WEB开发网
开发学院网页设计JavaScript Javascript 动态添加&删除列表框内容 阅读

Javascript 动态添加&删除列表框内容

 2010-09-14 13:34:54 来源:WEB开发网   
核心提示: JS代码部份<script language="javascript">// Example: obj = findObj("image1");function findObj(theObj, theDoc){var p, i, foun

JS代码部份

<script language="javascript">// Example: obj = findObj("image1");
function findObj(theObj, theDoc){  var p, i, foundObj;   if(!theDoc) theDoc = document;  if( (p = theObj.indexOf("?")) > 0 && parent.frames.length)  {   theDoc = parent.frames[theObj.substring(p+1)].document;   theObj = theObj.substring(0,p);  }  if(!(foundObj = theDoc[theObj]) && theDoc.all) foundObj = theDoc.all[theObj];  for (i=0; !foundObj && i < theDoc.forms.length; i++)    foundObj = theDoc.forms[i][theObj];  for(i=0; !foundObj && theDoc.layers && i < theDoc.layers.length; i++)    foundObj = findObj(theObj,theDoc.layers[i].document);  if(!foundObj && document.getElementById) foundObj = document.getElementById(theObj);   return foundObj;}
//添加一个参与人填写行
function AddSignRow(){//读取最后一行的行号,存放在txtTRLastIndex文本框中
var txtTRLastIndex = findObj("txtTRLastIndex",document);
var rowID = parseInt(txtTRLastIndex.value);
var signFrame = findObj("SignFrame",document);
//添加行
var newTR = signFrame.insertRow(signFrame.rows.length);
newTR.id = "SignItem" + rowID;
//添加列:序号
var newNameTD=newTR.insertCell(0);
//添加列内容
newNameTD.innerHTML = newTR.rowIndex.toString();
//添加列:姓名
var newNameTD=newTR.insertCell(1);
//添加列内容
newNameTD.innerHTML = "<input name='txtName" + rowID + "' id='txtName" + rowID + "' type='text' size='12' />";
//添加列:电子邮箱
var newEmailTD=newTR.insertCell(2);
//添加列内容
newEmailTD.innerHTML = "<input name='txtEMail" + rowID + "' id='txtEmail" + rowID + "' type='text' size='20' />";
//添加列:电话
var newTelTD=newTR.insertCell(3);
//添加列内容
newTelTD.innerHTML = "<input name='txtTel" + rowID + "' id='txtTel" + rowID + "' type='text' size='10' />";
//添加列:手机
var newMobileTD=newTR.insertCell(4);
//添加列内容
newMobileTD.innerHTML = "<input name='txtMobile" + rowID + "' id='txtMobile" + rowID + "' type='text' size='12' />";
//添加列:公司名
var newCompanyTD=newTR.insertCell(5);
//添加列内容
newCompanyTD.innerHTML = "<input name='txtCompany" + rowID + "' id='txtCompany" + rowID + "' type='text' size='20' />";
//添加列:删除按钮
var newDeleteTD=newTR.insertCell(6);
//添加列内容
newDeleteTD.innerHTML = "<div align='center' style='width:40px'><a href='javascript:;' onclick="DeleteSignRow('SignItem" + rowID + "')">删除</a></div>";
//将行号推进下一行
txtTRLastIndex.value = (rowID + 1).toString() ;
}
//删除指定行
function DeleteSignRow(rowid){
var signFrame = findObj("SignFrame",document);
var signItem = findObj(rowid,document);
//获取将要删除的行的Index
var rowIndex = signItem.rowIndex;
//删除指定Index的行
signFrame.deleteRow(rowIndex);
//重新排列序号,如果没有序号,这一步省略
for(i=rowIndex;i<signFrame.rows.length;i++){
  signFrame.rows[i].cells[0].innerHTML = i.toString();
}
}//清空列表
function ClearAllSign(){
if(confirm('确定要清空所有参与人吗?')){
  var signFrame = findObj("SignFrame",document);
  var rowscount = signFrame.rows.length;
  //循环删除行,从最后一行往前删除
  for(i=rowscount - 1;i > 0; i--){
   signFrame.deleteRow(i);
  }
  //重置最后行号为1
  var txtTRLastIndex = findObj("txtTRLastIndex",document);
  txtTRLastIndex.value = "1";
  //预添加一行
  AddSignRow();
}
}
</script>

上一页  1 2 3 4 5  下一页

Tags:Javascript 动态 添加

编辑录入:爽爽 [复制链接] [打 印]
赞助商链接