实现了：插入 ，删除，修改，读取，验证类型唯一性(每种类型只能输入一个记录)
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js table 操作-----实现table的插入、修改、删除
上边是一个表，下边是一些录入控件text ,select
实现了：插入 ，删除，修改，读取，验证类型唯一性(每种类型只能输入一个记录)
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD>
<script>
var flg=false;
var selectedColor = "#99CCCC";
var initColor = "#ffff99";
var selectedRowIndex = "";
var editObj;
function add(){
var cell;
var textNode;
// add head
var type = document.getElementsByName("type")[0];
head = type.options[type.selectedIndex].text;
//check exist
var hiddenHeads = document.getElementsByName("hiddenHead");
for(i=0;i<hiddenHeads.length;i++){
if(hiddenHeads[i].value == type.value){
alert("这个类型的记录已经存在");
return ;
}
}
//add row
tbl = document.getElementById("paramTbl");
rowsLen = tbl.rows.length;
row = tbl.insertRow(rowsLen);
//create head tag
textNode = document.createTextNode(head);
cell = row.insertCell(0)
cell.setAttribute("hight","22");
cell.appendChild(textNode);
row.appendChild(cell);
//add param tag
for(i=1;i<4;i++){
paramValue = document.getElementsByName("param"+i)[0].value;
textNode = document.createTextNode(paramValue);
cell = row.insertCell(i)
cell.setAttribute("hight","22");
cell.appendChild(textNode);
row.appendChild(cell);
}
//add head value
hiddenHead = document.createElement("<input type='hidden' name='hiddenHead' value='"+type.value+"'/>");
cell = row.insertCell(4)
cell.setAttribute("hight","22");
cell.appendChild(hiddenHead);
row.appendChild(cell);
//add param value
for(i=5;i<8;i++){
paramValue = document.getElementsByName("param"+(i-4))[0].value;
hidden = document.createElement("<input type='hidden' name='hiddenParam"+(i-4)+"' value='"+paramValue+"'/>");
cell = row.insertCell(i)
cell.style.display='none';
cell.appendChild(hidden);
row.appendChild(cell);
}
row.onclick=function(){rowClick(this);};
row.bgColor = initColor;
init();
}
function edit(){
tbl = document.getElementById("paramTbl");
if(selectedRowIndex==""){
alert("please select a row");
return ;
}
for(i=1;i<4;i++){
paramObj = document.getElementsByName("param"+i)[0];
hiddenObj = document.getElementsByName("hiddenParam"+i)[selectedRowIndex-1];
hiddenObj.value = paramObj.value;
editObj.cells[i].innerText=paramObj.value;
}
init();
}
function del(){
tbl = document.getElementById("paramTbl");
tbl.deleteRow(selectedRowIndex);
selectedRowIndex = "";
init();
}
function rowClick(obj){
tbl = document.getElementById("paramTbl");
if(selectedRowIndex != ""){
tbl.rows[selectedRowIndex].bgColor = initColor;
}
selectedRowIndex = obj.rowIndex;
obj.bgColor = selectedColor;
//reset select
var type = document.getElementsByName("type")[0];
var hiddenHead = document.getElementsByName("hiddenHead")[selectedRowIndex-1];
var opts = type.options;
if(flg){
alert(selectedRowIndex-1);
alert(hiddenHead);
alert(hiddenHead.value);
}
for(i=0;i<opts.length;i++){
if(opts[i].value == hiddenHead.value ){
opts[i].selected = true;
}
}
//copy param value
for(i=1;i<4;i++){
paramObj = document.getElementsByName("param"+i)[0];
hiddenObj = document.getElementsByName("hiddenParam"+i)[selectedRowIndex-1];
paramObj.value = hiddenObj.value;
//alert(hiddenObj.value);
}
editObj=obj;
}
function init(){
for(i=1;i<4;i++){
param = document.getElementsByName("param"+i)[0];
param.value="";
}
var type = document.getElementsByName("type")[0];
type.options[0].selected=true;
}
function test(){
hiddenObjs = document.getElementsByName("hiddenParam1")
for(i=0;i<hiddenObjs.length;i++){
alert(hiddenObjs[i].value);
}
var hiddenHeads = document.getElementsByName("hiddenHead");
for(i=0;i<hiddenHeads.length;i++){
alert(hiddenHeads[i].value);
}
}
function test2(){
if(flg){
flg=false;
}else{
flg=true;
}
}
function reset(){
tbl = document.getElementById("paramTbl");
if(selectedRowIndex!=""){
tbl.rows[selectedRowIndex].bgColor = initColor;
selectedRowIndex="";
}
for(i=1;i<4;i++){
param = document.getElementsByName("param"+i)[0];
param.value="";
}
}
</script>
<BODY>
<div style="height:132px; width:100%; overflow-x:auto; overflow-y:auto; background-color:#ffff99;" >
<table id="paramTbl" width="100%">
<tr>
<td>类型</td>
<td>参数1</td>
<td>参数二</td>
<td>参数三</td>
</tr>
</table>
</div>
<table>
<tr>
<td>
<select name="type" onchange="reset()">
<option value="typeA">类型A</option>
<option value="typeB">类型B</option>
</select>
</td>
<td>
<input type="text" name="param1"/>
</td>
<td>
<input type="text" name="param2"/>
</td>
<td>
<input type="text" name="param3"/>
</td>
</tr>
<tr>
<td><input type="button" onclick="add()" value="add"/></td>
<td><input type="button" onclick="edit()" value="edit"/></td>
<td><input type="button" onclick="del()" value="del"/></td>
<td><!--<input type="button" onclick="test()" value="test"/>--></td>
</tr>
</table>
<!--
<td><input type="button" onclick="test2()" value="test2"/></td>
<td><input type="button" onclick="alert(selectedRowIndex)" value="test2"/></td>
-->
</BODY>
</HTML>
实现了：插入 ，删除，修改，读取，验证类型唯一性(每种类型只能输入一个记录)