FieldCheck (NetPhantom® 8.0 Java API Specification)

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All Known Implementing Classes:
CListBox, CMLE
```
public interface FieldCheck
```
A PControl extended class implements the FieldCheck interface if it requires to do special processing of the Tab/Backtab keys as well as the arrow keys when focus is about to be lost for the component in question.
This interface allows a component to reject the focus change.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`boolean`	`isDeFocusAllowed(KeyEvent event, PControl focusTarget)` Checks if this control allows a defocus operation at this time.

- Method Detail
  - isDeFocusAllowed
```
boolean isDeFocusAllowed(KeyEvent event,
                         PControl focusTarget)
```
    Checks if this control allows a defocus operation at this time.
    Parameters:
    event - The key event causing the focus change. This parameter may be null if no special key event caused the focus change.
    focusTarget - The target focus control.
    Returns:
    true If defocusing the control is allowed.
    false If focus shouldn't be changed.

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