User Name Password Register
DaniWeb IT Discussion Community
All
What is DaniWeb IT Discussion Community?
You're currently browsing the JavaScript / DHTML / AJAX section within the Web Development category of DaniWeb, a massive community of 373,474 software developers, web developers, Internet marketers, and tech gurus who are all enthusiastic about making contacts, networking, and learning from each other. In fact, there are 3,979 IT professionals currently interacting right now! Registration is free, only takes a minute and lets you enjoy all of the interactive features of the site.
Please support our JavaScript / DHTML / AJAX advertiser: Lunarpages Web Hosting
Views: 1373 | Replies: 1
Reply
Join Date: Mar 2008
Posts: 3
Reputation: HenryForbes is an unknown quantity at this point 
Rep Power: 0
Solved Threads: 0
HenryForbes HenryForbes is offline Offline
Newbie Poster

Question calculating values using onclick

  #1  
Mar 1st, 2008
Help,
I have a web based form containg values typed in by the user. The first value is called noItems, which is outside the form. The form contains a persons name, the number of items,noSub, thay have submitted and their final grade. I need to use noItems and noSub to calulate their prcentage and store it in the grade column of the table. How do I use a command button to, when clicked, go through the data on the table and calculate the final grade(as a percentage for each row?
my code is below:
<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001"%>
<!--#include file="Connections/conn_3_coast.asp" -->
<%
Dim rs_homework
Dim rs_homework_cmd
Dim rs_homework_numRows

Set rs_homework_cmd = Server.CreateObject ("ADODB.Command")
rs_homework_cmd.ActiveConnection = MM_conn_3_coast_STRING
rs_homework_cmd.CommandText = "SELECT DISTINCT tblStudent.Name, studentResults.enrolno FROM tblStudent INNER JOIN studentResults ON tblStudent.enrolno = studentResults.enrolno ORDER BY tblStudent.Name"
rs_homework_cmd.Prepared = true

Set rs_homework = rs_homework_cmd.Execute
rs_homework_numRows = 0
%>
<%
Dim Repeat1__numRows
Dim Repeat1__index

Repeat1__numRows = 25
Repeat1__index = 0
rs_homework_numRows = rs_homework_numRows + Repeat1__numRows
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<script type="text/javascript">
<!--
function calcGrade(){


}
function MM_callJS(jsStr) { //v2.0
return eval(jsStr)
}
//-->
</script>
</head>

<body>
<h1>Coast@JCC</h1>
<h1>Homework</h1>
<form id="form2" name="form2" method="post" action="">
<table width="293" border="1">
<tr>
<td width="175">Number of Homeworks this period</td>
<td width="102"><input type="text" name="noHomeworks" id="noHomeworks" /></td>
</tr>
</table>
</form>
<p>&nbsp;</p>
<form id="form1" name="form1" method="post" action="">
<table width="596" border="1">
<tr>
<td width="201">Name</td>
<td width="107">Enrolment Number</td>
<td width="131">Homeworks Submited</td>
<td width="129">Grade</td>
</tr>
<tr>
<%
While ((Repeat1__numRows <> 0) AND (NOT rs_homework.EOF))
%>
<td><%=(rs_homework.Fields.Item("Name").Value)%> </td>
<td><%=(rs_homework.Fields.Item("enrolno").Value)%> </td>
<td><input type="text" name="submitted" id="submitted" value="0"/></td>
<td><input type="text" name="hwkGrade" id="hwkGrade" value="0" /></td><tr></tr>
<%
Repeat1__index=Repeat1__index+1
Repeat1__numRows=Repeat1__numRows-1
rs_homework.MoveNext()
Wend
%>
<td height="110"></tr>
</table>
</form>
<form id="form3" name="form3" method="post" action="">
<input name="Calculate" type="submit" id="Calculate" onclick="MM_callJS('calcGrade()')" value="Submit" />
</form>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>Page title goes here</p>
<p>&nbsp;</p>
<p>Page title goes here</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
</body>
</html>
<%
rs_homework.Close()
Set rs_homework = Nothing
%>
AddThis Social Bookmark Button
Reply With Quote  
Join Date: Sep 2005
Posts: 611
Reputation: digital-ether will become famous soon enough digital-ether will become famous soon enough 
Rep Power: 5
Solved Threads: 38
Moderator
digital-ether's Avatar
digital-ether digital-ether is offline Offline
Practically a Master Poster

