FormInputElement.readOnly

Method of FormInputElement

New in package 162

Syntax

element.readOnly = true | false

Description

If true, user cannot modify content of the control.

  • Setting the property to true always succeeds.
  • If there is no object in the form or if the window doesn't allow any editing (e.g. History Window), then:
    • Property value is always true.
    • Setting the property to false has no effect (no exceptions are thrown and value remains false).
  • If there is an object in the form and the window allows editing then:
    • Property value is determined by design-time Editability property of the control.
    • Setting the property to false succeeds only if Editability property of the control allows editing in the current Form.mode, otherwise an exception is thrown.

Example

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