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FMXGrid filter problem

FMX TMS FMX UI Pack
#1

Good morning,
strange problem using filter with FMXGrid under android.

In a form i have the grid (filled, sorted) and 3 radio buttons.
The grid has last column (n.11) setted with "Flag" and the flag can be 1 or 2.

Here the code of all 3 radio buttons

procedure FMX_Form1.RB1Change(Sender: TObject);
begin
SG1.RemoveFilter;
SG1.Filter.Clear;
end;

procedure FMX_Form1.RB2Click(Sender: TObject);
begin
SG1.RemoveFilter;
SG1.Filter.Clear;
with SG1.Filter.Add do
begin
Column:=11;
Condition:='= 1';
end;
SG1.ApplyFilter;
end;

procedure FMX_Form1.RB3Click(Sender: TObject);
begin
SG1.RemoveFilter;
SG1.Filter.Clear;
with SG1.Filter.Add do
begin
Column:=11;
Condition:='= 2';
end;
SG1.ApplyFilter;
end;

RB1 = Radiobutton1 (ecc..)

What is happend is that if i "click" over RB2 (or RB3) nothing happend ....
The filter is not, apparently, applied, so i tap one of the other radio buttons and the filter works.
If i tap the rb2 or rb3 the filter works well, i have the grid filtered for "flag 1 o 2" but if i tab on rb1, i reset the filter (remove all filter) the grid will be without filter (i see all record, good) and if i try to set the filter again .... i'm in the starting position (the filter works only to second tap).

Can you tell me where i make a mistake ??

Thank's

Daniele

#2

Did you already debug the event handlers and checked if they are actually called? Did you try with buttons instead of radiobuttons? I see you are mixing radio button change and click event handlers, both have a different behaviour

#3

Hi Pieter,
first of all thank you for your big patience !!!
I made some test and some "code improvement" ... if i can use the term "improvement"
I remove SG1.Filter.Clear because it's already called into SG1.RemoveFilters and i used RemoveFilters instead RemoveFilter (without "S").
Regarding your suggestion, no i'm using radiobuttons .... now i do not need to use button, i tell you later.
You'e rigth ... i mixed two different events, i work with change....
But the result is the same ...
Investigating a little, i've noticed that the problem manifests at the form show and each time i reset the grid selecting the first radio button.
So i changed the way to reset the grid and the procedure who i call to clear the filters in this way (as writed above).

procedure FMX_Form1.RB1Change(Sender: TObject);
begin
  SG1.RemoveFilters;
end;

procedure FMX_Form1.RB2Change(Sender: TObject); // The same for RB3
begin
   SG1.RemoveFilters;
   with SG1.Filter.Add do
   begin
     Column:=11;
     Condition:='= 1';
   end;
   SG1.ApplyFilter;
end;

Now all works well ..
Excuse me for long message but i want to report all my changes.

Thank you again

Daniele

#4

Thanks for reporting the issue is fixed.

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