Using a form with two input type="submit" ... buttons...

Question

Hello All!
I'm using a form to add and remove parameters for a service definition.
<form action="serviceinput.jsp" method="post">
               <table>
                    <tr>
                         <td><b>Level</b></td>
                         <td><b>Fieldname</b></td>
                         <td><b>Stucturename</b></td>
                         <td><b>Type</b></td>
                         <td><b>Format</b></td>
                         <td><b>Optional</b></td>
                         <td><b>Semantics</b></td>
                    </tr>          
     <%
                    for (Iterator iterParameters = parameters.iterator(); iterParameters.hasNext();)
          Parameter parameter = (Parameter) iterParameters.next();
     %>
                    <tr>
          <td><%= parameter.getLevel() %></td>
          <td><%= parameter.getFieldname() %></td>
          <td><%= parameter.getStructurename() %></td>
          <td><%= parameter.getType() %></td>
          <td><%= parameter.getFormat() %></td>
          <td><%= parameter.getOptional() %></td>
          <td><%= parameter.getSemantics() %></td>
                    </tr>     
     <%
     %>
               </table>
               <input type="submit" name="<%= parameters.addParameter() %>" value="add"/>
               <input type="submit" name="<%= parameters.removeParameter() %>" value="remove"/>
          </form>
The special thing about is, that I'm using two <input type="submit"...> buttons.
The idea is, that I'd like to add one more row with attributes by clicking the "add" button and removing one row by clicking the "remove" button.
If I use just one of them, it works fine. If I use both of them, nothing happens at all.
Isn't it allowed to use two <input type="submit"...> fields?
Is there an alternative? How can I implement my form the correct way?
Thanks a lot in advance to all!
Regards,
Tomi

Answer 1

Hi,
Hai Tomi ,
As swati already Explained U can try it with buttons,
But u have to make a Hidden field and set the value of the hidden field
with the Javascript code after pressing the button , Call a client side function which has an argument as given below
Validate the Flag field in the JSP file
<script language=javascript>
function Validate(s)
if(s==1)
     document.forms['ServiceInput'].elements["flag"].value="add";
else
     document.forms['ServiceInput'].elements["flag"].value="Remove";
document.forms['ServiceInput'].submit();
alert("hai");
</script>
<form name="ServiceInput" action="serviceinput.jsp" method="POst">
<table>
<tr>
<td><b>Level</b></td>
<td><b>Fieldname</b></td>
<td><b>Stucturename</b></td>
<td><b>Type</b></td>
<td><b>Format</b></td>
<td><b>Optional</b></td>
<td><b>Semantics</b></td>
</tr>
<%
for (Iterator iterParameters = parameters.iterator(); iterParameters.hasNext();)
Parameter parameter = (Parameter) iterParameters.next();
%>
<tr>
<td><%= parameter.getLevel() %></td>
<td><%= parameter.getFieldname() %></td>
<td><%= parameter.getStructurename() %></td>
<td><%= parameter.getType() %></td>
<td><%= parameter.getFormat() %></td>
<td><%= parameter.getOptional() %></td>
<td><%= parameter.getSemantics() %></td>
</tr>
<%
%>
</table>
<input type=hidden name=flag value="bb">
<input type="Button" name="b1" value="add" onclick= "Validate(1)">
<input type="Button" name="b2" value="remove" onclick= "Validate(2)">
</form>