Primefaces Inplace

Primefaces Inplace is a component of the Primefaces UI library that allows for in-line editing of text elements on a web page without having to navigate to a separate form or modal window. It is a convenient and intuitive way to allow users to quickly edit text fields right where they see them without the extra step of navigating to a separate editing page.

Features

• Allows for in-line editing of text fields
• Can be used with various data types including text, numbers and dates
• Supports validation and conversion of edited data
• Provides callback functions for before and after editing events
• Can be customized with icon buttons and CSS styles

Usage

To use Primefaces Inplace, simply include the relevant Primefaces library files, as well as the necessary CSS files for your specific use case, and add the component to your web page.

The basic syntax for using the component is as follows:

<p:inplace id="inplaceField" value="#{bean.fieldValue}" editor="true"></p:inplace>

This will create an inplace component with an ID of "inplaceField" that will display the current value of bean.fieldValue and allow for editing.

By default, the inplace component will show an "Edit" button that, when clicked, will switch to edit mode and allow the user to make changes. Once editing is complete, the "Save" button must be clicked to save the changes, or the "Cancel" button can be selected to discard the changes.

Callback Functions

Primefaces Inplace provides several callback functions that can be used to handle before and after editing events.

The onBeforeEdit function is called just before the inplace component switches to edit mode. It can be used to perform any necessary validation or custom logic before editing begins.

<p:inplace onBeforeEdit="handleBeforeEdit()" ...></p:inplace>

The onCancel function is called when the "Cancel" button is clicked and the user discards any changes made during editing.

<p:inplace onCancel="handleCancel()" ...></p:inplace>

The onCompleteEdit function is called when editing is complete and the "Save" button is clicked. It can be used to perform any necessary validation or custom logic after editing is complete.

<p:inplace onCompleteEdit="handleCompleteEdit()" ...></p:inplace>

Conclusion

Primefaces Inplace is a useful and convenient component for adding in-line editing functionality to web pages. It is highly customizable and supports various data types while also providing built-in validation and conversion. The use of callback functions allows for further customization and integration with existing code.