Question

Problem with a procedure

Asked by: peterkiers

Dear Experts,

Can someone please help me with this problem:

This is the case:
On a form I have put a MaskEdit and a Label.
When a user enters a date in the MaskEdit.
Something or perhaps an event has to convert the date
to the name of the day and display it in a label.


For example if the user enters: 01-01-2006
the label has to give: Wednesday.

Who can help me with this, I have also never used a MaskEdit.

Peter Kiers

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Asked On
2008-11-25 at 10:11:59ID23934914
Tags

D2006

Topic

Delphi Programming

Participating Experts
3
Points
500
Comments
6

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Answers

 

by: rllibbyPosted on 2008-11-25 at 10:30:45ID: 23036651

Out of curiosity, is there a reason why you are using a mask edit vs a TDateTimePicker? Seems like the TDateTimePicker would be more of what you are loking for, as the date validation is already built in. Plus, if you change the DateFormat to dfLong, you will also see the day in the edit field. (based on Regional settings of course).

Russell

 

by: peterkiersPosted on 2008-11-25 at 10:32:41ID: 23036662

Hi Libby on don't know how to explain it, but i want to use a MaskEdit.

Greetings. PK

 

by: rfwoolfPosted on 2008-11-25 at 12:07:48ID: 23037356

Well in my other answer I told you to use a TDateTimePicker or get one from the JVCL JEDI components.

Any ways, I believe all the tools you'll need will be in the DateUtils unit - check it out in the help menu.

For example to check if a date is valid you could use  the IsAValidDate Routine.

To get the day from a date you can use the DayOf routine.

Just add DateUtils to your unit

 

by: rfwoolfPosted on 2008-11-25 at 12:09:17ID: 23037369

So something like

MyLabel.caption := DayOf(MyMaskEdit.AsDateTime));

--I haven't tested that,

 

by: ciulyPosted on 2008-11-25 at 12:14:30ID: 23037409

something like this?

unit Unit1;
 
interface
 
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, Mask;
 
type
  TForm1 = class(TForm)
    MaskEdit1: TMaskEdit;
    Label1: TLabel;
    procedure MaskEdit1Change(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;
 
var
  Form1: TForm1;
 
implementation
 
uses dateutils;
 
{$R *.dfm}
 
procedure TForm1.MaskEdit1Change(Sender: TObject);
begin
  if pos(' ',maskedit1.Text)=0 then
    label1.caption:=LongDayNames[DayOfWeek(strtodatetime(maskedit1.Text))];
end;
 
end.
                                              
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by: ciulyPosted on 2008-11-25 at 12:15:50ID: 23037417

lately, I get question email notifications with like 2-4 hours delay. anyone else noticed this?

20120131-EE-VQP-002

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