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Stored procedures
Used to find out whether a property exists on a control or on a class instance.
Example
PROCEDURE ChangeCaption(ControlName, NewCaption)
 
IF PropertyExist(ControlName, "Caption") THEN
ControlName.Caption = NewCaption
END
Syntax
<Result> = PropertyExist(<Element> , <Property>)
<Result>: Boolean
  • True if the property exists,
  • False otherwise.
<Element>: Character string or class
Name of the control or name of the class instance to use.
  • If this parameter corresponds to the name of a control, the property is searched among the standard WLanguage properties.
  • If this parameter corresponds to a Class variable, the property is searched among the properties defined for the class.
<Property>: Character string
Name of the property whose existence must be checked.
Component: wd270vm.dll
Minimum version required
  • Version 18
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