);
this.controls.add(this.textbox2);
this.controls.add(this.listbox1);
this.controls.add(this.label2);
this.controls.add(this.button1);
this.controls.add(this.radiobutton2);
this.controls.add(this.radiobutton1);
this.controls.add(this.textbox1);
this.controls.add(this.label1);
this.name = "form1";
this.text = "聯(lián)系人應(yīng)用程序";
this.load += new system.eventhandler(this.form1_load);
this.groupbox1.resumelayout(false);
this.resumelayout(false);
}
#endregion
/// <summary>
/// 應(yīng)用程序的主入口點(diǎn)。
/// </summary>
[stathread]
static void main()
{
application.run(new form1());
}
private void form1_load(object sender, system.eventargs e)
{
contact contact = new contact();
this.bindtolistbox(contact);
}
private void bindtolistbox(contact contact)
{
this.listbox1.items.clear();
arraylist namelist;
try
{
namelist = contact.loadcontactname();
foreach(object obj in namelist)
{
this.listbox1.items.add(obj.tostring());
}
}
catch(exception exp)
{
messagebox.show(exp.tostring(),"error",messageboxbuttons.ok,messageboxicon.error);
}
finally
{
contact.dispose();
}
}
private void listbox1_selectedindexchanged(object sender, system.eventargs e)
{
contact contact = new contact();
string itemtext = this.listbox1.getitemtext(listbox1.selecteditem);
string firstname = itemtext.split(" ".tochararray())[1].trim().tostring();
string lastname = itemtext.split(" ".tochararray())[0].trim().tostring();
contact.firstname = firstname;
contact.lastname = lastname;
try
{
this.textbox2.text = contact.displaynote();
}
catch(exception exp)
{
messagebox.show(exp.tostring(),"error",messageboxbuttons.ok,messageboxicon.error);
}
finally
{
contact.dispose();
}
}
private void button1_click(object sender, system.eventargs e)
{
string searchtype = string.empty;
string searchvalue = string.empty;
contact contact = new contact();
if (this.radiobutton1.checked == true)
searchtype = "first";
if (this.radiobutton2.checked == true)
searchtype = "last";
if (this.textbox1.text != "")
searchvalue = this.textbox1.text;
try
{
contact.searchcontact(searchtype,searchvalue);
}
catch(exception exp)
{
messagebox.show(exp.tostring(),"error",messageboxbuttons.ok,messageboxicon.error);
}
finally
{
contact.dispose();
}
}
private void button4_click(object sender, system.eventargs e)
{
string firstname = string.empty;
string lastname = string.empty;
string note = string.empty;
form2 frm2 = new form2();
frm2.showdialog();
if (frm2.dialogresult == dialogresult.ok)
{
firstname = frm2.controls[0].text;
lastname = frm2.controls[1].text;
note = frm2.controls[2].text;
contact contact = new contact(firstname,lastname,note);
try
{
contact.addcontact();
this.bindtolistbox(contact);
}
catch(exception exp)
{
messagebox.show(exp.tostring(),"error",messageboxbuttons.ok,messageboxicon.error);
}
}
}
private void button5_click(object sender, system.eventargs e)
{
if (this.listbox1.selecteditem == null)
{
messagebox.show("要修改聯(lián)系人信息請(qǐng)先在聯(lián)系人列表中選中","修改聯(lián)系人",messageboxbuttons.ok,messageboxicon.asterisk);
return;
}
string firstname = string.empty;
string lastname = string.empty;
string note = string.empty;
string itemtext = string.empty;
itemtext = this.listbox1.getitemtext(listbox1.selecteditem);
firstname = itemtext.split(" ".tochararray())[1].trim().tostring();
lastname = itemtext.split(" ".tochararray())[0].trim().tostring();
contact contact = new contact();
contact.firstname = firstname;
contact.lastname = lastname;
try
{
note = contact.displaynote();
contact.selectcontact();
}
catch(exception exp)
{
messagebox.show(exp.tostring(),"error",messageboxbuttons.ok,messageboxicon.error);
}
form3 frm3 = new form3();
frm3.controls[0].text = firstname;
frm3.controls[1].text = lastname;
frm3.controls[2].text = note;
frm3.showdialog();
if (frm3.dialogresult == dialogresult.ok)
{
firstname = frm3.controls[0].text;
