Allgemeine Verständnisfrage (Feld durchsuchen)

[Alter Mann]

Hallo,

es ist vollbracht und der Aufwand war 'nicht' so hoch:

Delphi-Quellcode:

  TDBCalendarControl = class(TCalendarControl)
  private
    FDataLink   : TFieldDataLink;
    FMaxRecords : Integer;
    procedure DataChange(Sender: TObject);
  ...
  protected
    procedure LoadDatesForMonth;
  ...

procedure   TDBCalendarControl.DataChange(Sender: TObject);
begin
  if (FDataLink.Field <> nil) and not FDataLink.DataSourceFixed then
  begin
    if FMaxRecords <> FDataLink.DataSet.RecordCount - 1 then
    begin
      FMaxRecords := FDataLink.DataSet.RecordCount - 1;
      FDataLink.DataSourceFixed := True;
      LoadDatesForMonth;
    end;
  end;
end;

procedure   TDBCalendarControl.LoadDatesForMonth;
var
  I : Integer;
  DT : TDateTime;
  Y1, Y2, M1, M2, D1, D2 : Word;
begin
  FDataLink.DataSet.First;
  for I := 0 to FDataLink.DataSet.RecordCount - 1 do
  begin
    if IsDateTimeField then
      DT := Trunc(FDataLink.Field.AsDateTime)
    else
      DT := Trunc(FDataLink.Field.AsDateTime);

    DecodeDate(DT, Y1, M1, D1);
    DecodeDate(FDate, Y2, M2, D2);
    if (Y1 = Y2) and (M1 = M2) then FDates[D1] := DT;
    FDataLink.DataSet.Next;
  end;
  Invalidate;
  FDataLink.DataSourceFixed := False;
end;

Nochmals Danke.


Gruss

Alter Mann