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From bilgerkan <bilger...@yahoo.com>
Subject How to pass "id" to any method by means of <input type="checkbox"> and submit button?
Date Thu, 30 Jul 2009 07:48:19 GMT

Hello, 

I'm new on struts and want to handle following problem: 

I am listing all the invoice items via <logic:iterate> in my
invoiceList.jsp. Beside each invoice line, there is a checkbox, which I want
to use as following: User clicks on any checkbox to select the appropriate
invoice item beside it, and after clicking on the submit button at the
bottom, the id of the selected invoice shoould be transferred to
InvoiceEditAction.editInvoice() method. 

But I get following error message unfortunately: 
javax.servlet.ServletException: java.lang.NumberFormatException: For input
string: "" 
So I think the id can not be transferred at all. 

Below you can find my invoiceList.jsp. Any help is appreciated. 

<html> 
<body> 
<html:form action="invoiceEdit"> 

<table > 
<tbody> 
<tr> 
<td></td> 
<td>id</td> 
<td>Invoice No</td> 
<td>Date</td> 
</tr> 

<logic:iterate name="invoiceListForm" property="invoices" id="invoice"> 
<tr> 
<td > 
<input 
type="checkbox" 
value="<bean:write name="invoice" property="id"/>" 
name="editInvoice"> 
</td> 
<td><bean:write name="invoice" property="id" /></td> 
<td><bean:write name="invoice" property="invoiceNo" /></td> 
<td><bean:write name="invoice" property="date" /></td> 
</tr> 
</logic:iterate> 
</tbody> 
</table> 

<html:button property="add" 
onclick="location.href='invoiceEdit.do?do=addInvoice'">Add a new invoice 
</html:button> 

  

<html:button property="back" 
onclick="location.href='default.do'">Back to menu 
</html:button> 

  
<%-- set the parameter for the dispatch action --%> 
<html:hidden property="do" value="editInvoice" /> 

<html:submit>Update</html:submit> 

</html:form> 

</body> 
</html> 

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