app execution

[jahlxx]

HI.

 

I have a procedure, that shows a modal form.

 

The app must wait to that form to close, but the execution of the procedure that calls the form, continues execution before the user close the modal form.

 

how can I solve this?

 

thanks.

 

[Sherzod]

Hi,

 

Use callback:

 

For example:

C:\Program Files (x86)\FMSoft\Framework\uniGUI\Demos\Desktop\Form Callback

Best regards.

[jahlxx]

Hi.

 

Don't work.

 

In that sample, If you put :

 

  UniForm1.ShowModal(ShowCallBack);
  UniMemo1.Lines.Add('hello');
  UniMemo1.Lines.Add('hello');
  UniMemo1.Lines.Add('hello');
  UniMemo1.Lines.Add('hello');
  UniMemo1.Lines.Add('hello');

 

You can see that the execution doen't wait until the callback.

 

 

[Sherzod]

Yes of course,
You must change the logic and move "the codes" to the Callback function

[jahlxx]

is the only way?

[Farshad Mohajeri]

is the only way?

 

Currently yes.

[jahlxx]

ok. thanks.

[jahlxx]

is a very big problem for me, and I don't know how to solve it.

 

I'm trying to migrate vcl apps to unigui, and I need that the showmodal procedure of a form, wait until the form is closed.

 

I have some parametrized modal forms, that returns some values, but if tha app is still running after the showmodal, is a problem for me.

[jahlxx]

could be a good idea this functionallity in future releases?

[jahlxx]

grgrgrgrgrrggrgrgrgrgrgrgr,

 

I'm still with this problem I don't know how to solve it, because the showmodal doesn't wait to form close.

 

I have a tuniedit..

 

In key press of some key, a form is displayes with the info of a table and the user select one row,

 

In the close of the form, the value of a field mus be returned, and must be captured for the initial tuniedit.

 

Some help, please. I'm getting crazy. I don't know how to do this.

 

In vls apps, the showmodal waits until the form is closed, but in unigui not.

 

 

Thanks.

[ZigZig]

Web frameworks such as ExtJS are asynchronous (the first "A" of "AJAX" means "asynchronous").

So you cannot directly synchronize client actions (such as closing a modal form) and server actions (such as using Delphi code, which runs on server side, to put a specific value in a field).  It is not a limitation of uniGUI, it's just the way Web Client-Server applications are.  

 

The only way, if you want to synchronize client action (done on a browser) and server reaction (written in Delphi and running on your server), is to use callback procedure.  Otherwise, you can write a 100% client procedure (in Javascript) to put the value of your field into your TUniEdit (see Client Events) : this way will by synchronous (because it stays on client side) !

[asapltda]

procedure TMainmForm.BTNSHOWLOGINClick(Sender: TObject);

begin

  SHOWLOGIN();

end;

 

procedure TMainmForm.SHOWLOGIN;

begin

 

 FLOGINMVL.SHOWMODAL(

   procedure(Sender: TComponent; Result: Integer)

   var

    i:Integer;

   begin

      // LOGIN OK

      if Result = mrOk then begin

        FMENUMVL.SHOWMODAL(procedure(Sender: TComponent; Result: Integer)

         begin

         if Result = mrOk then begin

         end;

          if Result = mrcancel then begin

 

         end;

         end)

       end;

      // LOGIN INVALIDO

      if Result = mrcancel then begin

      end;

   end)

 

 

end;

[jahlxx]

hi.

 

I understand what you say.

 

but I don't know how to return a value with callback method.

[asapltda]

procedure TFLOGIN2.UniButton_LOGINClick(Sender: TObject);

VAR

 W_STR:STRING;

begin

 

 

  g_usuario:= UpperCase(Trim(usuario.text));    <-- USER CODE

  g_passw  := trim(passW.text);                            <-- PASSWORD VALUE

 

 

  // VALIDAR USUARIO

  if d.GET_USUARIO(g_usuario  , g_PASSW ) = false then  begin    <----  D. IS DATAMODULE

    MSGERROR.Caption := 'GET_USUARIO--Usuario Invalido';

    USUARIO.SetFocus;

    exit;

  end;

 

 

  CONFIGURACIONPARMS.G_Usuario :=  g_usuario;

  UniMainModule.G_USUARIO      :=  g_usuario;                                  <-------    MainModule THROUGH SHARE IS THE WAY AS BETWEEN DATA FORMS 

 

 

 

  //showmessage('USUARIO CONECTADO');

 

  ModalResult := mrOk  ;

end;

[asapltda]

IN DATAMODULE

FUNCTION TD.GET_USUARIO(P_USUARIO, P_PASSW:string; var P_ClientDataSet: TClientDataSet):boolean ;  //  20140908

 

Begin

 

  if DATABASE.Connected = false then

    ShowMessage('SIN CONECCION A LA BASE DE DATOS');

 

  T_SQL:= 'SELECT ACTIVO FROM USRMST WHERE USUARIO= ''%s'' AND PASSW = ''%s''  AND FECVEN >=  ''%s'' ' ;

  T_sql:=  format(T_sql, [P_USUARIO, P_PASSW, DATETOSTR(DATE)]);

  result:= GET_TABLA_GENERICA(T_SQL);

end;

[asapltda]

IN MainModule

 

type

  TUniMainModule = class(TUniGUIMainModule)

  private

    { Private declarations }

  public

    G_cono:string;

    g_cliente:string;

    g_pedidocliente:string;

    g_string:string;

    g_usuario:string;

    G_RECURSO:string;

   

 

  end;

[jahlxx]

Hi.

 

This solution is not valid for me.

 

I'm trying to do a general lookup form, as I have in vcl app.

 

With the solution offered, I have only solved once, and I have to do with every uniedit field. I can't do a unique lookup form for all the fields in the application.

 

I have tried, and works, but I must repeat the same code for all the fields. One problem I have is that I don't know from wich field I am calling the searh form.

[jahlxx]

I think that if I could know the edit field from the modalform is called, the problem could be solved.

[Farshad Mohajeri]

I don't understand why you need blocking modal forms.

 

You can show a uniGUI modal form, capture the result in callback function and assign it to the Edit field.

[ZigZig]

I'm trying to do a general lookup form, as I have in vcl app.

Unfortunately, as I said before, your wish doesn't meet the standard way client-server apps are made in asynchronous mode.

[jahlxx]

ok.

 

I do as farshad says. But I can't do a general modal form parametrizable.

 

I'll do it with every element one by one.

 

Thanks to all.

[jahlxx]

Hi.

 

Is now, with the newest releases of unigui, the possibility of use the showmodal method like in traditional vcl apps?

 

 

Thanks.

[Farshad Mohajeri]

Hi.

 

Is now, with the newest releases of unigui, the possibility of use the showmodal method like in traditional vcl apps?

 

 

Thanks.

Yes

[jahlxx]

Ok.

 

Can you tell me how? Any sample?

 

Thanks.

[jahlxx]

Ok.

 

I've got it.

 

I forgot to set  EnableSynchronousOperations in MainModule.

 

I don't know what negative consecuences this have for the application, in performance terms.

 

Some explanation about this will be wellcome.

 

Thanks.