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POHow to calculate values dynamically from textbox using jQuery?
 

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  1. POHow to calculate values dynamically from textbox using jQuery?
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    <p>I have an <code>invoice.jsp</code> page where I have to calculate some value in the textbox using jQuery or with any other way.</p> <p>I don't know much about jQuery. Please help me to solve this problem.</p> <p>In my invoice there is a quantity textbox. If the user enters the quantity then the calculated price should be calculated dynamically i.e <code>(total_subPrice= unit_price * quantity)</code> and shown in another textbox called "price".</p> <p>And again the total sum of all the prices should appear in the button as a Total.</p> <p>Please note: all the row values are coming from my database table based on the selection of items by users.</p> <p>I have used only this code to show values in my <code>invoice.jsp</code> page:</p> <pre><code>&lt;s:iterator value="#session.BOK" status="userStatus"&gt; &lt;tr style="height: 10px;"&gt; &lt;td width="65%" align="left"&gt;&lt;s:property value="bookTitile"/&gt;&lt;/td&gt; &lt;td width="10%" align="left"&gt;&lt;s:property value="price"/&gt;&lt;/td&gt; &lt;td width="10%" align="center"&gt;&lt;s:textfield name="quantity" value="%{quantity}" size="2" /&gt;&lt;/td&gt; &lt;td width="15%" align="center" &gt; &lt;s:textfield value="%{price}" name="" size="6"&gt;&lt;/s:textfield&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/s:iterator&gt; </code></pre> <p>And my <code>invoice.jsp</code> output looks like this: <img src="https://i.stack.imgur.com/DQMz4.png" alt="enter image description here"></p> <p>I have no idea how to calculate the <code>line Total</code> based on the quantity chosen and also display the sum of all the <code>line total</code> in the grand total textbox (see below invoice image).</p> <p>I also tried <a href="http://jsfiddle.net/bozdoz/LGyeq/" rel="nofollow noreferrer">this</a> but I am still unable to solve my problem.</p> <p>My full JSP code:</p> <pre><code>&lt;table width="100%" height="50%" border="0" cellpadding="0" cellspacing="0"&gt; &lt;tr&gt; &lt;td height="74%"&gt; &lt;s:form action="dfs" id="form3" theme="simple"&gt; &lt;table width="100%" height="100%" border="0" cellpadding="0" cellspacing="0" id="your_content"&gt; &lt;tr&gt; &lt;td valign="top" height="10%"&gt; &lt;div id="invNum"&gt;Invoice# 12688&lt;/div&gt; &lt;div id="ttielMain"&gt;Vision Books&lt;/div&gt; &lt;div id="Orgaddress"&gt; Thamel Kathmandu Nepal&lt;/div&gt; &lt;div id="phoneNum"&gt; Tel# 00977-1-12173803&lt;/div&gt; &lt;div id="websiteOrg"&gt; www.thebestbookfinder.com&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td valign="top" width="100%" align="left"&gt; ----------------------------------------------------------- ----------------------------------- &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td height="6%" valign="top" width="100%"&gt; &lt;table width="100%" height="100%" border="0" cellpadding="0" cellspacing="0"&gt; &lt;tr style="height: 10px;font-family: serif;font-weight: bold;font-size: 14px;"&gt; &lt;td width="65%" align="left"&gt;Title&lt;/td&gt; &lt;td width="10%" align="left"&gt;Unit Price&lt;/td&gt; &lt;td width="10%" align="center"&gt;Qty&lt;/td&gt; &lt;td width="15%" align="left"&gt;Line Total&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td height="1%" valign="top" width="100%"&gt; &lt;table width="100%" height="100%" border="0" cellpadding="0" cellspacing="0"&gt; &lt;tr style="height: 10px;"&gt; &lt;td width="65%" align="left"&gt; ------------------------------------------------------- &lt;/td&gt; &lt;td width="10%" align="left"&gt;----------&lt;/td&gt; &lt;td width="10%" align="center"&gt;-----&lt;/td&gt; &lt;td width="15%" align="left"&gt;-------------&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td height="65%" valign="top" width="100%"&gt; &lt;table