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How long can be a string for a property?
Message
De
17/08/2019 22:32:32
 
 
À
17/08/2019 11:31:20
Cetin Basoz
Engineerica Inc.
Izmir, Turquie
Information générale
Forum:
Visual FoxPro
Catégorie:
Contrats & ententes
Divers
Thread ID:
01670126
Message ID:
01670146
Vues:
59
Yes, I have a clear memory of that being the case. I think Tamar documented it, in fact.

>>>>Hi,
>>>>
>>>>I am storing a long SQL Select string into a property of a form (property name SQL_SELECT). So far, I don't get any errors.
>>>>But, just in case, what is the max length of the string I could store in a property?
>>>>
>>>>TIA
>>>
>>>For an SQL select string it is 8192.
>>
>>Note that this is the "compiled" length not the text length. I remembered that much -- I forget how to get the compiled length.
>>
>>Hank
>
>Are you sure it is not the text length but compiled length?
>
>
>CREATE CURSOR mytable (dummy c(10))
>INSERT INTO mytable VALUES ('a')
>
>lcSQL = "Select * from myTable where myTable.Dummy = 'a' INTO CURSOR crsDummy nofilter"
>lcDummy = space(8192-LEN(m.lcSQL)+1)
>
>Select * from myTable where myTable.Dummy = 'a' &lcDummy.INTO CURSOR crsDummy nofilter
>
>
>This fails for me. If I decrease the command line length by changing + 1 to -2 it works.
>Same happens here:
>
>Public oForm
>
>oForm = Createobject('MyForm')
>oForm.Show()
>
>Define Class MyForm As Form
>	Add Object lb As ListBox
>
>	Procedure Load
>		Create Cursor mytable (dummy c(10))
>		Insert Into mytable Values ('a')
>	Endproc
>
>	Procedure lb.Init
>		lcSQL = "Select * from myTable where myTable.Dummy = 'a' INTO CURSOR crsDummy nofilter"
>		lcDummy = Space(8192-Len(m.lcSQL)+1)
>
>		This.RowSourceType=3
>		This.RowSource = "Select * from myTable where myTable.Dummy = 'a' "+m.lcDummy+"INTO CURSOR crsDummy nofilter"
>	Endproc
>Enddefine
>
>
>I am pretty sure in both cases compiled length would be much shorter if it didn't deny to compile.
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