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How to find the number of items checked in a check group?
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Author
Topic: How to find the number of items checked in a check group? (Read 1151 times)
Doe
New Member
Posts: 17
How to find the number of items checked in a check group?
«
on:
March 28, 2021, 11:17:33 pm »
Hello, guys. I was trying to get the number of items checked within a check box and assign it to variable j. But it seems the value of j is 0 no matter how many items are checked. My code is below:
Code: Pascal
[Select]
[+]
[-]
unit
Unit1
;
{$mode objfpc}{$H+}
interface
uses
Classes
,
SysUtils
,
Forms
,
Controls
,
Graphics
,
Dialogs
,
ExtCtrls
,
StdCtrls
;
type
{ TForm1 }
TForm1
=
class
(
TForm
)
Button1
:
TButton
;
CheckBox1
:
TCheckBox
;
CheckBox2
:
TCheckBox
;
CheckBox3
:
TCheckBox
;
CheckBox4
:
TCheckBox
;
CheckBox5
:
TCheckBox
;
CheckGroup1
:
TCheckGroup
;
procedure
Button1Click
(
Sender
:
TObject
)
;
private
public
end
;
var
Form1
:
TForm1
;
i
,
j
:
integer
;
implementation
{$R *.lfm}
{ TForm1 }
procedure
TForm1
.
Button1Click
(
Sender
:
TObject
)
;
begin
j
:
=
0
;
for
i
:
=
0
to
CheckGroup1
.
Items
.
Count
-
1
do
begin
if
CheckGroup1
.
Checked
[
i
]
then
begin
j
:
=
j
+
1
;
end
;
end
;
showmessage
(
FloatToStr
(
j
)
)
;
end
;
end
.
Logged
engkin
Hero Member
Posts: 3112
Re: How to find the number of items checked in a check group?
«
Reply #1 on:
March 28, 2021, 11:52:45 pm »
Maybe because you have zero for CheckGroup1.Items.Count, because you did not put anything in CheckGroup1.Items using OI for instance.
Logged
Doe
New Member
Posts: 17
Re: How to find the number of items checked in a check group?
«
Reply #2 on:
March 29, 2021, 12:39:28 am »
So how can I fix it?
Logged
Doe
New Member
Posts: 17
Re: engkin
«
Reply #3 on:
March 29, 2021, 12:43:24 am »
How can I fix this problem?
Logged
engkin
Hero Member
Posts: 3112
Re: How to find the number of items checked in a check group?
«
Reply #4 on:
March 29, 2021, 01:54:56 am »
Select the GroupBox and look for
Items
in the Object Inspector. Open them and add the items you want, one in each line. When you close it, the check boxes will be visible in the GroupBox.
Logged
Josh
Hero Member
Posts: 1274
Re: How to find the number of items checked in a check group?
«
Reply #5 on:
March 29, 2021, 01:55:57 am »
Hi
It may help if you upload the complete project.
Using your code to calculate the checked I have created a project for you; hopefully it may help
Logged
The best way to get accurate information on the forum is to post something wrong and wait for corrections.
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How to find the number of items checked in a check group?
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