strange control ref

[weitong]

I am reading a VI. On the front panel, there are some strange "Control reference" control. I don't know how they are created.

See the attached pictures.

Picture 1: You can see the three items "Show control" , "select ctrl type" and “Include data type" are grey.

Picture 2: I creat a similar control reference：Controls palette->refnum->control refnum，and then drag "Data log file refnum" into that control refnum。But I cannot make it "strictly typed" (star), the "Include data type" item is grey.

Also the VI is attached.

Thanks.

Wei

LV7.1

[TCPlomp]

make the 'data log refnum' a (strict) type definition.

Ton

[weitong]

How can I make the 'data log refnum' a (strict) type definition since the “Include data type"  option is grey out (see picture 2)? 

Can you show me how to make the "control ref" control in picture 1

Picture 1: You can see the three items "Show control" , "select ctrl type" and “Include data type" are grey.

Best,

Wei Tong

[Jared_B · Accepted solution]

Wei Tong,

This was a bug in LabVIEW 7.1 and has since been fixed.  I have attached a VI which shows this behavior and how to reproduce it (LabVIEW 7.1).  If you are using a newer version of LabVIEW you will not be able to get the disabled options.

[weitong]

Thank you so much!

I got it.

Best,

Wei