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How does ReadExpression work?
Message
De
19/10/2001 12:46:48
 
 
À
19/10/2001 12:41:30
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Divers
Thread ID:
00570921
Message ID:
00570973
Vues:
20
>>
>>...
>>loCol = loGrid.Column5
>>lcProp = "ReadOnly"
>>? loCol.ReadExpression(lcProp)
>>
>>
>>I expect the above code to return the value of Column5.ReadOnly, but I get an empty string. What am I missing?
>>
>>I have opened a form, selected a grid, and run a short program. The code above is part of this program. The idea of my small builder program is to insert a column (all properties should be copied from column5 to column6, then from column4 to column5, etc.).
>>
>>TIA, Hilmar.
>
>Apparently it only works if you have previously used the WriteExpression() method on the object and the specific property. Doesn't work with default values or with values entered at design-time or programmatically at runtime directly to the property. This contradicts the documentation which states that it returns the value entered in the properties window. But maybe I am missing something here.
>
>I suppose if you want to retrieve the property's value and display it you can always use Transform(object.Property) :)

Upon further inspection, if you enter the property as an expression with a leading "=", it does return the correct text.
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