Hi.. guys
I’m trying to use JavaScript to validate my HTML for empty fields. My code is as below. The problem is that I can escape validation and submit empty fields.
Any clue? - <html>
-
<head>
-
<script language="JavaScript">
-
function isEmpty(inputStr,fieldname){
-
if (inputStr==null || inputStr==""){
-
alert("please fill in the box")
-
document.form1.fieldname.focus();
-
document.form1.fieldname.select();
-
return false;
-
} else {
-
return true;
-
}
-
-
}
-
</script> </head>
-
<body>
-
<form name="form1" method="GET" action=”?????????”>
-
<p> User ID:
-
<input type="text" name="txt1" onBlur="isEmpty(txt1.value,txt1.name)"/>
-
<br />
-
<p> User Name:
-
<input type="text" name="txt2" onBlur="isEmpty(txt2.value,txt2.name)"/>
-
<br /> <br />
-
<input type="submit" VALUE="SUBMIT" />
-
</form> </body> </html>
-
13  2620 
Hi.. guys
I’m trying to use JavaScript to validate my HTML for empty fields. My code is as below. The problem is that I can escape validation and submit empty fields.
Any clue?
<html>
<head>
<script language="JavaS cript">
function isEmpty(inputSt r,fieldname){
if (inputStr==null || inputStr==""){
alert("please fill in the box")
document.form1. fieldname.focus ();
document.form1. fieldname.selec t();
return false;
} else {
return true;
}
}
</script> </head>
<body>
<form name="form1" method="GET" action=”??????? ??”>
<p> User ID:
<input type="text" name="txt1" onBlur="isEmpty (txt1.value,txt 1.name)"/>
<br />
<p> User Name:
<input type="text" name="txt2" onBlur="isEmpty (txt2.value,txt 2.name)"/>
<br /> <br />
<input type="submit" VALUE="SUBMIT" />
</form> </body> </html>
You had given wrong
path in action=”??????? ??”
use like this action="".
Akhilesh
Thanx
The problem is not because of the action attribute, you may eliminate it. The issue is how to prevent of submission empty fields. (got it?)
Cheers
You had given wrong
path in action=”??????? ??”
use like this action="".
Akhilesh
acoder 16,027
Recognized Expert Moderator MVP
Instead of passing the name, pass the object itself, e.g. txt1. Then in your function, in place of - document.form1.fieldname.focus()
you can have
because fieldname is the text box object.
thanx acoder
but still doesn't work properly.I mean, i still able to submit empty fields.
plz help
Instead of passing the name, pass the object itself, e.g. txt1. Then in your function, in place of - document.form1.fieldname.focus()
you can have
because fieldname is the text box object.
iam_clint 1,208
Recognized Expert Top Contributor
[HTML]
<html>
<head>
<script language="JavaS cript">
function isEmpty(inputSt r,fieldname){
if (inputStr==null || inputStr==""){
alert("please fill in the box")
document.form1. fieldname.focus ();
document.form1. fieldname.selec t();
return false;
} else {
return true;
}
}
function validate() {
//check for blank input boxes here
//possibly alert("hey you didn't fill in everything"); and return false; if there is blank boxes (stops the submission);
//else return true
}
</script> </head>
<body>
<form name="form1" method="GET" onsubmit="valid ate();" action=”??????? ??”>
<p> User ID:
<input type="text" name="txt1" onBlur="isEmpty (txt1.value,txt 1.name)"/>
<br />
<p> User Name:
<input type="text" name="txt2" onBlur="isEmpty (txt2.value,txt 2.name)"/>
<br /> <br />
<input type="submit" VALUE="SUBMIT" />
</form> </body> </html>
[/HTML]
Changed title of thread to more suit the question being asked
Hi.. guys
I’m trying to use JavaScript to validate my HTML for empty fields. My code is as below. The problem is that I can escape validation and submit empty fields.
Any clue?
<html>
<head>
<script language="JavaS cript">
function isEmpty(inputSt r,fieldname){
if (inputStr==null || inputStr==""){
alert("please fill in the box")
document.form1. fieldname.focus ();
document.form1. fieldname.selec t();
return false;
} else {
return true;
}
}
</script> </head>
<body>
<form name="form1" method="GET" action=”??????? ??”>
<p> User ID:
<input type="text" name="txt1" onBlur="isEmpty (txt1.value,txt 1.name)"/>
<br />
<p> User Name:
<input type="text" name="txt2" onBlur="isEmpty (txt2.value,txt 2.name)"/>
<br /> <br />
<input type="submit" VALUE="SUBMIT" />
</form> </body> </html>
you are doing validation on onBlur event of textbox,
If you want to validate on onSubmit event of form then
you need to do like this.
<form name="form1" method="GET" action=”??????? ??” onSubmit="valid ate()" >
and then make a validate() function in javascript.
you are doing validation on onBlur event of textbox,
If you want to validate on onSubmit event of form then
you need to do like this.
<form name="form1" method="GET" action=”??????? ??” onSubmit="valid ate()" >
and then make a validate() function in javascript.
-
<form name="form1" method="GET" action=”?????????” onSubmit="return validate()" >
how about parameters?
cheers -
<form name="form1" method="GET" action=”?????????” onSubmit="return validate()" >
acoder 16,027
Recognized Expert Moderator MVP Sign in to post your reply or Sign up for a free account.
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