lastname = frm3.controls[1].text;
note = frm3.controls[2].text;
contact.firstname = firstname;
contact.lastname = lastname;
contact.note = note;
try
{
contact.updatecontact();
this.bindtolistbox(contact);
}
catch(exception exp)
{
messagebox.show(exp.tostring(),"error",messageboxbuttons.ok,messageboxicon.error);
}
}
}
private void button6_click(object sender, system.eventargs e)
{
if (this.listbox1.selecteditem == null)
{
messagebox.show("要?jiǎng)h除聯(lián)系人信息請(qǐng)先在聯(lián)系人列表中選中","刪除聯(lián)系人",messageboxbuttons.ok,messageboxicon.asterisk);
return;
}
string firstname = string.empty;
string lastname = string.empty;
string itemtext = string.empty;
itemtext = this.listbox1.getitemtext(listbox1.selecteditem);
firstname = itemtext.split(" ".tochararray())[1].trim().tostring();
lastname = itemtext.split(" ".tochararray())[0].trim().tostring();
if (messagebox.show("是否確定刪除聯(lián)系人，刪除后將不可恢復(fù)！","刪除聯(lián)系人",messageboxbuttons.okcancel,messageboxicon.question) == dialogresult.ok)
{
contact contact = new contact();
contact.firstname = firstname;
contact.lastname = lastname;
try
{
contact.selectcontact();
contact.deletecontact();
this.bindtolistbox(contact);
}
catch(exception exp)
{
messagebox.show(exp.tostring(),"error",messageboxbuttons.ok,messageboxicon.error);
}
}
}
private void button3_click(object sender, system.eventargs e)
{
string filepath = this.textbox3.text;
contact contact = new contact();
try
{
messagebox.show("export " + contact.exportcontacts(filepath),"導(dǎo)出聯(lián)系人",messageboxbuttons.ok,messageboxicon.asterisk);
}
catch(exception exp)
{
messagebox.show(exp.tostring(),"error",messageboxbuttons.ok,messageboxicon.error);
}
finally
{
contact.dispose();
}
}
private void button2_click(object sender, system.eventargs e)
{
if (this.textbox3.text == "")
return;
string filepath = this.textbox3.text;
contact contact = new contact();
try
{
contact.importcontacts(filepath);
this.bindtolistbox(contact);
}
catch(exception exp)
{
messagebox.show(exp.tostring(),"error",messageboxbuttons.ok,messageboxicon.error);
}
}
}
}
添加聯(lián)系人窗體代碼如下：
namespace contactapplication
{
using system;
using system.drawing;
using system.collections;
using system.componentmodel;
using system.windows.forms;
/// <summary>
/// form2 的摘要說(shuō)明。
/// </summary>
public class form2 : system.windows.forms.form
{
private system.windows.forms.button button1;
private system.windows.forms.button button2;
private system.windows.forms.textbox textbox1;
private system.windows.forms.textbox textbox2;
private system.windows.forms.textbox textbox3;
private system.windows.forms.label label1;
private system.windows.forms.label label2;
private system.windows.forms.label label3;
private system.windows.forms.label label4;
/// <summary>
/// 必需的設(shè)計(jì)器變量。
/// </summary>
private system.componentmodel.container components = null;
public form2()
{
//
// windows 窗體設(shè)計(jì)器支持所必需的
//
initializecomponent();
//
// todo: 在 initializecomponent 調(diào)用后添加任何構(gòu)造函數(shù)代碼
//
}
/// <summary>
/// 清理所有正在使用的資源。
/// </summary>
protected override void dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.dispose();
}
}
base.dispose( disposing );
}
#region windows 窗體設(shè)計(jì)器生成的代碼
/// <summary>
/// 設(shè)計(jì)器支持所需的方法 - 不要使用代碼編輯器修改
/// 此方法的內(nèi)容。
/// </summary>
private void initializecomponent()
{
this.button1 = new system.windows.forms.button();
this.button2 = new system.windows.forms.button();
this.textbox1 = new system.windows.forms.textbox();
this.textbox2 = new system.windows.forms.textbox();
this.textbox3 = new system.windows.forms.textbox();
this.label1 = new system.windows.forms.label();
this.label2 = new system.windows.forms.label();
this.label3 = new system.windows.forms.label();
this.label4 = new system.windows.forms.label();
this.suspendlayout();
//
// button1
//
