TFloatField¶

Class for floating point values.

Declaration¶

Source position: db.pas line 753

type

  TFloatField = class(TNumericField)
  public
    constructor Create;
    function CheckRange : Boolean;
    property Value: Double; {rw}
  published
    property Currency: Boolean; {rwd}
    property MaxValue: Double; {rw}
    property MinValue: Double; {rw}
    property Precision: LongInt; {rwd}
  end;

Inheritance¶

Description¶

TFloatField is the class created when a dataset must manage floating point values of double precision. It exposes a few new properties such as Currency, MaxValue, MinValue and overrides some TField methods to work with floating point data.

It should never be necessary to create an instance of TFloatField manually, a field of this class will be instantiated automatically for each floating-point field when a dataset is opened.

Properties¶

Member	Visibility	Description
Currency	published	Is the field a currency field.
MaxValue	published	Maximum value for the field.
MinValue	published	Minimum value for the field.
Precision	published	Precision (number of digits) of the field in text representations.
Value	public	Value of the field as a double type.

See all Properties

Methods¶

Member	Visibility	Description
CheckRange	public	Check whether a value is in the allowed range of values for the field.
Create	public	Create a new instance of the TFloatField.

See all Methods