JS implements the function of adding modifying and deleting dynamic tables recommended by of

1. First configure a table frame on the page

<tr> 
<td> New parameters :</td> 
<td class="pn-fcontent"><input type="button" value=" Choice " onclick="openAppParamsPage();"/></td> 
<td> parameter list :</td> 
<td class="pn-fcontent"><input type="hidden" id="paramslist" name="paramslist" style="width:190%" height="500"/></td> 
</tr> 
<tr> 
<table id="tab" width="100%" cellspacing="1" cellpadding="0" border="0" style="" class="pn-ltable"> 
<tr> 
<td height="20" valign="top" align="center"> 
 Parameter Name : 
</td> 
<td height="20" valign="top" align="center"> 
 Parameter Encoding : 
</td> 
<td height="20" valign="top" align="center"> 
 parameter values : 
</td> 
<td id="pos_1" height="20"> 
 operation  
</td> 
</tr> 
<tbody id="sortList"></tbody> 
</table> 
</tr> 
<tr> 
<td align="center" colspan="4"> 
<input type="submit" class="btn" value=" Preservation " onclick="setParamslist();"/> 
<input type="button" class="btn" value=" Return "/> 
</td> 
</tr> 

2. Related JS functions

function setParamslist() { 
var tab = document.getElementById("tab"); 
// Number of table rows  
var rows = tab.rows.length ; 
// Number of table columns  
var cells = tab.rows.item(0).cells.length ; 
//alert(" Number of rows "+rows+" Number of columns "+cells); 
var rowData = ""; 
for(var i=1;i<rows;i++) { 
var cellsData = new Array(); 
for(var j=0;j<cells-1;j++) { 
cellsData.push(tab.rows[i].cells[j].innerText); 
} 
rowData = rowData + "|" + cellsData; 
} 
document.getElementById("paramslist").value = rowData; 
} 
// Open related new application parameter interface  
function openAppParamsPage() { 
var param = new Object(); 
// This parameter 1 Definitely pass.  
param.win = window; 
param.id = 100; 
param.name = "test"; 
param.birthday = new Date(); 
var result = window.showModalDialog("addParamsItem","dialogWidth:500px;dialogHeight:600px;dialogLeft:200px;dialogTop=200px"); 
//var temp = document.getElementById("paramslist").value; 
//document.getElementById("paramslist").value = temp + result; 
addSort(result); 
} 
//  Add Apply Parameter Function  
function addSort(data) { 
var name = data; 
if(name == ""||name==undefined ) { 
return; 
} 
console.log(data); 
var params = data.split(","); 
var paramName = params[0]; 
var paramCode = params[1]; 
var paramValue = params[2]; 
var row = document.createElement("tr"); 
row.setAttribute("id", paramCode); 
var cell = document.createElement("td"); 
cell.appendChild(document.createTextNode(paramName)); 
row.appendChild(cell); 
cell = document.createElement("td"); 
cell.appendChild(document.createTextNode(paramCode)); 
row.appendChild(cell); 
cell = document.createElement("td"); 
cell.appendChild(document.createTextNode(paramValue)); 
row.appendChild(cell); 
var deleteButton = document.createElement("input"); 
deleteButton.setAttribute("type", "button"); 
deleteButton.setAttribute("value", " delete "); 
deleteButton.onclick = function () { deleteSort(paramCode); }; 
cell = document.createElement("td"); 
cell.appendChild(deleteButton); 
row.appendChild(cell); 
document.getElementById("sortList").appendChild(row); 
} 
//  Delete Apply Parameter Function  
function deleteSort(id) { 
if (id!=null){ 
var rowToDelete = document.getElementById(id); 
var sortList = document.getElementById("sortList"); 
sortList.removeChild(rowToDelete); 
} 
} 

Modification function for additional tables

// Pop-up update interface related information  
function updateSort(id) { 
if (id!=null){ 
var row = document.getElementById(id); 
//alert("row is " + row.cells[0].innerHTML); 
var id = row.cells[0].innerHTML; 
var paramName = row.cells[1].innerHTML; 
var paramCode = row.cells[2].innerHTML; 
var paramValue = row.cells[3].innerHTML; 
var param = new Object(); 
// This parameter 1 Definitely pass.  
param.win = window; 
param.id = 100; 
param.name = "test"; 
param.birthday = new Date(); 
var result = window.showModalDialog(baseUrl + "app/updateParamsItem?id=" + id + "¶mName=" + paramName + "¶mCode=" + paramCode + "¶mValue=" + paramValue, 
"dialogWidth:500px;dialogHeight:600px;dialogLeft:200px;dialogTop=200px"); 
var arr = result.split(","); 
row.cells[0].innerHTML = arr[0]; 
row.cells[1].innerHTML = arr[1]; 
row.cells[2].innerHTML = arr[2]; 
row.cells[3].innerHTML = arr[3]; 
} 
} 

3. Pop-up page, add or modify parameters, and write back related data.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
<title> New Applications </title> 
<#include "/views/head.html"/> 
</head> 
<body> 
<div class="body-box"> 
<div class="clear"></div> 
<form > 
<table width="100%" cellspacing="1" cellpadding="2" border="0" class="pn-ftable"> 
<tr> 
<td> Parameter Name :</td> 
<td class="pn-fcontent"><input type="text" maxlength="20" class="" required="true" id="paramName" name="paramName"/></td> 
</tr> 
<tr> 
<td> Parameter Encoding :</td> 
<td class="pn-fcontent"><input type="text" maxlength="20" class="" required="true" id="paramCode" name="paramCode" required="true" /></td> 
</tr> 
<tr> 
<td> parameter values :</td> 
<td class="pn-fcontent"><input type="text" maxlength="20" class="" required="true" id="paramValue" name="paramValue" required="true" /></td> 
</tr> 
<tr> 
<td align="center" colspan="4"> 
<input type="submit" value=" Preservation " onclick="returnResult();"/> 
<input type="button" value=" Return " onclick="closeWindow();"/> 
</td> 
</tr> 
</table> 
</form> 
</div> 
</body> 
</html> 
<script type="text/javascript"> 
// Close the window directly  
function closeWindow() { 
window.close(); 
} 
// Get the value and return after assembly  
function returnResult() { 
if(!$('form').valid()) 
return; 
var paramName = document.getElementById("paramName"); 
var paramCode = document.getElementById("paramCode"); 
var paramValue = document.getElementById("paramValue"); 
//alert("value is " + paramName.value + "," + paramCode.value + "," + paramValue.value); 
var result = paramName.value + "," + paramCode.value + "," + paramValue.value; 
window.returnValue = result; 
window.close(); 
} 
</script>