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Recent Questions

!!! JSP Frequently Asked Questions !!!

How can get the checked values from multiple check box checked ? or How to Handle multiple check box checked ?

!!!Answer!!!- From Technical Expert

In the JSP page

for(int j = 0; j < messageList.size(); j++) {

Message msg = (Message)messageList.get(j);

<input type="checkbox" name="delmesg_<%=msg.getMessageId()%>" value="on">

}



Retrive the check box which is checked if more then one

In the Servlet

Enumeration params = request.getParameterNames();

List msgIdList = new ArrayList();

while ( params != null && params.hasMoreElements()){

String param = (String)params.nextElement();

//System.out.println("param--------"+param);

if(params != null && param.startsWith("delmesg_")){



String msgId = param.substring(param.indexOf("_") + 1 ,param.length());

System.out.println("msgId"+msgId);

msgIdList.add(msgId);



}

}



// msgIdList contains number of check box checled in the JSP

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