, . , , , . , , , .
Delphi . TFieid, , . , , .
, , .
, , TField. , , .
?
-, TField, , . , , , . .
-, ( , ).
4
. , TDBCrid .
TField (. .), . . TField , . TField - , .
- , , TField, .
TField.
property Name: TComponentName;
.
property FieldName: String;
.
property Origin: String;
|
|
property FieldNo: Integer;
.
property DataType: TFieldType;
,
property DataSize: Integer;
, .
TFieid . , .
property Value: Variant
, Post :
value . AS..., . AsString, , :
Editl.Text:= Tablel.Fields[0].AsString;
AS..., . . Value Variant.
AS, , , .
property AsString: String;
property AsInteger: Integer;
property AsDateTime: TDateTime;
property AsBoolean: Boolean;
property AsCurrency:Currency;
property AsFloat: Double;
property CanModify: Boolean;
False, . .
property Readonly: Boolean;
(Readonly:= True) (Readonly:= False).