My Visual Database — Set Cursor Focus and Enter Key Handling

Re: Set Cursor Focus and Enter Key Handling

null@example.com (Asifmute) — Mon, 12 Aug 2019 15:59:17 +0000

THANKS TO @jean.brezhonek.
Your answer is really explanatory.

Re: Set Cursor Focus and Enter Key Handling

null@example.com (jean.brezhonek) — Mon, 12 Aug 2019 05:59:00 +0000

Hello Derek, Hello Asifmute

This is how Embarcadero Rad XE (language from which MVD flows) defines the use of the KeyPreview statement:

If KeyPreview is true, keyboard events occur on the form before they occur on the active control. (The active control is specified by the ActiveControl property.)

If KeyPreview is false, keyboard events occur only on the active control.

Navigation keys (Tab, BackTab, the arrow keys, and so on) are unaffected by KeyPreview because they do not generate keyboard events. Similarly, when a button has focus or when its Default property is true, the Enter key is unaffected by KeyPreview because it does not generate a keyboard events.

KeyPreview is false by default.

Have a good day

Re: Set Cursor Focus and Enter Key Handling

null@example.com (Asifmute) — Mon, 12 Aug 2019 00:57:13 +0000

OK, now I understand, Sorry I ask too much question.

Re: Set Cursor Focus and Enter Key Handling

null@example.com (derek) — Mon, 12 Aug 2019 00:12:42 +0000

Hi,
As I understand it, setting 'keypreview' to true basically allows you to process an action (in this example, using the 'enter' key) AT THE FORM LEVEL instead of writing code for each individual object on that form.
Derek.

Re: Set Cursor Focus and Enter Key Handling

null@example.com (Asifmute) — Sun, 11 Aug 2019 22:51:15 +0000

THANKS, SIR, ONE QUESTION MORE,
Why KEYPREVIEW is needed...
//** don't' forget to set 'key preview = true' on Form1 object properties

Re: Set Cursor Focus and Enter Key Handling

null@example.com (derek) — Sun, 11 Aug 2019 14:49:51 +0000

Hi,
Attached is an example of using the 'enter' key to simulate the 'tab' key.
Derek.

Re: Set Cursor Focus and Enter Key Handling

null@example.com (Asifmute) — Sun, 11 Aug 2019 10:25:12 +0000

Please uplaod a sample.

Re: Set Cursor Focus and Enter Key Handling

null@example.com (chrisyoco) — Tue, 09 Oct 2018 19:29:13 +0000

Thanks it worked a lot

Re: Set Cursor Focus and Enter Key Handling

null@example.com (jean.brezhonek) — Mon, 08 Oct 2018 06:46:03 +0000

Hello chrysoco

CAn this be a clue for you ?

procedure frmEmployee_Ctrl_OnKeyDown (Sender: string; var Key: Word; Shift, Alt, Ctrl: boolean);
begin
if Key=13 then frmEmployee.SetFocusNextControl;
end;

begin
frmEmployee.bSave.Default := False;
end.

Set Cursor Focus and Enter Key Handling

null@example.com (chrisyoco) — Mon, 08 Oct 2018 02:59:55 +0000

How am i able to translate the following script for MVD.

I wish to press enter and to set focus to the next textbox.

Procedure textBox1_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
textBox2.Focus();
}
}