โดย M009 » 21/05/2013 1:24 pm
ได้แล้วครับ ขอบคุณครับ
โค้ด: เลือกทั้งหมด
<html>
<head>
<script type="text/javascript" language="javascript">
function addNewItem()
{
var textbox = document.getElementById('MyTextbox');
var textbox1 = document.getElementById('MyTextbox1');
var listbox = document.getElementById('MyListbox');
var listbox1 = document.getElementById('MyListbox1');
var newOption = document.createElement('option');
newOption.value = textbox.value;
newOption.innerHTML = textbox.value;
listbox.appendChild(newOption);
var newOption1 = document.createElement('option');
newOption1.value = textbox1.value;
test = test + Number(textbox1.value) ;
newOption1.innerHTML = textbox1.value;
listbox1.appendChild(newOption1);
document.getElementById('test').value = test ;
}
var test = 0 ;
</script>
</head>
<body>
<input id="MyTextbox1" type="textbox" />
<input id="test" type="textbox" />
<select id="MyTextbox" size="10">
<option value="test1">test1</option>
<option value="test2">test2</option>
<option value="test3">test3</option>
</select>
<input type="button" value="Add Item" onclick="javascript:addNewItem()" />
<br /><br />
MyListbox
<select id="MyListbox" size="10">
<option value="test1">test1</option>
<option value="test2">test2</option>
<option value="test3">test3</option>
</select>
MyListbox1
<select id="MyListbox1" size="10">
<option value="test1">1</option>
<option value="test2">2</option>
<option value="test3">3</option>
</select>
ได้แล้วครับ ขอบคุณครับ
[code]
<html>
<head>
<script type="text/javascript" language="javascript">
function addNewItem()
{
var textbox = document.getElementById('MyTextbox');
var textbox1 = document.getElementById('MyTextbox1');
var listbox = document.getElementById('MyListbox');
var listbox1 = document.getElementById('MyListbox1');
var newOption = document.createElement('option');
newOption.value = textbox.value;
newOption.innerHTML = textbox.value;
listbox.appendChild(newOption);
var newOption1 = document.createElement('option');
newOption1.value = textbox1.value;
test = test + Number(textbox1.value) ;
newOption1.innerHTML = textbox1.value;
listbox1.appendChild(newOption1);
document.getElementById('test').value = test ;
}
var test = 0 ;
</script>
</head>
<body>
<input id="MyTextbox1" type="textbox" />
<input id="test" type="textbox" />
<select id="MyTextbox" size="10">
<option value="test1">test1</option>
<option value="test2">test2</option>
<option value="test3">test3</option>
</select>
<input type="button" value="Add Item" onclick="javascript:addNewItem()" />
<br /><br />
MyListbox
<select id="MyListbox" size="10">
<option value="test1">test1</option>
<option value="test2">test2</option>
<option value="test3">test3</option>
</select>
MyListbox1
<select id="MyListbox1" size="10">
<option value="test1">1</option>
<option value="test2">2</option>
<option value="test3">3</option>
</select>
[/code]