TDBDateEdit.EditKeyPress procedure

Member of TDBDateEditprotectedIn unit DBExtCtrls

Ensures character values are valid for the control.

Declaration

pascal

procedure EditKeyPress(var Key: char); override

Arguments

Key

Character value for the key.

Description

EditKeyPress is an overridden procedure which processes the character value in Key. EditKeyPress calls the inherited method. EditKeyPress checks the value in Key to see if it contains data (as opposed to control characters) in the range Decimal 32 to Decimal 255. The Field property in DataLink also calls its IsValidChar method to see if Key is valid for the data type in the Field.

EditKeyPress requires DataLink to have both a valid TField instance in its Field property and its Edit property set to True. The value in Key is set to #0 (Decimal 0) if either condition is not met.

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.