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# Enum Field.EventType

Event types for field.

###### Namespace: pdftron.PDF

###### Assembly: PDFTronDotNet.dll

##### Syntax

    public enum Field.EventType

### Fields

Name | Description
--- | ---
e_action_trigger_calculate | Triggered when field is recalculated due to a change in another field.
e_action_trigger_format | Triggered before a field value is displayed.
e_action_trigger_keystroke | Triggered when user modifies text, or selection, in a text, combo or list field.
e_action_trigger_validate | Triggered when a field value is changed.