TextBox.AfterUpdate event (Access)
The AfterUpdate event occurs after changed data in a control or record is updated.
expression A variable that represents a TextBox object.
Changing data in a control by using Visual Basic or a macro containing the SetValue action doesn't trigger these events for the control. However, if you then move to another record or save the record, the form's AfterUpdate event does occur.
To run a macro or event procedure when this event occurs, set the AfterUpdate property to the name of the macro or to [Event Procedure].
The AfterUpdate event is triggered when a control or record is updated. Within a record, changed data in each control is updated when the control loses the focus or when the user presses Enter or Tab.
When you enter new or changed data in a control on a form and then move to another record, or save the record by clicking Save Record on the Records menu, the AfterUpdate event for the form occurs immediately after the AfterUpdate event for the control.
When you move to a different record, the Exit and LostFocus events for the control occur, followed by the Current event for the record you moved to, and the Enter and GotFocus events for the first control in this record. To run the AfterUpdate macro or event procedure without running the Exit and LostFocus macros or event procedures, save the record by using the Save Record command on the Records menu.
AfterUpdate macros and event procedures run only if you change the data in a control. This event does not occur when a value changes in a calculated control. AfterUpdate macros and event procedures for a form run only if you change the data in one or more controls in the record.
For bound controls, the OldValue property isn't set to the updated value until after the AfterUpdate event for the form occurs. Even if the user enters a new value in the control, the OldValue property setting isn't changed until the data is saved (the record is updated). If you cancel an update, the value of the OldValue property replaces the existing value in the control.
To perform simple validations, or more complex validations such as requiring a value in a field or validating more than one control on a form, you can use the ValidationRule property for controls and the ValidationRule and Required properties for fields and records in tables.
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