Html With Javascript Form Validation And Jquery Mobile

Question

In a HTML form I am using JavaScript Form validation to avoid empty fields. This is the code for the form:

Solution 1:

Working example: http://jsfiddle.net/Gajotres/vds2U/50/

HTML:

<!DOCTYPE html><html><head><title>jQM Complex Demo</title><metahttp-equiv='Content-Type'content='text/html; charset=utf-8'/><metaname="viewport"content="width=device-width; initial-scale=1.0; maximum-scale=1.0; minimum-scale=1.0; user-scalable=no; target-densityDpi=device-dpi"/><linkhref="http://code.jquery.com/mobile/1.4.2/jquery.mobile-1.4.2.min.css" /><!--<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>--><scriptsrc="http://code.jquery.com/mobile/1.4.2/jquery.mobile-1.4.2.min.js"></script></head><body><divdata-role="page"id="index"data-theme="a" ><divdata-role="header"><h3>
                    First Page
                </h3><ahref="#second"class="ui-btn-right">Next</a></div><divdata-role="content"><formmethod="post"id="form1"name="form1"action=""data-ajax="false"><tablealign="center"><trvalign="baseline"><tdnowrapalign="right">Nickname:</td><td><inputtype="text"name="nickname"value=""size="32"/></td></tr><trvalign="baseline"><tdnowrapalign="right">Email:</td><td><inputtype="text"name="email"value=""size="32"/></td></tr><trvalign="baseline"><tdnowrapalign="right">Password:</td><td><inputtype="text"name="password"value=""size="32"/></td></tr><trvalign="baseline"><tdnowrapalign="right">&nbsp;</td><td><inputtype="submit"value="Insert record"/></td></tr></table><inputtype="hidden"name="estado"value="0"/><inputtype="hidden"name="MM_insert"value="form1"/></form></div><divdata-role="footer"data-position="fixed"></div></div><divdata-role="page"id="second"data-theme="a" ><divdata-role="header"><h3>
                    Second Page
                </h3><ahref="#index"class="ui-btn-left">Back</a></div><divdata-role="content"></div><divdata-role="footer"data-position="fixed"></div></div></body></html>

JavaScript:

$(document).on('submit', '#form1', function(){ 
    var x=document.forms["form1"]["nickname"].value;
    if (x==null || x=="") {
        alert("First name must be filled out");
        returnfalse;
    } else {
        returntrue;    
    }
});

Changes:

jQuery Mobile has its own way of form handling, you need to disable it if you want to have classic form handling. It is done via attribute data-ajax="false".
Never use inline javascript with jQuery Mobile, I mean NEVER.

Solution 2:

For me this is working fine :

<script>functionvalidateForm()
        {
            var x=document.forms["form1"]["nickname"].value;
            if (x==null || x=="")
            {
                alert("First name must be filled out");
                returnfalse;
            }else{
                returntrue;
            }
        }
    </script>

Just added a else statement. It's working fine for me.

Solution 3:

I think your code should work. But If not you can make some changes as

Change 1 Remove Submit event from tag

Baca Juga

<formmethod="post"name="form1"action="<?phpecho$editFormAction; ?>">

Change 2.

Change submit button to default button and validate event here

<inputtype="button" onclick="javascript:validateForm();" value="Insert record">

Change 3. Now change in javascript Add code form sub

<script>functionvalidateForm()
        {
            var x=document.forms["form1"]["nickname"].value;
            if (x==null || x=="")
            {
                alert("First name must be filled out");

            }else{
                   document.forms["form1"].submit();
            }
        }
            </script>

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