This display element is used to display a text string on the screen
and/or get a text string entered by the user (compare with
Number Input Field
and Date Input Field).
Note that this display element should be used only when the user
is allowed to change the displayed text interactively.
If the user should not be able to edit the displayed text ("read only" mode), use
If the user should choose a value from a list of possible values
(a drop-down list), use Chooser.
Note further the distinction between this element and
Text Input Field should be used for relatively short text strings
(e.g. a person's name), while Text Area is a better fit for longer texts
(e.g. some free text description of the person).
<Value> (non-repetitive text element): The displayed/entered text string.
Access it (to set its initial value or to retrieve the text string that has been
entered by the user) through a reference to the parent Text Input Field element
or to a higher level display element containing it.
You may add an action sub-model named
<On Change> to model what should be done when the user enters
a new text string. If you don't, nothing is done until another user action
causes some action to be performed (e.g. pressing a
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