checkbox with dropdown listbox in jsp

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periasamy.s

checkbox with dropdown listbox in jsp
1 Answer(s) 6 years and 6 months ago
Posted in : JSP-Servlet

i loaded the the data into the drop down listbox in jsp from access database.now i have to add a check box,if it checked means dropdownlist box carryout the data's,else it should be empty.plz help me..plz sends the code for that in jsp.its very very urgent one....

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April 7, 2011 at 1:56 PM

1)select.jsp:

<%@page import ="java.sql.*" %>
<html>
     <head>
     <script type="text/javascript">
     function showData(){ 
    if (document.form.check.checked==true){

xmlHttp=GetXmlHttpObject()
var url="select2.jsp";
xmlHttp.onreadystatechange=stateChanged 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}
}
function stateChanged(){ 
if(xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){ 
     document.getElementById("name").innerHTML=xmlHttp.responseText;   

    } 
}
function GetXmlHttpObject(){
var xmlHttp=null;
try{
  xmlHttp=new XMLHttpRequest();
 }
catch (e){
 try  {
  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e){
  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
 }
return xmlHttp;
}
</script>
   </head>
   <body>
   <form name="form">
   <br><br>

      <input type="checkbox" id="check"  onclick="showData();">

   <div id='name'>
<b>Select Data</b>  
<select name='name' >
<option value='-1'></option>
</select>
</div> 
   </form>    
   </body>
   </html>

2)select2.jsp:

<%@page import="java.sql.*"%>
<%
 String buffer="<select name='name' ><option value='-1'>Select</option>";  
 try{
  Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
           Connection con = DriverManager.getConnection("jdbc:odbc:student","","");
 Statement stmt = con.createStatement();  
 ResultSet rs = stmt.executeQuery("Select * from data");  
   while(rs.next()){
       String name=rs.getString("name");

   buffer=buffer+"<option value='"+name+"'>"+name+"</option>";  
   }  
 buffer=buffer+"</select>";  
 response.getWriter().println(buffer);
 System.out.println(buffer);
 }
 catch(Exception e){
System.out.println(e);
 }

 %>

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