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javascript动态添加删除tabs标签的方法
网络编程 2024/11/20 佚名
3 2

本文实例讲述了javascript动态添加删除tabs标签的方法。分享给大家供大家参考。具体实现方法如下：

<html>
<HEAD>
<TITLE>网页对话</TITLE>
<LINK href="style.css" type=text/css rel=stylesheet>
<script>
function $(obj)
{
 var o = typeof(obj)=="object" "ChatBoard__"+ChannelId;
 var LabelId="Label__"+ChannelId;
 /* 如果频道已存在 **/if($(ChatBoardId)){
 return ;bai
 };
 /* 添加控件,先删除原来 '等待客户连接' 这列 **/
 var cell0=$("LabelContainer").childNodes[0];
 if(cell0.id=='Label_Default')$("LabelContainer").removeChild(cell0);
 $("ChatBoardContainer").appendChild(buildChatBoard(ChatBoardId));
 $("LabelContainer").appendChild(buildLabel(LabelId,LabelText));
 /* 显示新打开的聊天窗口 **/toggChatBoard(ChannelId);
};
function buildChatBoard(boardId){
 var div=document.createElement("DIV");
 div.id=boardId;
 div.style.width="100%";
 div.style.height='258px';
 /* div.style.border = '1px solid #ff0000'; **/
 div.style.overflowY="scroll";
 div.style.padding="3";
 return div;
};
function buildLabel(LabelId,LabelText){
 var label=document.createElement("TD");
 label.id=LabelId;
 label.noWrap=true;
 /* label.width = LabelText.length * 12 + 30; /* +20是为了岂有此留位置给关闭按钮 **/
 label.height=22;
 label.name=LabelText;
 label.title="点击这里切换交谈对象";
 label.innerHTML=LabelText;
 var lid=LabelId.substr(LabelId.indexOf("__")+2);
 label.innerHTML+=" <SPAN title='关闭' style='FONT-WEIGHT: bold; FONT-SIZE: 12px;FONT-FAMILY: marlett; CURSOR: hand; COLOR: #555555; MARGIN-RIGHT: 4px' onclick=/"removeChatBoard('"+lid+"')/" onmouseout='this.style.color=/"#ffffff/"' onmouseover='this.style.color=/"#ffff00/"'>r</SPAN>";
 label.style.cursor="hand";
 /* label.style.border = "1px solid #CC99FF"; **/
 label.style.textAlign="center";
 label.style.padding="2";
 label.style.backgroundImage="url(Images/title2.gif)";
 label.onclick=function (){
 var id=event.srcElement.id;
 id=id.split("__")[1];
 if(event.srcElement.tagName=='SPAN')return ;
 toggChatBoard(id);
 };
 label.onmouseover=function (){
 event.srcElement.oldbg=event.srcElement.style.backgroundImage;
 event.srcElement.style.backgroundImage="url(Images/title2_on_green.jpg)";
 };
 label.onmouseout=function (){
 event.srcElement.style.backgroundImage=event.srcElement.oldbg;
 };
 return label;
};
function toggChatBoard(id){
 var boards=$("ChatBoardContainer");
 for(i=0;i<boards.childNodes.length;i++){
 if(boards.childNodes[i].id.indexOf(id)>-1){
  boards.childNodes[i].style.display='';
  boards.childNodes[i].innerHTML=id;
 }else {
  boards.childNodes[i].style.display='none';
 };
 };
 /* 标签栏 **/var labels=$("LabelContainer");
 for(i=0;i<labels.childNodes.length;i++){
 if(labels.childNodes[i].id.indexOf(id)>-1){
  labels.childNodes[i].oldbg=labels.childNodes[i].style.backgroundImage;
  labels.childNodes[i].style.backgroundImage="url(Images/title2_on_green.jpg)"; 
  var id=labels.childNodes[i].id;
  id=id.substr(id.indexOf("__")+2);
  var name=labels.childNodes[i].name; 
 }else {
  labels.childNodes[i].style.backgroundImage="url(Images/title2.gif)";
 };
 };
};
function removeChatBoard(id){
 var arChannel=$("ChatBoardContainer").childNodes;
 for(i=0;i<arChannel.length;i++){
 /* alert(arChannel[i].id + "," + id); */if(arChannel[i].id.indexOf(id)>-1){
  $("ChatBoardContainer").removeChild(arChannel[i]);
 };
 };
 /* 标签栏 **/var arLabel=$("LabelContainer").childNodes;
 for(i=0;i<arLabel.length;i++){
 /* alert(arLabel[i].id + "," + id); */if(arLabel[i].id.indexOf(id)>-1){
  $("LabelContainer").removeChild(arLabel[i]);
 };
 };
 if($("ChatBoardContainer").childNodes.length<1){
 var td=document.createElement("TD");
 td.innerText="等待客户连接..";
 td.align="center";
 td.id='Label_Default';
 $("LabelContainer").appendChild(td);
 return ;
 };
 var newid=arChannel[0].id;
 newid=newid.split("__")[1];
 toggChatBoard(newid);
};
function scrollLable(action){
 if(action==-1){
