How to Add data Dynamically in JSP

[ash298]

Hi,
I am new with JSP. In my program, I have JSP interface,where user should be able to add,delete and edit customer names.
I have a ADD button,and I am calling addition() funcation on clickevent of ADD button, so I have to write code in my Addition() function (which is in Javascript)
Can you tell me how can I add data dynamically?
If you can explain with sample code, i will really appreciate it.

Many thanks in advance
-Ash

 

[baxybaxy]

Ash,

I am also fairly new, but as no-one else has replied I'll have a go...
Note i'm a c++ programmer at heart, so my code isn't exact (especially capitalisation etc) but hopefully it gives a starting point

It of course depends on how you are storing the data
Assuming your using some sort of XML data structure,
eg.

<customer data>
<customer id="00001">
<cname name="Big Fat Customer"/>
</customer id>
</customer data>

then you should read up on how to use
selectnodebyid
selectnodesbytag
xpath expressions
insertafter
insertbefore
appendchild
etc

for example
var x = document.selectnodebyid("00001"); // returns an Xml node for this id
x.insertAfter(newnode,x);
// add a new sibling customer id node
// -- will insert your new node after the id 00001

or
var x = document.selectnodesbytag("customer data"); // returns an xml node list for these tags
x.appendChild(newnode); // might need to be x[0].appendchild(newnode);

does the same thing

in both cases, you can create your new node like this:

var newnode = document.createElement("customer"); // create a node with tag 'customer'
var attrib = newnode.createAttribute("id"); // create an attrib for the customer node
attrib.value = "00002"; // set the id
newnode.attributes.append(attrib); // add the attributes to the new node
// now do the same for the customer name node
var customernamenode = newnode.createElement("cname");
var attrib2 = customernamenode.createAttribute("name");
attrib2.value="Even Fatter Customer";

customernamenode.attributes.append(attrib2);
// and append the name node to the new id node
newnode->appendChild(customernamenode);

// finally as above append to customer data

x.appendChild(newnode);

Hope it helps a bit
Cheers