Re: Detail: How to cache the user's input in a jsp page?

Thu, 04 Sep 2003 05:19:06 -0700 

<%
for(int ii=0; ii<row_num; ii++) {
  String project_detail = request.getParameter("project_detail_" + ii);
  String quantity       = request.getParameter("quantity_" + ii);
  String unit_price     = request.getParameter("unit_price_" + ii);

  if (project_detail==null) project_detail = "";
  if (quantity==null) quantity = "";
  if (unit_price==null) unit_price = "";
%>
        <tr>
        <td width="25%" align="center"><%=ii+1%></td>
        <td width="25%" align="center">
        &nbsp;<INPUT tabIndex="2"
                    maxLength="100"
                         size="25"
                         name="project_detail_<%=ii+1%>"
                         value="<%=project_detail%>"></td>
        <td width="25%" align="center"  >
        &nbsp;<INPUT tabIndex="2"
                    maxLength="20"
                         size="10"
                         name="quantity_<%=ii+1%>"
                         value="<%=quantity%>"></td>
        <td width="25%" align="center" >
        &nbsp;<INPUT tabIndex="2"
                    maxLength="20"
                         size="10"
                         name="unit_price_<%=ii+1%>"
                         value="<%=unit_price%>"></td>
        </tr>

<%}%>

-Tim

engp0510 wrote: 
Hi , ALL,
The following is my jsp page, store it into a file named "MyQUESTION.jsp" , pay attention for 
the "Subjuect" while u choosing the select.

<% int item_num = 5;
int row_num = 1;
if(request.getParameter("_rows")!=null){
String rowstr = (request.getParameter("_rows"));
try{
row_num = Integer.parseInt(rowstr); }
catch(NumberFormatException ne){}
}
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<html>
<head>

</head>
<center>
<body>

<table border="0" cellpadding="0" width="100%" cellspacing="0" bordercolor="#FFFFFF" height="384"> <TR><TD align=right height=279>
<FORM name=form1 action="/operator" method=post>

<TABLE cellSpacing=1 width="100%" border=1 height="261" align="left">
<TBODY> <TR class="LGREY">
<TD class="L" align=right width="25%" >Subject&nbsp; : </TD>
<TD class="L" width="75%" >&nbsp;
<INPUT tabIndex=1 maxLength=100 size=40 name=subject > </TD> </TR>
<TR class="LGREY">
<TD class="L" align=right width="100%" colspan="2">
<table cellSpacing=0 width="100%" border=1 align="left" bordercolor="#cccccc"> <tr>
<td width="25%" align="center">
<select size="1" name=item_num ONCHANGE="location=this.options[this.selectedIndex].value;">
<%for(int i=1;i<=5;i++){%>
<option value="\MyQUESTION.jsp?_rows=<%=i%>"<%if(row_num==i){out.print("SELECTED");}%> >-<%=i%>-</option>
<%}%>
</select>
</td>
<td width="25%" align="center"><b>Project Detail</b></td>
<td width="25%" align="center"><b>Quantity</b></td>
<td width="25%" align="center"><b>Unit Price( S$)</b></td>
</tr>
<%for(int ii=0;ii<row_num;ii++){%>
<tr>
<td width="25%" align="center" ><%=ii+1%></td>
<td width="25%" align="center" >
&nbsp;<INPUT tabIndex=2 maxLength=100 size=25 name=project_detail_<%=ii+1%>></td>
<td width="25%" align="center" >
&nbsp;<INPUT tabIndex=2 maxLength=20 size=10 name=quantity_<%=ii+1%>></td>
<td width="25%" align="center" >
&nbsp;<INPUT tabIndex=2 maxLength=20 size=10 name=unit_price_<%=ii+1%>></td>
</tr> <%}%> </table>
</TD></TR> </TBODY>
</TABLE></TD></TR>
<TR>
<TD class="L" align=right height=25>
<P align=center><input type=submit value=" Create">
<input type=submit value=" Clear "></P></TD></TR></TBODY></TABLE></FORM></CENTER>

</BODY>
</HTML>



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