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Stored procedures
Used to find out whether a property exists on a control or on a class instance.
Versions 21 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Versions 22 and later
WINDEVJava This function is now available for the Java applications.
New in version 22
WINDEVJava This function is now available for the Java applications.
WINDEVJava This function is now available for the Java applications.
Example
PROCÉDURE ChangeCaption(ControlName, NewCaption)

IF PropertyExist(ControlName, "Caption") THEN
ControlName..Caption = NewCaption
END
Syntax
<Result> = PropertyExist(<Element> , <Property Name>)
<Result>: Boolean
  • True if the property exists,
  • False otherwise.
<Element>: Character string (with or without quotes) 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 sought among the standard properties of WLanguage.
  • If this parameter corresponds to a Class variable, the property is sought among the properties defined for the class.
<Property Name>: Character string (with quotes)
Name of the property whose existence must be checked.
Component : wd250vm.dll
Minimum version required
  • Version 18
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