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Comment: Published by Scroll Versions from space WDESIGNER and version 24.0
Syntax
Code Block
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 aVariable.exists()
Semantics Returns true if aVariable is not null, otherwise false. See NULL Values to read more about null values.
Substitutables aVariableCan be a variable or an attribute of an object. 
Examples
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set b1 = x.exists();
set b2 = myObject.myAttr.exists();

Assigns the boolean return value of operation exists() to variable b2. Returns true if the attribute myAttr of object myObject is not null.

rp
Panel
titleRelated Pages: