119 lines
3.0 KiB
Plaintext
119 lines
3.0 KiB
Plaintext
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unit fDateRange;
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interface
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uses
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Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
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fAutoSz, ORCtrls, StdCtrls, ORFn, ORDtTm;
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type
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TfrmDateRange = class(TfrmAutoSz)
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txtStart: TORDateBox;
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txtStop: TORDateBox;
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lblStart: TLabel;
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lblStop: TLabel;
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cmdOK: TButton;
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cmdCancel: TButton;
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lblInstruct: TOROffsetLabel;
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procedure cmdOKClick(Sender: TObject);
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procedure cmdCancelClick(Sender: TObject);
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procedure FormCreate(Sender: TObject);
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private
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OKPressed: Boolean;
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Flags: string;
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end;
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function ExecuteDateRange(var Start, Stop: string; const AFlag, ATitle, Instruct,
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StartLabel, StopLabel: string): Boolean;
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implementation
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{$R *.DFM}
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uses rCore;
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const
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TX_INVALID_DATE = 'The date/time entered could not be validated.';
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TC_INVALID_DATE = 'Unable to interpret date/time entry.';
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function ExecuteDateRange(var Start, Stop: string; const AFlag, ATitle, Instruct,
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StartLabel, StopLabel: string): Boolean;
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var
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frmDateRange: TfrmDateRange;
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begin
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Result := False;
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frmDateRange := TfrmDateRange.Create(Application);
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try
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ResizeFormToFont(TForm(frmDateRange));
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with frmDateRange do
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begin
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if Flags <> '' then Flags := AFlag;
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if ATitle <> '' then Caption := ATitle;
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if Instruct <> '' then lblInstruct.Caption := Instruct;
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if StartLabel <> '' then lblStart.Caption := StartLabel;
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if StopLabel <> '' then lblStop.Caption := StopLabel;
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txtStart.Text := Start;
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txtStop.Text := Stop;
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ShowModal;
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if OKPressed then
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begin
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Start := txtStart.Text;
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Stop := txtStop.Text;
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Result := True;
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end;
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end;
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finally
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frmDateRange.Release;
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end;
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end;
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procedure TfrmDateRange.FormCreate(Sender: TObject);
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begin
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inherited;
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OKPressed := False;
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end;
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procedure TfrmDateRange.cmdOKClick(Sender: TObject);
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const
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TX_BAD_START = 'The start date is not valid.';
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TX_BAD_STOP = 'The stop date is not valid.';
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TX_STOPSTART = 'The stop date must be after the start date.';
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var
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x, ErrMsg: string;
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begin
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inherited;
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ErrMsg := '';
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txtStart.Validate(x);
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if Length(x) > 0 then ErrMsg := ErrMsg + TX_BAD_START + CRLF;
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with txtStop do
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begin
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Validate(x);
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if Length(x) > 0 then ErrMsg := ErrMsg + TX_BAD_STOP + CRLF;
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if (Length(Text) > 0) and (FMDateTime <= txtStart.FMDateTime)
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then ErrMsg := ErrMsg + TX_STOPSTART;
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end;
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if Length(ErrMsg) > 0 then
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begin
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InfoBox(ErrMsg, TC_INVALID_DATE, MB_OK);
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Exit;
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end;
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// if ((Length(txtStart.Text) > 0) and (ValidDateTimeStr(txtStart.Text, Flags) < 0))
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// or ((Length(txtStop.Text) > 0) and (ValidDateTimeStr(txtStop.Text, Flags) < 0)) then
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// begin
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// InfoBox(TX_INVALID_DATE, TC_INVALID_DATE, MB_OK);
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// Exit;
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// end;
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OKPressed := True;
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Close;
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end;
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procedure TfrmDateRange.cmdCancelClick(Sender: TObject);
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begin
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inherited;
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Close;
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end;
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end.
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