handling system objects

[strato]

allowed instead of the following command:

Lianja.get("page.section").filter = m.my_filter

to write this?

my_sec = Lianja.get("page.section")
my_sec.filter = m.my_filter

and can I use it this way?

my_grid = Lianja.get("page.section").Grid
my_row = my_grid.activerow

[barrymavin]

Hi Sandor,

Yes.

You can try in the command window with an app open.

[strato]

and what happens in this case?

my_row = fx_row()

procedure fx_row
my_grid = Lianja.get("page.section").grid
return my_grid.activerow

same:

my_grid = Lianja.get("page.section").grid

rele my_grid
? Lianja.get("page.section").grid      (Uundefined)

[josipradnik]

Hi Strato,

I've modified example_gridfilter to show some of these cases (lib_page1_section2.prg).
So we have a common starting point and it is reproducible for everyone.

////////////////////////////////////////////////////////////////
// Event delegate for 'click' event
proc page1_section2_field1_click()
    Lianja.get("section1").grid.filter = "startsWith(customerid, 'B')"
    
    my_grid=Lianja.get("section1").grid
    messagebox(vartype(my_grid))
endproc


////////////////////////////////////////////////////////////////
// Event delegate for 'click' event
proc page1_section2_field2_click()
    my_row=Lianja.get("section1").grid.activerow
    messagebox(transform(my_row,''))


    Lianja.get("section1").grid.filter = "startsWith(customerid, 'A')"
endproc

////////////////////////////////////////////////////////////////
// Event delegate for 'click' event
proc page1_section2_field3_click()
    //Lianja.get("section1").grid.filter = ""


    my_grid=Lianja.get("section1").grid
    my_grid.filter=""
endproc

These are buttons B and A.

Results:
Button A clicked: some number (of selected row before filtering in this example)
Button B clicked: O (=object type)
Button C clicked: no filter value

Parsing the commands is tricky in a programming language, so I use variables here, not the whole expressions.

[strato]

hi Josip,
did you try to click multiple times to buttons?

[josipradnik]

I did. Nothing unexpected.
Did you try to put this code into this example in your Lianja installation?

[barrymavin]

There is an issue in the beta you downloaded. It has been fixed in 7.0RC2.