Struts and Javascript

You can always call some javascript functions before you submit.

  For example:

  <script>
    function myFunction(){
     //do your validation here
     if (yourValidationFunction()){
       document.yourForm.action="nextpage.do";
       document.submit();
     } else{
       alert("wrong input");
     }
    }
  </script>

 
  <input type="button" onClick="myfunction()">

 

But there is a Struts Validator for this. I used it a while ago and it works perfectly.

There are already some basic validators available. The mask can be very usefull. But you can also add your own (Javascript) to the validator-rules.xml.

For more information about this see http://jakarta.apache.org/struts/userGuide/dev_validator.html. On the bottom of this page you can see a ref to http://www.manning-source.com/books/husted/husted_ch12.pdf. Look for client side validation.

Greetz,
Didier

Should be

document.yourForm.submit();

Hi Didier!

I tried out what you said but I run into some problems with javascript. It seems that when my code goes to my javascript, it only reads the first line of code:

ex:

my function {
    alert("Hello");
    alert("Test");
}

what will be returned to me is just the alert "Hello", the next alert will not be shown anymore. Below is my actual jsp code to do this (I forgot that I will be opening a new popup for this one):

 <html:image src="/ADM/images/edit_button.gif" border="0" onclick="return false"/>

<script language="javascript"><!--begin
   
    function getConfigItemKey()
    {  

        var count = parent.configItemsListForm.counter.value;
        var newWindow;
        alert(count);

        if (count.value == 1) {
            if (newWindow) {
                newWindow.close();
                newWindow = null;
            }
           
            var test = 1;
            window.open('/ADM/SetupEditConfigItem.do?
                                    configItemKey=test','confirm','width=400,height=150');
           
        }
       
        if (count.value == 0) {
            alert("Please select a config item to edit/view");
        }
       
        if (count.value > 1) {
            alert("Please select only one config item to edit/view");
        }
    }

\\ end-->
</script>

Thanks!