this.button1.dialogresult = system.windows.forms.dialogresult.ok;
this.button1.location = new system.drawing.point(216, 152);
this.button1.name = "button1";
this.button1.tabindex = 0;
this.button1.text = "確定";
//
// button2
//
this.button2.dialogresult = system.windows.forms.dialogresult.cancel;
this.button2.location = new system.drawing.point(296, 152);
this.button2.name = "button2";
this.button2.tabindex = 1;
this.button2.text = "取消";
//
// textbox1
//
this.textbox1.location = new system.drawing.point(136, 16);
this.textbox1.name = "textbox1";
this.textbox1.size = new system.drawing.size(232, 21);
this.textbox1.tabindex = 2;
this.textbox1.text = "";
//
// textbox2
//
this.textbox2.location = new system.drawing.point(136, 56);
this.textbox2.name = "textbox2";
this.textbox2.size = new system.drawing.size(232, 21);
this.textbox2.tabindex = 3;
this.textbox2.text = "";
//
// textbox3
//
this.textbox3.location = new system.drawing.point(136, 96);
this.textbox3.name = "textbox3";
this.textbox3.size = new system.drawing.size(232, 21);
this.textbox3.tabindex = 4;
this.textbox3.text = "";
//
// label1
//
this.label1.location = new system.drawing.point(16, 16);
this.label1.name = "label1";
this.label1.tabindex = 5;
this.label1.text = "姓氏：";
this.label1.textalign = system.drawing.contentalignment.middlecenter;
//
// label2
//
this.label2.location = new system.drawing.point(16, 56);
this.label2.name = "label2";
this.label2.tabindex = 6;
this.label2.text = "名字：";
this.label2.textalign = system.drawing.contentalignment.middlecenter;
//
// label3
//
this.label3.location = new system.drawing.point(16, 96);
this.label3.name = "label3";
this.label3.tabindex = 7;
this.label3.text = "個(gè)人信息：";
this.label3.textalign = system.drawing.contentalignment.middlecenter;
//
// label4
//
this.label4.borderstyle = system.windows.forms.borderstyle.fixedsingle;
this.label4.location = new system.drawing.point(0, 136);
this.label4.name = "label4";
this.label4.size = new system.drawing.size(384, 1);
this.label4.tabindex = 8;
//
// form2
//
this.autoscalebasesize = new system.drawing.size(6, 14);
this.clientsize = new system.drawing.size(378, 183);
this.controls.add(this.label4);
this.controls.add(this.label3);
this.controls.add(this.label2);
this.controls.add(this.label1);
this.controls.add(this.textbox3);
this.controls.add(this.textbox2);
this.controls.add(this.textbox1);
this.controls.add(this.button2);
this.controls.add(this.button1);
this.formborderstyle = system.windows.forms.formborderstyle.fixeddialog;
this.maximizebox = false;
this.name = "form2";
this.startposition = system.windows.forms.formstartposition.centerscreen;
this.text = "添加聯(lián)系人";
this.load += new system.eventhandler(this.form2_load);
this.resumelayout(false);
this.controls.setchildindex(this.textbox1,0);
this.controls.setchildindex(this.textbox2,1);
this.controls.setchildindex(this.textbox3,2);
}
#endregion
private void form2_load(object sender, system.eventargs e)
{
}
}
}
修改聯(lián)系人窗體如下：
namespace contactapplication
{
using system;
using system.drawing;
using system.collections;
using system.componentmodel;
using system.windows.forms;
/// <summary>
/// form3 的摘要說(shuō)明。
/// </summary>
public class form3 : system.windows.forms.form
{
private system.windows.forms.label label1;
private system.windows.forms.label label2;
private system.windows.forms.label label3;
private system.windows.forms.label label4;
private system.windows.forms.textbox textbox1;
private system.windows.forms.textbox textbox2;
private system.windows.forms.textbox textbox3;
private system.windows.forms.button button1;
private system.windows.forms.button button2;
/// <summary>
/// 必需的設(shè)計(jì)器變量。
/// </summary>
private system.componentmodel.container components = null;
public form3()
{
//
// windows 窗體設(shè)計(jì)器支持所必需的
//
initializecomponent();
//
