how to get the parameter values, should the parameter names is assigned danamically ?

hello again,

well, this question is actually is an extend of my another question in jsp: "sumbit forms through a javascript and assign each form a different name dynamically".

in that question, the solution is: i used only one form for all submit actions. based on the error in the current posting, i guess i still need to use a different form for each submit action.

or is there another way to solve the error?

thanks so much for your reply,

lilyyan

you were actualy submitting one hidden value for each row. In the response servlet you probably retrieved only the first value (getParameterValue).

hi enachemc,

thanks so much! this works great : D

only one question, why the response servlet only retrieve the first value?

lilyyan

because that is what you request. If you want all the values, request them all: getParameterValues(paramName)

q1:

getParameterValues(paramName) is used for retrieving parameters in an array, so if getParameterValues(paramName) in the response servlet, all the value in memberIDList.size() will be retrieved?

===========================
i once used something like:

while(sqlRst.next()) {

out.println("<tr><td>Core No. </td>");
out.println("<td>File Name</td>");
out.println("<td>Version No.</td>");
.....
out.println("<a href=\"./coreStandardsF/" + fileName+ "\""+ " target=_blank>" +
fileName+ "</a>" +"<form action=\"delteCoreFiles.jsp\"  method = \"post\" name=\"deleteFilesForm\" onsubmit=\"return disp_confirm(this)\">"+

"<input type=\"hidden\"  name=\"filesName\"  value=\""+fileName+ "\"/>"+
"<input type=\"submit\" value=\"Delete this file?\" />"+"</form></td><td>");

} // end of while

===================

q2:

in the above code, i used different form for each record, and they all have the same name: "deleteFilesForm"  
and the coding is working.

my questions is , why in this case the forms having same name, but it's working?

and in the question of this posting i have to use only one form for all the submit actions?

will this work?

---------------------------

<% for (int i=0; i<memberIDList.size(); i++){ %>

code for printing record (i) ....
<form method="post" action=""  name="editForm" >
<input type="hidden" name="memberIDNumber" value="<%=memberIDList.get(i).toString() %>" />
<a href="#" onClick="submitThisForm(3)">
    <img src="editable.gif" border="0" alt="Edit profile"></a>
</form>
<% } %>

-----------------------------------------------------

well, actually it's not working. but i'm not sure the reason.
is that beacuse i'm not uing submit button,  instead i'm using a href link to submit the form?

yes and no.
yes .... but
the submitThisForm would have to know what form to submit

the form name is "editForm", the form id is: editDeleteFormID

is javascript of submitThisForm

document.getElementById("editDeleteFormID").submit();

the only difference here is: one is using a submit button and the other is using a href link

but why the one using a href link is not working ?

also in:
----------------------------------------
<% for (int i=0; i<memberIDList.size(); i++){ %>

code for printing record (i) ....
<form method="post" action=""  name="editForm" >
<input type="hidden" name="memberIDNumber" value="<%=memberIDList.get(i).toString() %>" />
<a href="#" onClick="submitThisForm(3)">
    <img src="editable.gif" border="0" alt="Edit profile"></a>
</form>
<% } %>

------------------------------------------
if i change to:

<% for (int i=0; i<memberIDList.size(); i++){ %>

code for printing record (i) ....
<form method="post" action=""  name="editForm" >
<input type="hidden" name="memberIDNumber" value="<%=memberIDList.get(i).toString() %>" />
< input type="image" src="editable.gif" border="0" alt="Edit profile" value ="Edit">
</form>
<% } %>

----------------------------------------------------------

this is work, right?

because a submit button is inherently associated with the parent form and will submit the parent form. A function is not part of a form. You will need a way to distinguish the forms.

you can transmit a reference of 'this' to the function from an input of the form to the submitThisForm(3) (like submitThisForm(3, this) ) and in the function, submitThisForm(no, inputEl) use inputEl.form.submit().

submitThisForm(3, this) : "this" is referred to the form, right?

inputEl.form.submit(). : inputEl is a variable name which reference to "this",

but why you use another form here: i..e nputEl.form.submit()   // .form.

will this work: document.inputEl.submit()  ?

also would you please reply my last posting ?

thanks so much

this is a reference to the input, not the form.

it will not work. There is no one to submit the form.

if i change to:

<% for (int i=0; i<memberIDList.size(); i++){ %>

code for printing record (i) ....
<form method="post" action="edit.jsp"  name="editForm" >
<input type="hidden" name="memberIDNumber" value="<%=memberIDList.get(i).toString() %>" />
< input type="image" src="editable.gif" border="0" alt="Edit profile" value ="Edit">
</form>
<% } %>

---------------------------------------

the image button is a submit button

>>this is a reference to the input, not the form.

so in inputEl.form.submit(), inputEl.form is actually reference the input field of the form, right?

i don't know an element of a form can be accessed in this way,  may you post some tutorial link about this, if possible?

yes, you're right. And yes, it will work. If this is the entire form, you will have a single parameter named memberIDNumber. Actualy you will also have two parameters named x and y generated by the image input. You can see this in the URL if you change the method of the form from post to get.

so, for example: in the case of submitting a form within a for/while loop and also the submit action is not fired by a real submit button,

 i can submit a form through a field reference and plus form, namely the format is :


fieldReference.form  // this will reference to the form, is this right?

i'm not quite get use to this notiation: fieldReference.form,
is there any tutorial link for this?

http://msdn.microsoft.com/library/default.asp?url=/workshop/author/dhtml/reference/objects/input_checkbox.asp
You can see that the input has a property of type form

well , i try to find the input has a property of type form from the link : http://msdn.microsoft.com/library/default.asp?url=/workshop/author/dhtml/reference/objects/input_checkbox.asp

but i didn't find it, would you please paste the code in that link ?

http://msdn.microsoft.com/workshop/author/dhtml/reference/objects/input_image.asp

this is code in the link: i didn't see any code indicate that input has a property type of form

--------------------------------------------------------------------------------------------------------


<INPUT TYPE=checkbox CHECKED ID=chk1 onclick="choosebox1()">Uncheck
    this check box for some free advice.
<P><INPUT TYPE=checkbox ID=chk2 onclick="choosebox2()">Or check
    this check box for a message from our sponsors.
<P ID=SampText>

This example implements the script when the user clicks either check box.

<SCRIPT>
function choosebox1(){
            alert("Never play leapfrog with a unicorn!")
}
function choosebox2(){
      SampText.insertAdjacentHTML("AfterBegin","Buy WonderWidgets! ");
}
</SCRIPT>

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really appreciate your replies. these replies are very helpful, sorry if i asked to many questions: D

3 A there :D