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JavaScript implementation of table additions and deletions implementation code

Source: Internet
Author: User
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Example 1

The code is as follows Copy Code

<script>
function AddRow () {

Insert a row
Mynewrow = Document.all.myTable.insertRow ();
var lenrow = document.all.myTable.rows.length; Calculate total number of rows

if (Lenrow > 1) {
var point = Mynewrow.rowindex; Calculate Current line Position
var lencol = document.all.myTable.rows (0). Cells.length; Calculate a few columns per row

Insert Lencol TD
for (i=0 i < Lencol; i++) {
Document.all.myTable.rows (point). InsertCell ();
Document.all.myTable.rows (point). Cells (i). InnerHTML = parsefloat (Document.all.myTable.rows (point-1). Cells (i). InnerHTML) + Lencol;
}
}else if (Lenrow = = 1) {
The original table is 0 rows, initializing a row
for (i = 0; i < i++) {
Document.all.myTable.rows (0). InsertCell ();
Document.all.myTable.rows (0). Cells (i). InnerHTML = i;
}
}
}

function Delrow () {
Document.all.myTable.deleteRow ();
}
</script>
<a href= "Javascript:addrow ()" > Add one line </a>
<a href= "Javascript:delrow ()" > Minus one line </a>
<table name=mytable border=1 id=mytable>
</table>

Example 2

The code is as follows Copy Code

<HTML>
<title>form Object example</title>
<HEAD>
<script language= "JavaScript" >
function Delrow1 ()
{
var oelement=event.srcelement;
while (oelement.tagname!= "TR")
{
Oelement=oelement.parentelement;
}
var otbody=oelement.parentelement;
Otbody.removechild (oelement)
}

function Delrow2 ()//?h except when moving forward
{
var Currrowindex=event.srcelement.parentnode.parentnode.rowindex;
Document.all.yltable.deleteRow (currrowindex);//table10--table ID
}
function Insertrow1 ()//Added one-line Method 1
{
var newnode = document.getElementById (' yltable '). Lastchild.clonenode (True);
document.getElementById (' yltable '). appendchild (NewNode);
}

function Insertrow2 ()//Added one-line Method 2
{
Newrow=document.all.yltable.insertrow (-1);
var j_1 = document.all.yltable.rows.length;
Newcell=newrow.insertcell ();
Newrow.bgcolor= ' #FFFFFF ';
newcell.align= ' center ';
Newcell.innerhtml= "" +j_1+ "";


Newcell=newrow.insertcell ();
Newrow.bgcolor= ' #FFFFFF ';

newcell.align= ' center ';
Newcell.innerhtml= "<input type= ' text ' name= ' yltext ' +j_1+" '/> ";


Newcell=newrow.insertcell ();
Newrow.bgcolor= ' #FFFFFF ';

newcell.align= ' center ';

Newcell.innerhtml= ' <input name= button3 "type=" button "onclick=" Delrow1 () "value=" Delete 1 "> <input name=" Button3 "type=" button "onclick=" Delrow2 () "value=" Delete 2 ">";

Document.all.yltable.focus ();

}

function inserttable ()
{
var newnode = document.getElementById (' yltable '). CloneNode (True);
document.getElementById (' Ylform '). appendchild (NewNode);
}
</script>
</HEAD>
<BODY>
<form name= "Ylform" id= "Ylform" >
<center>
<input name= "button" type= "button" onclick= "Inserttable ()" value= "Add Table" >
<input name= "button2" type= "button" onclick= "Insertrow1 ()" value= "Add line 1" >

<input name= "button22" type= "button" onclick= "Insertrow2 ()" value= "Add line 2" >
</center>


<div style= "Overflow-y:auto; overflow-x:visible;width:85%;height:150px ">
<table border= "1" align= "center" width= "50%" id= "yltable" >
<tbody id=yl1>
<tr>
&LT;TD width= "30%" height= "><div align=" center ">1</div></td>
&LT;TD width= "40%" >
<div align= "center" >
<input name= "TextField" type= "text" value= "YL" >
</div></td>
&LT;TD width= "30%" ><div align= "center" >
<input name= "Button3" type= "button" onclick= "Delrow1 ()" value= "Delete 1" > <input name= "button3" type= "button" Onclick= "Delrow2 ()" value= "Delete 2" >
</div></td>
</tr>
</TBODY>
<tbody id=yl2>
<tr>
<td><div align= "center" >2</div></td>
<td><div align= "center" >
<input name= "Textfield2" type= "text" value= "Yanleigis" >
</div></td>
<td><div align= "center" >
<input name= "Button3" type= "button" onclick= "Delrow1 ()" value= "Delete 1" > <input name= "button3" type= "button" Onclick= "Delrow2 ()" value= "Delete 2" >
</div></td>
</tr>
</TBODY>
<tbody id=yl3>
<tr>
&LT;TD ><div align= "center" >3</div></td>
&LT;TD ><div align= "center" >
<input name= "Textfield22" type= "text" value= "Landgis@126.com" >
</div></td>
&LT;TD ><div align= "center" >
<input name= "Button3" type= "button" onclick= "Delrow1 ()" value= "Delete 1" > <input name= "button3" type= "button" Onclick= "Delrow2 ()" value= "Delete 2" >
</div></td>
</tr>
</TBODY>
</table>
</div>


<center>
</center>
</form>
</BODY>
</HTML>

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