Hello,

I an using WinCC 7.5 SP2 Upd13.

I want to make a screen item visible based on the value of a string. To simplify it, here is an example:

There is a string TESTSTRING which is internal and type 8-bit character set.

On a screen I want to display an object only if TESTSTRING = "abc"

The object should appear and disappear each time TESTSTRING changes to/from abc.

This seems easy, but I can't do it. I have tried using dynamic display and C and VB and nothing works. Please can you tell me how to do it.

Thanks.

You can try something like 

If StrComp(SmartTags("TESTSTRING"),"abc",1)=0 Then
 yourObject.Visible = true
Else
 yourObject.Visible = false
End If

 Here is an explanation about StrComp function: VBScript StrComp Function (w3schools.com)

Hope it helps