Help Re: calculating values using onclick

  #2  
Mar 2nd, 2008
Originally Posted by HenryForbes View Post
Help,
I have a web based form containg values typed in by the user. The first value is called noItems, which is outside the form. The form contains a persons name, the number of items,noSub, thay have submitted and their final grade. I need to use noItems and noSub to calulate their prcentage and store it in the grade column of the table. How do I use a command button to, when clicked, go through the data on the table and calculate the final grade(as a percentage for each row?
my code is below:
<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001"%>
<!--#include file="Connections/conn_3_coast.asp" -->
<%
Dim rs_homework
Dim rs_homework_cmd
Dim rs_homework_numRows

Set rs_homework_cmd = Server.CreateObject ("ADODB.Command")
rs_homework_cmd.ActiveConnection = MM_conn_3_coast_STRING
rs_homework_cmd.CommandText = "SELECT DISTINCT tblStudent.Name, studentResults.enrolno FROM tblStudent INNER JOIN studentResults ON tblStudent.enrolno = studentResults.enrolno ORDER BY tblStudent.Name"
rs_homework_cmd.Prepared = true

Set rs_homework = rs_homework_cmd.Execute
rs_homework_numRows = 0
%>
<%
Dim Repeat1__numRows
Dim Repeat1__index

Repeat1__numRows = 25
Repeat1__index = 0
rs_homework_numRows = rs_homework_numRows + Repeat1__numRows
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<script type="text/javascript">
<!--
function calcGrade(){


}
function MM_callJS(jsStr) { //v2.0
return eval(jsStr)
}
//-->
</script>
</head>

<body>
<h1>Coast@JCC</h1>
<h1>Homework</h1>
<form id="form2" name="form2" method="post" action="">
<table width="293" border="1">
<tr>
<td width="175">Number of Homeworks this period</td>
<td width="102"><input type="text" name="noHomeworks" id="noHomeworks" /></td>
</tr>
</table>
</form>
<p>&nbsp;</p>
<form id="form1" name="form1" method="post" action="">
<table width="596" border="1">
<tr>
<td width="201">Name</td>
<td width="107">Enrolment Number</td>
<td width="131">Homeworks Submited</td>
<td width="129">Grade</td>
</tr>
<tr>
<%
While ((Repeat1__numRows <> 0) AND (NOT rs_homework.EOF))
%>
<td><%=(rs_homework.Fields.Item("Name").Value)%> </td>
<td><%=(rs_homework.Fields.Item("enrolno").Value)%> </td>
<td><input type="text" name="submitted" id="submitted" value="0"/></td>
<td><input type="text" name="hwkGrade" id="hwkGrade" value="0" /></td><tr></tr>
<%
Repeat1__index=Repeat1__index+1
Repeat1__numRows=Repeat1__numRows-1
rs_homework.MoveNext()
Wend
%>
<td height="110"></tr>
</table>
</form>
<form id="form3" name="form3" method="post" action="">
<input name="Calculate" type="submit" id="Calculate" onclick="MM_callJS('calcGrade()')" value="Submit" />
</form>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>Page title goes here</p>
<p>&nbsp;</p>
<p>Page title goes here</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
</body>
</html>
<%
rs_homework.Close()
Set rs_homework = Nothing
%>


You'll need to look into the Javascript DOM. You'll need to select all the <tr> elements in your table and then go through the <td> elements in each <tr> element, calculating the sum of the <td> nodeValue's. (whats inside the <td> element).

first give your <table> and id so it's easier to select. eg: id="mytable".

var tbl = document.getElementById('mytable');

select all the <tr> elements.

var trs = tbl.getElementsByTagName('tr');

iterate through each tr.

for (var i = 0; i < trs.length; i++)
{

// get all the tds in this tr
var tds = tr[i].getElementsByTagName('td');
var sum = 0;
for (var j = 0; j < tds.length; j++) {
sum += tds.nodeValue; // change to appropriate code
}

}

hope that starts you off in the right direction.
www.fijiwebdesign.com - web design and development and fun
Cpanel Email - Let users Register email accounts on your website upon registration
Ajax Chat - Fully browser based chat!
Reply With Quote  
Reply

Only community members can participate in forum threads. You must register or log in to contribute.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

 

DaniWeb JavaScript / DHTML / AJAX Marketplace
Thread Tools Display Modes

Other Threads in the JavaScript / DHTML / AJAX Forum

All times are GMT -4. The time now is 5:26 am.
Forum system based on vBulletin Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
©2003 - 2008 DaniWeb® LLC