begin
    Form1.Width  := 3000 ;
    Form1.Height := 3000 ;
    Form1.Button1.Top  := 2900 ;
    Form1.Button1.Left := 2900 ;

    Form1.AutoScroll := True;

    Form1.VertScrollBar.IsScrollBarVisible;
    // Form1.VertScrollBar.ScrollPos  := 100 ;
    Form1.VertScrollBar.ButtonSize := 100 ;
    Form1.VertScrollBar.Position  := 100 ;
    Form1.VertScrollBar.Range := 100;
    Form1.VertScrollBar.Tracking := True;
    Form1.VertScrollBar.Visible := True;

    Form1.HorzScrollBar.IsScrollBarVisible;
    // Form1.HorzScrollBar.ScrollPos  := 100 ;
    Form1.HorzScrollBar.ButtonSize := 100 ;
    Form1.HorzScrollBar.Position  := 100 ;
    Form1.HorzScrollBar.Range := 100;
    Form1.HorzScrollBar.Tracking := True;
    Form1.HorzScrollBar.Visible := True;

end.

Error At 

Form1.VertScrollBar.ScrollPos  := 100 ;

And When Run Compile  Form Not Effect Haven't ScrollBar ???
Or set other properties too?

TextMode

+-----------------------------------------------------------------+
| Desktop Screen (Actual Display Area: Width 400 x Height 300)    |
|                                                                 |
|   +---------------------------------------------------------+   |
|   | Form (Width 3000 x Height 3000)                         |   |
|   | [Clipped / Overflowing Screen]                          |   |
|   |                                                         |   |
|   | (Top-Left content is visible...)                        |   |
|   |                                                         |   |
|   |                                                         |   |
|   |                                                         |   |
|   |   +----------------------------+                        |   |
|   |   | Button at Y = 2900 (Hidden)|                        |   |
|   |   +----------------------------+                        |   |
|   +---------------------------------------------------------+   |
|                                                                 |
| ❌ Problem Encountered:                                         |
| - Desktop screen is smaller than the Form (300 < 3000)          |
| - Bottom and right edges of the Form are clipped off-screen     |
| - No Scrollbars (Vertical & Horizontal) appear to scroll        |
+-----------------------------------------------------------------+

Is it possible to do this without creating a custom ImageList?
It would be easier and save time when working with the buttons.

form2.position := pomainformcenter

etc etc.
However, any messagebox (or messagedlg) that pops up (for example, when deleting a record or confirming exit) is always centred on the whole screen and not on the main form (Form 1) - see Screenshot 2 in the attachment.
What I'd like is for any messagebox or messagedlg to also be centred on the main form (see Screenshot 3).
I know I can always write my own messagebox but I was just wondering if it can be done using the standard messagebox
Does anyone have any ideas?
(Using MVD 6.5 and Windows 10).
Thanks,
Derek

I can't remember its name or even find it on the forum.

Does anyone still have it on their computer?
If not, I'll create a function in MVD and put it behind a button.

Thanks in advance.
JB

(Procedure Totali2(Sender: TObject; Action: string);

If I call it with the OnShow event of the form1 function.

If I call it from a script, e.s.

Totali2(form1.TableGrid2,'');

it gives me the error "List index out of bounds (0)".

I've tried various parameters but can't resolve the issue.
I'd appreciate any help. Thanks.

Requirements   :

The backup should include all records in the table.

Excel should not open; the file should save silently.

It should happen automatically when saving, with no extra clicks.

Is this possible using mvd built-in features or scripting?  Any advice would be appreciated.

L.

I’m working with My Visual Database and I need help with the following:

- I have a table called `Spec` with the fields:
  - `LevelClass`
  - `CustMassOfContam`
- I have a form called `Test` with:
  - A ComboBox `CB_LevelClass` for selecting a `LevelClass`
  - A TextBox `EDMassOfContamCust` where I want to automatically display the `CustMassOfContam` value corresponding to the selected `LevelClass`

My goal is:
- When selecting a value in the ComboBox, the TextBox should automatically display the corresponding value from the `Spec` table.

Does anyone know how to achieve this?

Thank you in advance for any guidance.

I thought that the EXE of an MVD project could only be run in the project for which it was "compiled." I've since concluded that I was wrong!

The "project_name.exe" is a "runtime" that executes an MVD application, requiring only the files: graphics.dll, sqlite3.dll, forms.xlm, settings.ini, tables.ini, script.pas, and sqlite.db to be contained in the same folder as the EXE?

I also noticed that the EXE file used in this case could have any name.

This doesn't diminish MVD's capabilities in any way. On the contrary, it simply demonstrates its versatility!

I'm not an expert on the subject and just wanted to share the information.

P.S.: This BAT was the only one that worked on Windows 11 and allows you to run any MVD application, having the EXE in another folder (single EXE)

@echo off
setlocal

REM Pega a pasta onde o .bat está
set "BATDIR=%~dp0"

REM Caminho do exe original
set "SRC=C:\run_mvd.exe"

REM Copia o executável para a pasta do bat
copy /Y "%SRC%" "%BATDIR%run_mvd.exe" >nul

REM Vai para a pasta do bat
cd /d "%BATDIR%"

REM Executa o programa e espera terminar
start "" /wait "run_mvd.exe"

REM Apaga o executável sem pedir confirmação
del /f /q "run_mvd.exe"

endlocal