<script language="javascript">
function get_Element(the_ele,the_tag){
the_tag = the_tag.toLowerCase();
if(the_ele.tagName.toLowerCase()==the_tag)
return the_ele;
while(the_ele=the_ele.offsetParent){
if(the_ele.tagName.toLowerCase()==the_tag)
return the_ele;
}
return(null);
}
function add_Row(the_table) {
var the_row,the_cell;
var cur_rows=the_table.rows.length;
the_row=cur_rows==null?-1:(cur_rows);
var i=the_row-1;
var newrow=the_table.insertRow(i);//得到插入位置
the_cell=newrow.insertCell(0);
the_cell.innerHTML="<center >收件人"+i;
the_cell=newrow.insertCell(1);
the_cell.innerHTML="<center ><input name=A"+i+" type=text size=13>";
the_cell=newrow.insertCell(2);
the_cell.innerHTML="<center ><INPUT type=button value=删除 onclick=del_row(myTable)>";
alert(the_table.rows.length);
}
function del_row(the_table){
var the_cell;
the_cell=get_Element(event.srcElement,"td");
var index=the_cell.parentElement.rowIndex;
if(the_cell==null) return;
if(the_table.rows.length==1) return;
the_table.deleteRow(index);
var cell1='';
var cell2='';
for(var i=1;i<document.getElementById('myTable').rows.length-2;i++)
{
try
{
cell1=document.getElementById('myTable').rows[i].cells[0];
cell2=document.getElementById('myTable').rows[i+1].cells[0];
cell22=document.getElementById('myTable').rows[i+1].cells[1];
if(parseInt(cell2.innerText)!=(parseInt(cell1.innerText)+1))
{
s=cell1.innerText.replace("收件人","");
cell2.innerText="收件人"+(parseInt(s-0)+1);
cell2.style.textAlign='center';
cell22.innerHTML="<center ><input name=A"+(i+1)+" type=text size=13>";
alert(cell22.innerHTML);
}
}
catch(e)
{
alert(e.discription);
}
}
}
</script>
<body>
<form method="post" name="form1" action="jsp.jsp" onSubmit="">
<table id="myTable" width="100%" border="1" cellpadding="4" cellspacing="1" >
<tr class="TdContent">
<td ><div align="center">序号</div></td>
<td ><div align="center">A</div></td>
<td ><div align="center">B</div></td>
</tr>
<tr class="TdContent">
<td><div align="center">1</div></td>
<td><div align="center">
<input name="A" type="text" size="13" >
</div></td>
<td><div align="center">
<input name="B" type="text" size="13" >
</div></td>
</tr>
<tr class="TdContent">
<td colspan="3" align="center"><input type="button" value="添加一行" class="ButtonStyle" onClick="add_Row(myTable)"></td>
</tr>
</table>
<input type="submit" name="Submit" value="发送">
</form>
</body>
function get_Element(the_ele,the_tag){
the_tag = the_tag.toLowerCase();
if(the_ele.tagName.toLowerCase()==the_tag)
return the_ele;
while(the_ele=the_ele.offsetParent){
if(the_ele.tagName.toLowerCase()==the_tag)
return the_ele;
}
return(null);
}
function add_Row(the_table) {
var the_row,the_cell;
var cur_rows=the_table.rows.length;
the_row=cur_rows==null?-1:(cur_rows);
var i=the_row-1;
var newrow=the_table.insertRow(i);//得到插入位置
the_cell=newrow.insertCell(0);
the_cell.innerHTML="<center >收件人"+i;
the_cell=newrow.insertCell(1);
the_cell.innerHTML="<center ><input name=A"+i+" type=text size=13>";
the_cell=newrow.insertCell(2);
the_cell.innerHTML="<center ><INPUT type=button value=删除 onclick=del_row(myTable)>";
alert(the_table.rows.length);
}
function del_row(the_table){
var the_cell;
the_cell=get_Element(event.srcElement,"td");
var index=the_cell.parentElement.rowIndex;
if(the_cell==null) return;
if(the_table.rows.length==1) return;
the_table.deleteRow(index);
var cell1='';
var cell2='';
for(var i=1;i<document.getElementById('myTable').rows.length-2;i++)
{
try
{
cell1=document.getElementById('myTable').rows[i].cells[0];
cell2=document.getElementById('myTable').rows[i+1].cells[0];
cell22=document.getElementById('myTable').rows[i+1].cells[1];
if(parseInt(cell2.innerText)!=(parseInt(cell1.innerText)+1))
{
s=cell1.innerText.replace("收件人","");
cell2.innerText="收件人"+(parseInt(s-0)+1);
cell2.style.textAlign='center';
cell22.innerHTML="<center ><input name=A"+(i+1)+" type=text size=13>";
alert(cell22.innerHTML);
}
}
catch(e)
{
alert(e.discription);
}
}
}
</script>
<body>
<form method="post" name="form1" action="jsp.jsp" onSubmit="">
<table id="myTable" width="100%" border="1" cellpadding="4" cellspacing="1" >
<tr class="TdContent">
<td ><div align="center">序号</div></td>
<td ><div align="center">A</div></td>
<td ><div align="center">B</div></td>
</tr>
<tr class="TdContent">
<td><div align="center">1</div></td>
<td><div align="center">
<input name="A" type="text" size="13" >
</div></td>
<td><div align="center">
<input name="B" type="text" size="13" >
</div></td>
</tr>
<tr class="TdContent">
<td colspan="3" align="center"><input type="button" value="添加一行" class="ButtonStyle" onClick="add_Row(myTable)"></td>
</tr>
</table>
<input type="submit" name="Submit" value="发送">
</form>
</body>
var i=the_row-1;后面加了 document.getElementById("name").value=eval(i);
表格里加了隐藏域<input type="hidden" name="name" id="name">
现在比如说我在这个页面里加了20个文本框,但是我又删除了17个,本来现在只是剩3个了,在获值的页面里我获取过来的应该是3才符合我的需要,可是现在传过去的是20,这个怎么办啊。
我在另一个页面里用循环要取出文本框里的值,可是明明只有3个值,我的循环却要走20次...
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
at java.lang.Integer.parseInt(Integer.java:468)
at java.lang.Integer.parseInt(Integer.java:497)
........
但是添加行后就没这个问题了
怎么做啊?????