JSF 2 validateDoubleRange example
“f:validateDoubleRange” is a JSF range validator tag, which is used to validate the range of a floating point value. For example,
<h:inputText id="salary" value="#{user.salary}">
<f:validateDoubleRange minimum="10.11" maximum="10000.11" />
</h:inputText>
When this form is submitted, the validator will make sure the “salary” value is within the range from “10.11” to “10000.11”.
“f:validateDoubleRange” example
A JSF 2.0 example to show the use of “f:validateDoubleRange” tag to validate the range of a “salary” input field, when the validator failed, display the error message via “h:message” tag.
1. Managed Bean
An user managed bean, with a “salary” property.
package com.mkyong;
import java.io.Serializable;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
@ManagedBean(name="user")
@SessionScoped
public class UserBean implements Serializable{
double salary;
public double getSalary() {
return salary;
}
public void setSalary(double salary) {
this.salary = salary;
}
}
2. JSF Page
JSF XHTML page, show the use of “f:validateDoubleRange” tag to make sure the “salary” input value is within the range from “10.11” to “10000.11”.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
>
<h:body>
<h1>JSF 2 validateDoubleRange example</h1>
<h:form>
<h:panelGrid columns="3">
Enter your salary :
<h:inputText id="salary" value="#{user.salary}"
size="10" required="true"
label="Salary" >
<f:validateDoubleRange minimum="10.11" maximum="10000.11" />
</h:inputText>
<h:message for="salary" style="color:red" />
</h:panelGrid>
<h:commandButton value="Submit" action="result" />
</h:form>
</h:body>
</html>
3. Demo
Minimum range validation failed.
Download Source Code
Download It – JSF-2-ValidateDoubleRange-Example.zip (9KB)
Hi Mkyong,
I have a validation problem in my project i need to put two decimal after point(.)
I am not able to get solution for this problem using can help in this
regards,