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show checkbox in virtualstringtree
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Topic: show checkbox in virtualstringtree (Read 4706 times)
majid.ebru
Sr. Member
Posts: 494
show checkbox in virtualstringtree
«
on:
August 20, 2018, 02:37:33 pm »
Hi
how can i show checkbox in virtualstringtree?
i read
this example
but my app crashed?
i changed some properties of VST.
can anybody help me?
Logged
balazsszekely
Guest
Re: show checkbox in virtualstringtree
«
Reply #1 on:
August 20, 2018, 02:39:54 pm »
Set the CheckType property of each node to ctTriStateCheckBox.
Logged
majid.ebru
Sr. Member
Posts: 494
Re: show checkbox in virtualstringtree
«
Reply #2 on:
August 20, 2018, 02:52:37 pm »
how can i do that?
i use this code :
Code: Pascal
[Select]
[+]
[-]
.
.
.
ParentNode
:
=
VST
.
GetFirstChild
(
nil
)
;
T_Node
:
=
VST
.
AddChild
(
ParentNode
)
;
VST
.
Expanded
[
ParentNode
]
:
=
True
;
LMyNode
:
=
VST
.
GetNodeData
(
T_Node
)
;
LMyNode
^
.
Col1
:
=
FieldS
[
15
]
.
Text
;
LMyNode
^
.
Col2
:
=
FieldS
[
14
]
.
Text
;
.
.
.
if possible ,i want show checkbox only for level 3
«
Last Edit: August 20, 2018, 02:58:35 pm by majid.ebru
»
Logged
balazsszekely
Guest
Re: show checkbox in virtualstringtree
«
Reply #3 on:
August 20, 2018, 02:57:42 pm »
@majid.ebru
Quote
how can i do that?
When you init the nodes. For example:
Code: Pascal
[Select]
[+]
[-]
var
Node
:
PVirtualNode
begin
Node
:
=
VST
.
AddChild
(
nil
)
;
//add a root node to tree
Node
^
.
CheckType
:
=
ctTriStateCheckBox
;
end
;
If you wish to find the checkstate of a node:
Code: Pascal
[Select]
[+]
[-]
if
(
VST
.
CheckState
[
Node
]
=
csCheckedNormal
)
then
begin
end
;
Logged
majid.ebru
Sr. Member
Posts: 494
Re: show checkbox in virtualstringtree
«
Reply #4 on:
August 21, 2018, 07:49:36 am »
when i use your code
i have error access denied
Logged
balazsszekely
Guest
Re: show checkbox in virtualstringtree
«
Reply #5 on:
August 21, 2018, 09:23:59 am »
Quote
when i use your code
i have error access denied
Please attach a small demo project where the tree is already populated. Also specify the nodes where you wish to have checkbox support(node level or some other criteria).
Logged
majid.ebru
Sr. Member
Posts: 494
Re: show checkbox in virtualstringtree
«
Reply #6 on:
August 21, 2018, 04:22:43 pm »
hi
i clear many of Function and Procedure!?!?
i add child to tree in unit_DM_Element line 4132
i compress project to 3 part
thank you
«
Last Edit: August 21, 2018, 05:06:26 pm by majid.ebru
»
Logged
balazsszekely
Guest
Re: show checkbox in virtualstringtree
«
Reply #7 on:
August 21, 2018, 04:48:02 pm »
You're application is not working(sigsegv) and I don't have time to debug it. Please add a simple demo(no dependencies, no sql, etc...) otherwise I cannot help you.
Logged
majid.ebru
Sr. Member
Posts: 494
Re: show checkbox in virtualstringtree
«
Reply #8 on:
August 21, 2018, 04:51:56 pm »
thank you
Logged
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