getting 2D array view in jsp from actionform properties

[jakeer ahmed]

Dear all,
i have 2 action form properties of string type(two selectboxes in my jsp), which represent indexes of two dimentional array . again this array is also 2D string array acion form property. so when ever user changes the values in select boxes , i want an array of text fields (my action form 2D array) appear in jsp dynamically.
i m some wat new to struts,can anybody help me.
thanks in advance.

[jakeer ahmed]

I am using the fallowing code

jsp code:
----------------------

<jsp:useBean id="mybean" class="org.bigtec.babe.form.PumpCalibForm" scope="session" />


<td >No.of Flow Points</td>
<html:select style="width:80px;" name="PumpCalibForm" property="flowpoints" onchange="javascript:funcPass('array')">
<option value="0">Select</option>
<logicresent name="PumpCalibForm" property="flowRepeats">
<htmlptions name="PumpCalibForm" property="flowRepeats" />
</logicresent>
</html:select>


<tr><td >No.of Time Points</td>

<html:select style="width:80px;" name="PumpCalibForm" property="timepoints" onchange="javascript:funcPass('array')">
<option value="0">Select</option>
<logicresent name="PumpCalibForm" property="timeRepeats">
<htmlptions name="PumpCalibForm" property="timeRepeats" />
</logicresent>
</html:select>

</tr>


<logicresent name="PumpCalibForm" property="flowratearray" >
<%
int flow=Integer.parseInt(mybean.getFlowpoints());
int timepoints=Integer.parseInt(mybean.getTimepoints());
for(int i=0;i<flow;i++)
for(int j=0;j<timepoints;j++){
%>

<html-el:text name="PumpCalibForm" property="flowratearray[<%=i%>][<%=j%>] />



<%} %>
</logicresent>



My Action class code is:
------------------------------------

else if("array".equals(action)){

int i=Integer.parseInt(pcform.getFlowpoints());
int j=Integer.parseInt(pcform.getTimepoints());

pcform.setFlowratearray(new String[i][j]);


}

By using this code , my JSP view is going wrong.
what is the problem here.
If any solution,i will be greatful.
thanks.

[Merrill Higginson]

This is a common problem in web applications. Check out this thread for some possible approaches.