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how to keep register page data if register fails

 
Ranch Hand
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i mean to say- now there is one register page with fields such as first name, last name,username,.... ok. so now i will fill in the details and when i click submit button and say the register fails because of similar username already exists. now the remaining fields should not clear except the username. how do we achieve that? this s my code:


register.jsp:



This is servlet class:

RegisterServlet.java:

 
Ranch Hand
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Hi,
Use an ajax validation for username .
 
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All form elements have a value attribute that can be used to set their initial values. You can use it to restore the submitted values to the elements.

Or, as pointed out, using Ajax to submit the values causes the original form to stay on the browser while the request is being processed in the background.

The latter is how I do a lot of form submissions, but it's a little more advanced and requires JavaScript.
 
Mohan Mehra
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Bear Bibeault wrote:All form elements have a value attribute that can be used to set their initial values. You can use it to restore the submitted values to the elements.

.



how do i do this?
 
Bear Bibeault
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Get the values from the request and use JSP to set them into the value attributes.
 
Greenhorn
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Ajax is the best way, without sending the data to the server it will validates at the client side itself...
 
Consider Paul's rocket mass heater.
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