SetTopIndex

[donnieworld]

(dcl-ListBox-SetTopIndex HASD_Surveypoints/frmPointExport/lstElev 3)

why doesn't this work? OpenDCL is reporting that NIL value is not allowed.

[roy_043]

Most likely HASD_Surveypoints/frmPointExport/lstElev is nil.

[roy_043]

@Moderator: This thread should be moved to the 'Runtime/AutoLISP' section.

[donnieworld]

The listbox is created with 8 items in the list. I want the 4th item to be the default value set at runtime.

[donnieworld]

Fixed. I was attempting to set them outside of the initialization function.