hi
I have just took from internet dinamic table. this table is dynamic and its rows dynamically can be increased.
but i would like how create SUM function that automatically sums each added row value (text value)
here is the code
if possible please help me
Thanks beforehand
Code:
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title></title>
<script type="text/javascript">
/*<![CDATA[*/
function addRow()
{
// grab the element, i.e. the table your editing, in this we're calling it
// 'mySampleTable' and it is reffered to in the table further down on the page
// with a unique of id of you guessed it, 'mySampleTable'
var tbl = document.getElementById('mySampleTable');
// grab how many rows are in the table
var lastRow = tbl.rows.length;
// if there's no header row in the table (there should be, code at least one
//manually!), then iteration = lastRow + 1
var iteration = lastRow;
// creates a new row
var row = tbl.insertRow(lastRow);
// left cell
// insert a cell
var cellLeft = row.insertCell(0);
// here we're just using numbering the cell, like anything else you don't
// have to use this, but i've kinda noticed users tend to like them
var textNode = document.createTextNode(iteration);
// takes what we did (create the plain text number) and appends it the cell
// we created in the row we created. NEAT!
cellLeft.appendChild(textNode);
// right cell
// another cell!
var cellRight = row.insertCell(1);
// creating an element this time, specifically an input
var el = document.createElement('input');
// a data type of text
el.type = 'text';
// the name of the element txtRow, and because this is dynamic we also
// append the row number to it, so for example if this is the eigth row
// being created the text box will have the name of txtRow8. super fantastic.
el.name = 'txtRow' + iteration;
// the exact same thing with a unique id
el.id = 'txtRow' + iteration;
// set it to size of 40. setting sizes is good.
el.size = 40;
// same thing as earlier, append our element to our freshly and clean cell
cellRight.appendChild(el);
// select cell
// our last cell!
var cellRightSel = row.insertCell(2);
// create another element, this time a select box
var sel = document.createElement('select');
// name it, once again with an iteration (selRow8 using the example above)
sel.name = 'selRow' + iteration;
// crates options in an array
// the Option() function takes the first parameter of what is being displayed
// from within the drop down, and the second parameter of the value it is carrying over
sel.options[0] = new Option('text zero', 'value0');
sel.options[1] = new Option('text one', 'value1');
sel.options[2] = new Option('text two', 'value2');
// append our new element containing new options to our new cell
cellRightSel.appendChild(sel);
}
function removeRow()
{
// grab the element again!
var tbl = document.getElementById('mySampleTable');
// grab the length!
var lastRow = tbl.rows.length;
// delete the last row if there is more than one row!
if (lastRow > 2) tbl.deleteRow(lastRow - 1);
}
/*]]>*/
</script>
<script type="text/javascript">
function sum(){
}
</script>
</head>
<body>
<form action="miro.html" name="eval_edit" method="post" format="html">
<table align="center" width = "75%">
<tr>
<td align = "center">
click add to you know, add a row, and remove to remove a row, and submit to submit your page! whee!
</td>
</tr>
<tr>
<td align = "center">
<!--- very imporant to give the table an id --->
<!--- otherwise it won't know where to edit --->
<table border="1" id="mySampleTable">
<tr>
<td>
Lesson
</td>
<td>
Title
</td>
<td>
Instructor
</td>
</tr>
<!--- i create the initial row by hand, there are a lot of --->
<!--- different ways to do this depending on what parsing --->
<!--- language you use, i found this was easiest for the --->
<!--- snippet, but experiment, do your thing mang. --->
<!--- this matches the same specs we laid out in the javascript --->
<tr>
<td>
1
</td>
<td>
<input type="text" name="txtRow1" id="txtRow1" size="40" /></td>
<td>
<select name="selRow0">
<option value="value0">text zero</option>
<option value="value1">text one</option>
<option value="value2">text two</option>
</select>
</td>
</tr>
</table>
<input name="total" />
<!--- our buttons call our javascript functions when clicked --->
<input type="button" value="Add" onclick="addRow();" />
<input type="button" value="Remove" onclick="removeRow();" />
<input type="button" value="SUM" onClick="sum()"/>
<input type="submit" value="Submit" />
</td>
</tr>
</table>
</form>
</body>
</html>
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