width="100%" height="100%" border="0" cellpadding="0" cellspacing="0"&gt; &lt;s:iterator value="#session.BOK" status="userStatus"&gt; &lt;tr style="height: 10px;"&gt; &lt;td width="65%" align="left"&gt;&lt;s:property value="bookTitile"/&gt;&lt;/td&gt; &lt;td width="10%" align="left"&gt;&lt;s:property value="price"/&gt;&lt;/td&gt; &lt;td width="10%" align="center"&gt;&lt;s:textfield name="quantity" value="%{quantity}" size="2" /&gt;&lt;/td&gt; &lt;td width="15%" align="center"&gt;&lt;s:textfield value="%{price}" name="" size="6"&gt;&lt;/s:textfield&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/s:iterator&gt; &lt;/table&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td height="1%" valign="top" width="100%"&gt; &lt;table width="100%" height="100%" border="0" cellpadding="0" cellspacing="0"&gt; &lt;tr style="height: 10px;"&gt; &lt;td width="100%" align="right" colspan="5"&gt; ------------------------------------ &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td height="1%" valign="top" width="100%"&gt; &lt;table width="100%" height="100%" border="0" cellpadding="0" cellspacing="0"&gt; &lt;tr style="height: 10px;"&gt; &lt;td width="100%" align="right" colspan="5" style="font-weight: b"&gt; &lt;s:set var="total" value="%{0}" /&gt; &lt;s:iterator value="#session.BOK"&gt; &lt;s:set var="total" value="%{price + #attr.total}" /&gt; &lt;/s:iterator&gt; &lt;s:textfield name="subtotal" value="%{'' + #attr.total}" size="5"&gt; &lt;/s:textfield&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td height="1%" valign="top" width="100%"&gt; &lt;table width="100%" height="100%" border="0" cellpadding="0" cellspacing="0"&gt; &lt;tr style="height: 10px;"&gt; &lt;td width="100%" align="right" colspan="5"&gt;Discount:&lt;sj:textfield name="amt" size="1" placeholder=" %"/&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td height="1%" valign="top" width="100%"&gt; &lt;table width="100%" height="100%" border="0" cellpadding="0" cellspacing="0"&gt; &lt;tr style="height: 10px;"&gt; &lt;td width="100%" align="right" colspan="5"&gt; -------------------------------------------------------------------------------------------------- &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td height="1%" valign="top" width="100%"&gt; &lt;table width="100%" height="100%" border="0" cellpadding="0" cellspacing="0"&gt; &lt;tr style="height: 10px;"&gt; &lt;td width="100%" align="right" colspan="5" style="font-weight: bolder;"&gt; &lt;s:set var="total" value="%{0}" /&gt; &lt;s:iterator value="#session.BOK"&gt; &lt;s:set var="total" value="%{price + #attr.total}" /&gt; &lt;/s:iterator&gt; Total: &lt;s:property value="%{'' + #attr.total}" /&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td height="1%" valign="top" width="100%"&gt; &lt;table width="100%" height="100%" border="0" cellpadding="0" cellspacing="0"&gt; &lt;tr style="height: 10px;"&gt; &lt;td width="100%" align="right" colspan="5"&gt; -------------------------------------------------------------------------------------------------- &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/td&gt; &lt;/tr&gt; </code></pre>
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    1. USAshutosh Singh
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    1. COCould you please post the generated HTML markup?
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      1. POHow to calculate values dynamically from textbox using jQuery?
      1. USMathias Becher
    2. COThe 1990s called, they want their nested tables back.
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      1. POHow to calculate values dynamically from textbox using jQuery?
      1. USdda
    3. CO@bechm http://stackoverflow.com/questions/13430222/how-to-dynamically-calculate-value-in-the-text-box/13430320#13430320
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      1. POHow to calculate values dynamically from textbox using jQuery?
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