1. We have moved from vBulletin to XenForo and you are viewing the site in the middle of the move. Though the functional aspect of everything is working fine, we are still working on other changes including the new design on Xenforo.
    Dismiss Notice

JSP form with checks

Discussion in 'JSP' started by brianmadden, Sep 20, 2012.

  1. brianmadden

    brianmadden New Member

    Hello, I am trying to create a jsp form with 4 options the user can only select 2 of the four options and are blocked from selecting more and given a prompt if they try to. I am not sure how to create a check to see how many checkboxes they have used, I think I should be using an array and a loop but I am struggling to find a solution

    <form ACTION="page2.jsp">
    Opt 1 <input type="checkbox" name="id" value="check1 +"> 
    Opt  2 <input type="checkbox" name="id" value="check2 +"> 
    Opt  3 <input type="checkbox" name="id" value="check3 +"> 
    Opt  4 <input type="checkbox" name="id" value="check4 +"> 
    <input type="submit" value="Submit">
    They are then brought to another page that thanks them for choosing those options which I have stored in array.

      <p><b> Thank you <u><%= session.getAttribute( "username" ) %> </u>for registering </b></p>
                      <%String[] selections = request.getParameterValues("id");
                        if (selections != null && selections.length != 0) {
                     out.println("You have selected: ");
                    for (int i = 0; i < selections.length; i++) {
  2. brianmadden

    brianmadden New Member

    I have been searching for a few check box solutions, and think I need to write an method that runs when the user presses the submit button

      <script type="text/javascript">
    function validate(form) {
    var total=""
    for(var i=0; i < 2; i++){
    total +=document.form1.id[i].value + "\n"
    alert("Please select an option")
    alert ("The options you have selected are: "+"\n"+total)
    return false;
    } </script>

Share This Page