How to set a checkbox as checked

[scott_cd]

I am trying to set a checkbox and I am not sure of the correct syntax and I am using the following code:

Code (autolisp) Select Expand

(dcl-Control-SetProperty Tree_Survey/Form1/CheckBox7 1)

I understand that

0 = unchecked
1 = checked
2 = indeterminate

Using control property as below what is the PropertyApiName ?

(dcl-Control-SetProperty Tree_Survey/Form1/CheckBox7 PropertyApiName [as String] NewValue [as Varies])

Thanks in advance
Scott

[marcoheuer]

Code (autolisp) Select Expand

(dcl-Control-SetValue Tree_Survey/Form1/CheckBox7 1)

best regards
marco

[scott_cd]

(dcl-Control-SetValue Tree_Survey/Form1/CheckBox7 1)

Hi Marco

Thanks forthat.

I have as you suggested changed it to set value but I still get the following error - see attached image?

Nil value not allowed ?

[roy_043]

The error message suggests that Tree_Survey/Form1/CheckBox7 control does not exist.

[scott_cd]

Would it help if I post my odcl file?

[roy_043]

Sure.

[scott_cd]

my odcl file is attached.

Thanks for helping

Scott

[roy_043]

Initializing the dialog must be done in an event handler called OnInitialize (to quote the Help).

Code (autolisp) Select Expand

(defun c:Tree_Survey/Form1#OnInitialize (/)
  (dcl-Control-SetValue Tree_Survey/Form1/CheckBox7 1)
)

[scott_cd]

Yes that makes sense... ;D

Thanks again.