Widget for number input. It is a template class that assumes that T is a number. More...

#include <cppcms/form.h>

Inheritance diagram for cppcms::widgets::numeric< T >:

Public Member Functions
void	non_empty ()
T	value ()
void	value (T v)
void	low (T a)
void	high (T b)
void	range (T a, T b)
virtual void	render_value (form_context &context)
virtual void	clear ()
virtual void	load (http::context &context)
virtual bool	validate ()

Detailed Description

template<typename T>
class cppcms::widgets::numeric< T >

Widget for number input. It is a template class that assumes that T is a number.

This class parses the input and checks if it is input text is a valid numeric value. If it is valid, the set() would return true be true.

If the value was not defined, access to value() will throw an exception.

Member Function Documentation

template<typename T >

virtual void cppcms::widgets::numeric< T >::clear ( ) [inline, virtual]

Clear the form. It also calls set(false).

Reimplemented from cppcms::widgets::base_widget.

template<typename T >

void cppcms::widgets::numeric< T >::high ( T b ) [inline]

Set the maximum valid value.

template<typename T >

virtual void cppcms::widgets::numeric< T >::load ( http::context & context ) [inline, virtual]

Load the widget data.

template<typename T >

void cppcms::widgets::numeric< T >::low ( T a ) [inline]

Set the minimum valid value.

template<typename T >

void cppcms::widgets::numeric< T >::non_empty ( ) [inline]

Inform the validator that this widget should contain some value.

template<typename T >

void cppcms::widgets::numeric< T >::range	(	T	a,
		T	b
	)			`[inline]`

Same as low(a); high(b);

template<typename T >

virtual void cppcms::widgets::numeric< T >::render_value ( form_context & context ) [inline, virtual]

Render the first part of the widget.

Implements cppcms::widgets::base_html_input.

template<typename T >

virtual bool cppcms::widgets::numeric< T >::validate ( ) [inline, virtual]

Validate the widget.

Reimplemented from cppcms::widgets::base_widget.

template<typename T >

void cppcms::widgets::numeric< T >::value ( T v ) [inline]

Set the value of the widget.

template<typename T >

T cppcms::widgets::numeric< T >::value ( ) [inline]

Get numeric value that was loaded from the POST or GET data.

Note:: if the value was not set (empty field for example) then this function will throw. So it is good idea to check if set() returns true before using this function.

The documentation for this class was generated from the following file:

cppcms/form.h

cppcms::widgets::numeric< T > Class Template Reference

Public Member Functions

Detailed Description

template<typename T> class cppcms::widgets::numeric< T >

Member Function Documentation

template<typename T>
class cppcms::widgets::numeric< T >