TCustomDBGrid.IsValidChar function

Member of TCustomDBGridprotectedIn unit DBGrids

IsValidChar indicates if the specified Field contains the specified UTF-8 character.

Declaration

pascal

function IsValidChar(AField: TField; AChar: TUTF8Char): Boolean

Description

IsValidChar is a Boolean function that indicates if the Field specified in AField contains the UTF-8 encoded character in AChar. No action is required (or performed) when AChar contains a single byte character.

Please note that TField does not contain a method which verifies a Unicode character. This routine converts a multi-byte Unicode character using UTF8ToSys and calls the TField.IsValidChar method to validate.

IsValidChar returns True when TField.IsValidChar returns the same or when AChar contains the BackSpace (Decimal 8) character.

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