How to validate a form
Dear Sir,I have a one jsp ,in that i have a 2 forms
///One form1 as follows
<form method="post" onsubmit="return IsEmpty(this);">
<center>
<table>
<tr>
<td><b>Id</b><input type="text" name="idvalue" value="<%=sessId %>" ></td>
<td><b>Subject</b><input type="text" name="subject" value="<%=sessSub %>"></td>
<td><b>Status</b><input type="text" name="statusvalue" value="<%=sessStat %>"></td>
<td><input type="submit" value="Search"></td>
</tr>
</table>
</center>
</form>
/// Another form2 is as follows
<form name="mesdetails" method="post" action="../mesdetails.do"><input
type="hidden" name="act" value="" />
<table class="ContentTable" border="4" bordercolor="#660066"
align="center" cellspacing="0" cellpadding="4.5" style="width: 770px"
id="results">
And soon ...
Now i want to validate a form1 i.e in form1 i have a text field for a Id values .If i submit a form without any Id values in a text field i have to get an aleert message so how to do this sir please help me..
Thanks and Regards
Harini Veerapur.
View Answers
June 22, 2010 at 11:12 AM
Hi Friend,
Try the following code:
<script>
function validate(){
var id=document.form1.idvalue.value;
if (id == ""){
alert("Please enter id.");
form1.idvalue.focus();
return false;
}
return true;
}
</script>
<form name="form1" method="post" action="enter.jsp" onsubmit="return validate();">
<table>
<tr><td>Id</td><td><input type="text" name="idvalue" ></td></tr>
<tr><td>Subject</td><td><input type="text" name="subject" ></td></tr>
<tr><td>Status</td><td><input type="text" name="statusvalue" ></td></tr>
<tr><td><input type="submit" value="Search"></td>
</tr>
</table>
</form>
<form name="mesdetails" method="post" action="../mesdetails.do"><input
type="hidden" name="act" value="" />
<table class="ContentTable" border="4" bordercolor="#660066"
align="center" cellspacing="0" cellpadding="4.5" style="width: 770px"
id="results">
</table>
</form>
Thanks
Try the following code:
<script>
function validate(){
var id=document.form1.idvalue.value;
if (id == ""){
alert("Please enter id.");
form1.idvalue.focus();
return false;
}
return true;
}
</script>
<form name="form1" method="post" action="enter.jsp" onsubmit="return validate();">
<table>
<tr><td>Id</td><td><input type="text" name="idvalue" ></td></tr>
<tr><td>Subject</td><td><input type="text" name="subject" ></td></tr>
<tr><td>Status</td><td><input type="text" name="statusvalue" ></td></tr>
<tr><td><input type="submit" value="Search"></td>
</tr>
</table>
</form>
<form name="mesdetails" method="post" action="../mesdetails.do"><input
type="hidden" name="act" value="" />
<table class="ContentTable" border="4" bordercolor="#660066"
align="center" cellspacing="0" cellpadding="4.5" style="width: 770px"
id="results">
</table>
</form>
Thanks
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