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validation of a text box input... [message #180777]

Mon, 18 March 2013 15:46

Nagaraju Kachapuram
Messages: 14
Registered: February 2013

Karma:

Junior Member

Hi,

I have created a text box to take input to open another form. If the text box is not given any value and press enter it is activating the linked form with empty values. How to validate the text box not accept the null value. I tried with isset() function but i dont know how to apply it. The following is some part of my text box code .

<form name="myform" action="nextform.php?id=<?php echo $id; ?>" method="GET">
<li><a ><b>ID Code:</b><br/><input type="text" color:'red' style="width:10em" maxlength=9 name=id onfocus="if (this.value == 'Enter ID Code') {this.value = '';}"></a>
<?php echo $id ?>

</li>
<li>
<input type="submit" value="submit" style="margin-left:4.5em;color:#be1400;">
</li>

Where is the error?

Thank you.

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[Message index]

		validation of a text box input... By: Nagaraju Kachapuram on Mon, 18 March 2013 15:46
		Re: validation of a text box input... By: Salvatore on Mon, 18 March 2013 18:19
		Re: validation of a text box input... By: Nagaraju Kachapuram on Mon, 18 March 2013 23:54
		Re: validation of a text box input... By: Salvatore on Tue, 19 March 2013 16:13
		Re: validation of a text box input... By: J.O. Aho on Mon, 18 March 2013 19:28

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