Problem addressing subobject properties

[David McFarlane]

Oops, I just realized that your error message did not come just from 
mislepping "Text" as "Text1" -- in fact, Slides do *not* have a Text 
property at all, only SlideText sub-objects have a Text property. 
Sorry.  And to directly access that Text property you would have to get 
access to the Slide sub-object, which takes a bit of work, as explained 
in the SlideText topic of the E-Basic Help facility.

But this only strengthens my main point -- by using attribute 
references, you do not need access to the sub-objects at all.  Attribute 
references really can greatly simplify your work, well worth learning 
how to use them.

-- David McFarlane


David McFarlane wrote:
> Oh, also look at this link, where I further discuss why to use attribute 
> references instead of direct manipulation of object properties:
> https://groups.google.com/d/topic/e-prime/dWpfjk-BeLs/discussion
> 
> -- David McFarlane
> 
> 
> David McFarlane wrote:
>> Katrin,
>>
>> Neither Slides nor TextDisplays have a "Text1" property, they have a 
>> "Text" property, and that accounts for your error message -- see the 
>> Slide topic in the E-Basic Help facility.  So your lines should 
>> instead read
>>
>>      Slide.Text = "..."
>>
>> But if you had not made that mistake and then posted your question, I 
>> would not have the opportunity to correct you bigger mistake.  You 
>> really should not change object properties directly in code this way, 
>> for at least three reasons as I discuss at 
>> https://groups.google.com/d/topic/e-prime/g1Fv2CGaSeg/discussion .  As 
>> I explain there, you should instead use an attribute reference.  Add 
>> an attribute reference (e.g., [Text]) in your Slide or TextDisplay, 
>> and then your code might read
>>
>>     If (c.GetAttrib("Question") = "1") Then
>>          c.SetAttrib "Text", "..."
>>     Else
>>          c.SetAttrib "Text", "..."
>>     End If
>>
>> Or if you dare, do this all in a single Iif statement,
>>
>>      c.SetAttrib "Text", Iif( (c.GetAttrib("Question") = "1"), _
>>         "True...", "False..." )
>>
>> -----
>> David McFarlane
>> E-Prime training online: 
>> http://psychology.msu.edu/Workshops_Courses/eprime.aspx
>> Twitter:  @EPrimeMaster (twitter.com/EPrimeMaster)
>>
>> /-----------
>> Stock reminder:  1) I do not work for PST.  2) PST's trained staff 
>> take any and all questions at 
>> http://support.pstnet.com/e%2Dprime/support/login.asp , and they 
>> strive to respond to all requests in 24-48 hours -- this is pretty 
>> much their substitute for proper documentation, so make full use of 
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>> ), and offers several instructional videos there and on their YouTube 
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>> though).  4) If you do get an answer from PST staff, please extend the 
>> courtesy of posting their reply back here for the sake of others.
>> \-----------
>>
>>
>> Katrin wrote:
>>> I am stuck with a silly problem. I want to create a flexible 
>>> Feedbackslide on which one Textline (of a sub object) is changing 
>>> depending on an Attribute in a list before. So I used a command like
>>> If c.GetAttrib ("Question") = "1" Then
>>> Slide.Text1 = "..." Else
>>> Slide.Text1 = "..."
>>> End If
>>>
>>> But Eprime gives me an error saying that Text1 is not a an assignable 
>>> property of the object.
>>> What do I do wrong?
>>> So far I always used a Textdisplay, but now I have to use a Slide (as 
>>> there is sth else displayed there to) and I don't know if that 
>>> changes sth/how to adress the different Textfields/subobjects on it...
>>> Thanks for your help!
>>> Katrin

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