 clearInterval(scrollLableTimer);
 return ;
 };
 scrollLableTimer=setInterval("doScrollLable("+action+")",30);
};
function doScrollLable(action){
 var divLabelContainer=$('divLabelContainer');
 if(action==1){
 if(divLabelContainer.scrollLeft<0){
  clearInterval(scrollLableTimer);
  divLabelContainer.scrollLeft=0;
  return ;
 };
 divLabelContainer.scrollLeft-=10;
 };
 if(action==2){
 if(divLabelContainer.scrollLeft>$('tbLabelContainer').clientWidth){
  clearInterval(scrollLableTimer);
  divLabelContainer.scrollLeft=$('tbLabelContainer').clientWidth;
  return ;
 };
 divLabelContainer.scrollLeft+=10;
 };
};
</script>
<STYLE type=text/css>
 .imgbtn{ border:1px solid #ffffff;cursor:hand;}
 .imgbtn_on{ border:1px solid #9326FF;}
 a.toolButton{
 color:#375FB9!important;
 padding:0px;
 border:1px solid #B1D6F3;
 text-align:center;
 height:16px;
 width:16px;
 }
 a.toolButton:hover{
 background:#BADBEF;
 border:1px solid #144985;
 }
</STYLE>
</HEAD>
<body>
<a href="javascript:void(0)" onClick="addChannel('ceshi','ceshi')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test1','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test2','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test3','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test4','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test5','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test6','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test7','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test8','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test9','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test10','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test11','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test12','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test13','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test14','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test15','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test16','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test17','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test18','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test19','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test20','test')">add tabs</a>
<a href="javascript:void(0)" onClick="addChannel('test21','test')">add tabs</a>
<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>
<TBODY>
<TR>
<TD id=ChatBoardTitle style="COLOR: #555555" background=Images/title2.gif height=27>
<TABLE style="TABLE-LAYOUT: fixed" cellSpacing=0 cellPadding=0 width="100%" border=0>
<TBODY>
<TR>
<TD>
<DIV id=divLabelContainer style="OVERFLOW-X: hidden; WIDTH: 100%">
<TABLE id=tbLabelContainer height=27 cellSpacing=1 cellPadding=3 border=0>
<TBODY>
<TR id=LabelContainer>
<TD id=Label_Default noWrap align=middle>等待客户连接...</TD></TR></TBODY></TABLE></DIV></TD>
<TD width=30><SPAN onmouseup=scrollLable(-1) onmousedown=scrollLable(1) onMouseOver="this.style.color='red'" style="CURSOR: hand; FONT-FAMILY: webdings" onMouseOut="this.style.color=''">7</SPAN><SPAN onmouseup=scrollLable(-1) onmousedown=scrollLable(2) onMouseOver="this.style.color='red'" style="CURSOR: hand; FONT-FAMILY: webdings" onMouseOut="this.style.color=''">8</SPAN></TD></TR></TBODY></TABLE></TD></TR>
<TR><!-- ChatBoardContainer 内不能放任何内容，否则脚本会出错 --><!--<div id="ChatBoard" style="padding:3px; overflow-y: scroll; width: 100%; height: 258px"></div>-->
<TD id=ChatBoardContainer style="HEIGHT: 258px" vAlign=top></TD></TR></TBODY></TABLE>
</body>
</html>

用到的图片title2_on_green.jpg

<img alt="" src="/UploadFiles/2021-04-02/title2_on_green.jpg">

title2.gif<img alt="" src="http://p.blog.csdn.net/images/p_blog_csdn_net/jiedushi/title2.gif">

希望本文所述对大家的javascript程序设计有所帮助。

标签：
javascript,动态,添加,删除,tabs标签
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