Ajax drop down and textbox

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venkatgopi

Ajax drop down and textbox
3 Answer(s) 9 months ago
Posted in : Ajax

hie frnds I have a dropdown menu in the 3 options(1,2,3) are there if i choose 1 then I should get 1 text box if i select 2 the 2 textboxes should come can any one help me in this problem Thanx in advance............

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August 24, 2012 at 11:39 AM

Here is an ajax example which is having a drodown menu consisting of options 1,2,3. When the user select any option from the dropdown box, the corresponding number of textboxes will get displayed on the browser.

 <html>
      <head>  
      <script language="javascript" type="text/javascript">  
      var xmlHttp  
      var xmlHttp
      function showState(str){
      xmlHttp=GetXmlHttpObject();
      if (xmlHttp==null){
         alert ("Browser does not support HTTP Request")
         return
         }
         if(str=="1"){
          document.getElementById("text1").style.visibility="visible";
         document.getElementById("text2").style.visibility="hidden";
         document.getElementById("text3").style.visibility="hidden";
         }
         else if(str=="2"){
         document.getElementById("text1").style.visibility="visible";
         document.getElementById("text2").style.visibility="visible";
          document.getElementById("text3").style.visibility="hidden";

         }
         else if(str=="3"){
         document.getElementById("text1").style.visibility="visible";
         document.getElementById("text2").style.visibility="visible";
         document.getElementById("text3").style.visibility="visible";
         }
      }

        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>  
      <select name='country' onchange="showState(this.value)">  
        <option value="none">Select</option>  
        <option value="1">1</option> 
        <option value="2">2</option> 
        <option value="3">3</option> 
      </select>  
      <br>  
      <div id='div'>  
      <input type='text' name='text1' id='text1' style="visibility:hidden;"><br>
      <input type='text' name='text2' id='text2' style="visibility:hidden;"><br>
      <input type='text' name='text3' id='text3' style="visibility:hidden;"><br>

     </div>  
      </body> 
  </html>

August 24, 2012 at 11:55 AM

THank u very much i have sucesfully executed it......

August 24, 2012 at 12:03 PM

And one more thing how to insert to the database dynamically .......

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