// todo: 在 initializecomponent 調(diào)用后添加任何構(gòu)造函數(shù)代碼
//
}
/// <summary>
/// 清理所有正在使用的資源。
/// </summary>
protected override void dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.dispose();
}
}
base.dispose( disposing );
}
#region windows 窗體設(shè)計(jì)器生成的代碼
/// <summary>
/// 設(shè)計(jì)器支持所需的方法 - 不要使用代碼編輯器修改
/// 此方法的內(nèi)容。
/// </summary>
private void initializecomponent()
{
this.label1 = new system.windows.forms.label();
this.label2 = new system.windows.forms.label();
this.label3 = new system.windows.forms.label();
this.label4 = new system.windows.forms.label();
this.textbox1 = new system.windows.forms.textbox();
this.textbox2 = new system.windows.forms.textbox();
this.textbox3 = new system.windows.forms.textbox();
this.button1 = new system.windows.forms.button();
this.button2 = new system.windows.forms.button();
this.suspendlayout();
//
// label1
//
this.label1.location = new system.drawing.point(16, 16);
this.label1.name = "label1";
this.label1.tabindex = 0;
this.label1.text = "姓氏：";
this.label1.textalign = system.drawing.contentalignment.middlecenter;
//
// label2
//
this.label2.location = new system.drawing.point(16, 56);
this.label2.name = "label2";
this.label2.tabindex = 1;
this.label2.text = "名字:";
this.label2.textalign = system.drawing.contentalignment.middlecenter;
//
// label3
//
this.label3.location = new system.drawing.point(16, 96);
this.label3.name = "label3";
this.label3.tabindex = 2;
this.label3.text = "個(gè)人信息：";
this.label3.textalign = system.drawing.contentalignment.middlecenter;
//
// label4
//
this.label4.borderstyle = system.windows.forms.borderstyle.fixedsingle;
this.label4.location = new system.drawing.point(0, 128);
this.label4.name = "label4";
this.label4.size = new system.drawing.size(384, 1);
this.label4.tabindex = 3;
//
// textbox1
//
this.textbox1.location = new system.drawing.point(136, 16);
this.textbox1.name = "textbox1";
this.textbox1.size = new system.drawing.size(232, 21);
this.textbox1.tabindex = 4;
this.textbox1.text = "";
//
// textbox2
//
this.textbox2.location = new system.drawing.point(136, 56);
this.textbox2.name = "textbox2";
this.textbox2.size = new system.drawing.size(232, 21);
this.textbox2.tabindex = 5;
this.textbox2.text = "";
//
// textbox3
//
this.textbox3.location = new system.drawing.point(136, 96);
this.textbox3.name = "textbox3";
this.textbox3.size = new system.drawing.size(232, 21);
this.textbox3.tabindex = 6;
this.textbox3.text = "";
//
// button1
//
this.button1.dialogresult = system.windows.forms.dialogresult.ok;
this.button1.location = new system.drawing.point(216, 144);
this.button1.name = "button1";
this.button1.tabindex = 7;
this.button1.text = "確定";
//
// button2
//
this.button2.dialogresult = system.windows.forms.dialogresult.cancel;
this.button2.location = new system.drawing.point(296, 144);
this.button2.name = "button2";
this.button2.tabindex = 8;
this.button2.text = "取消";
//
// form3
//
this.autoscalebasesize = new system.drawing.size(6, 14);
this.clientsize = new system.drawing.size(378, 175);
this.controls.add(this.button2);
this.controls.add(this.button1);
this.controls.add(this.textbox3);
this.controls.add(this.textbox2);
this.controls.add(this.textbox1);
this.controls.add(this.label4);
this.controls.add(this.label3);
this.controls.add(this.label2);
this.controls.add(this.label1);
this.formborderstyle = system.windows.forms.formborderstyle.fixeddialog;
this.name = "form3";
this.startposition = system.windows.forms.formstartposition.centerscreen;
this.text = "修改聯(lián)系人";
this.load += new system.eventhandler(this.form3_load);
this.resumelayout(false);
this.controls.setchildindex(this.textbox1,0);
this.controls.setchildindex(this.textbox2,1);
this.controls.setchildindex(this.textbox3,2);
}
#endregion
private void form3_load(object sender, system.eventargs e)
{
}
}
}
