Onchange Event in Dropdown

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  • chandhseke
    New Member
    • Jun 2009
    • 92
    #1

    Onchange Event in Dropdown

    Hi Friends,
    I have a problem with OnChange event, Please help me out in coding the below requirement.
    I have a drop down box with 3 items: India,United States,South Africa. If I select India(for India alone) a pop up window should come up with some text/question("Are you an Indian Citizen?"), Yes/No should be the only options. If the user clicks on Yes, some value should be saved in a variable which i need to save it in my database so as to maintain a record that a question was asked and answered.

    Please help me out. Thanks inadvance.

    Regards,
    Tags: None
    • Dormilich
      Recognized Expert Expert
      • Aug 2008
      • 8694
      #2
      you could use window.confirm( )?

        Comment

        • chandhseke
          New Member
          • Jun 2009
          • 92
          #3
          Thanks for the reply.
          if the user clicks OK, i want to store some value in a variable and call it in a text box.. How can achieve this?

            Comment

            • chandhseke
              New Member
              • Jun 2009
              • 92
              #4
              Code:
              <html>
<head>
<script language="javascript">
function ConSub()
  {
   var result;
   var w = document.frm.Country.selectedIndex;
   var selected_text = document.frm.Country.options[w].text;
     if (selected_text == "South Africa")
        'result=window.confirm("Do you have a Emp certificate?");
                 if (result== true)
              // i want to store some value sayYES in a variable and call this variable in a text box//
else 
return false;
}
<form name="frm">
<select name="Country" onchange="return ConSub()">
<option value="India">India
<option value="South Africa">South Africa
</select>
</form>
</body>
</html>
              Please edit/comment on how can i track that user has clicked OK or cancel.i want store this in a variable.
              Last edited by Dormilich; Jun 11 '09, 12:10 PM. Reason: Please use [code] tags when posting code

                Comment

                • waqasahmed996
                  New Member
                  • Jun 2008
                  • 160
                  #5
                  this code may be helpfull for you
                  Code:
                  <script language="javascript">
function country (value)
{
if(window.confirm("Are You "+value+" citizan"))
     {
	 country = value;
	  return true;
     }
else
      return false;
}
</script>

<select name="country" id="country" onchange="return country(this.value)">
<option value="0">Select Country</option>
<option value="India">India</option>
<option value="United States">United States</option>
<option value="South Africa">South Africa</option>
</select>
                  i need to know how can value of country can be assign to a php variable so that it can be used for insertion in database

                    Comment

                    • Dormilich
                      Recognized Expert Expert
                      • Aug 2008
                      • 8694
                      #6
                      Originally posted by waqasahmed996
                      i need to know how can value of country can be assign to a php variable so that it can be used for insertion in database
                      1. submit the form
                      2. submit an AJAX request

                        Comment

                        • chandhseke
                          New Member
                          • Jun 2009
                          • 92
                          #7
                          Thanks again..
                          The above code will make a cofirm box pop up for every item in the drop down, but i require this function to get fired only when INDIA is selected frm the list.
                          Not for all the items in the drop down.

                            Comment

                            • waqasahmed996
                              New Member
                              • Jun 2008
                              • 160
                              #8
                              any other way like
                              Code:
                               if(window.confirm("Are You "+value+" citizan"))
      {
    <?php
    $country = echo '<script type="text/JavaScript"> echo value; </script>'; 
    ?>      

       return true;
      }

                                Comment

                                • chandhseke
                                  New Member
                                  • Jun 2009
                                  • 92
                                  #9
                                  I am using ASP pages and javascript, not asp.net or php coding.

                                    Comment

                                    • Dormilich
                                      Recognized Expert Expert
                                      • Aug 2008
                                      • 8694
                                      #10
                                      that doesn't change the general idea, only the syntax.

                                        Comment

                                        • chandhseke
                                          New Member
                                          • Jun 2009
                                          • 92
                                          #11
                                          I agree... According my script,
                                          var w = document.frm.Co untry.selectedI ndex;
                                          var selected_text = document.frm.Co untry.options[w].text;
                                          Variable "selected_t ext" contian the current item selected from the drop down, now i will check a condition (if selected_text== "India"), if yes a confirm box will popup.
                                          now if the user clicks OK/CANCEL, i need to store a true/false value in a varialbe and then assign it to asp variable or a text box. How can i do this

                                            Comment

                                            • waqasahmed996
                                              New Member
                                              • Jun 2008
                                              • 160
                                              #12
                                              Dormilich please can you tell me correct syntax. my above code is not executed correctly

                                                Comment

                                                • Dormilich
                                                  Recognized Expert Expert
                                                  • Aug 2008
                                                  • 8694
                                                  #13
                                                  I know neither ASP nor ASP.NET

                                                    Comment

                                                    • waqasahmed996
                                                      New Member
                                                      • Jun 2008
                                                      • 160
                                                      #14
                                                      no i am asking about php and javascript. what is mistake in my following code. where variable 'value' is javascript variable
                                                      Code:
                                                      <?php
 $country = echo '<script type="text/JavaScript"> echo value; </script>'; 
 ?>

                                                        Comment

                                                        • chandhseke
                                                          New Member
                                                          • Jun 2009
                                                          • 92
                                                          #15
                                                          Your code executed correctly but the confirm box is popped up for each item clicked in the drop down.. I need this to happen only when i click India not for all... I have no idea how to assign a Javascript variable to a html/asp text box.

                                                            Comment

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