资 源 简 介
NumberField Vaadin add-on
What it is
NumberField provides a numeric text field with automatic keystroke filtering and validation for integer (123) and decimal numbers (12.3). The minus sign and user-definable grouping and decimal separators are supported.
Inputs are validated on client- and server-side. The client-side validator gets active on every keypress in the field. If the keypress would lead to an invalid value, it is suppressed and the value remains unchanged. The server-side validation is triggered when the field loses focus.
An user-entered value is formatted automatically when the field"s focus is lost. NumberField uses DecimalFormat for formatting and send the formatted value of the input back to client. There"s a number of setters to define the format, see the code example below for a general view.
