|
|
| Tomahawk Tags |
|
The output below is the result of bad
guessing of the number by the user.
7-Tomahawk validateCreditCard tag
This tag is used to validate a Credit Card
Number entered by the user. If we want the
user to enter a valid Credit Card Number
then validateCreditCard tag can do this
validation. If we don’t want to allow any of
the “American Express”,”Visa””mastercard” or “Discover” then we can set value false for the
attributes “ameex”,”visa””mastercard” and “discover” respectively. If we don’t want to
allow anyone then we can set value true for
the attribute “none”. If the entered value is
not a valid then we can display the message
of our interest by using “message” attribute.
Code Description:
<%@ taglib uri=”http://java.sun.com/jsf/
html” prefix=”h”%>
<%@ taglib uri=”http://java.sun.com/jsf/
core” prefix=”f”%>
<%@ taglib uri=”http://myfaces.apache.org/
tomahawk” prefix=”t”%>
<f:view>
<html>
<head>
<meta http-equiv=”Content-Type”
content=”text/html; charset=iso-8859-1">
<title>t:validateCreditCard example</title>
<style type=”text/css”>
<!—
body{
background-color:#fff2f2;
|
|
margin-top:30;
}
—>
</style>
</head>
<body >
<h:form>
<t:outputText value=”Credit Card Number:”/>
<h:inputText id=”creditCardNumber”
required=”true”>
<t:validateCreditCard message=”Invalid Credit
Card number.”/>
</h:inputText>
<t:message for=”creditCardNumber”/></p>
<t:commandButton id=”cb” image=”images/
submit_button.gif” action=”welcome”/>
</h:form>
</body>
</html>
</f:view>
Rendered Output:
This is the output of the above code:
If the number entered by the user is not valid
then error message is displayed like below:
|
|
Oct 2007 | Java Jazz Up | 40 |
| |
|
| |
Pages:
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12,
13,
14,
15,
16,
17,
18,
19,
20,
21,
22,
23,
24,
25,
26,
27,
28,
29,
30,
31,
32,
33,
34,
35,
36,
37,
38,
39,
40,
41,
42,
43,
44,
45,
46,
47,
48,
49,
50,
51,
52,
53 ,
54,
55,
56,
57,
58,
59,
60,
61,
62,
63 ,
64,
65 ,
66 ,
67 ,
68 ,
69 ,
70,
71,
72,
73,
74,
75,
76,
77,
78,
Download PDF |
|
|
|
|
|
|
| |
| |
|
