Class (Property)

ONLINE HELP
WINDEV, WEBDEV AND WINDEV MOBILE

Version:

Home | Sign in | English (generic vocabulary)

This content has been translated automatically. Click here to view the French version.

Help / WLanguage / WLanguage properties / Various properties

Comparing a class instance
Getting the type of an advanced variable

WINDEV

WEBDEV

WINDEV Mobile

Others

See also

Class (Property)

In french: Classe

The Class property is used to get the actual type of the class instance handled by an object, variant or dynamic object variable.

When used on advanced types (gglxxx, rssxxx or xlsxxx variables), the Class property gets the type of variable.

Example

// Declare the base class named CBase
CBase is Class
END

// Declare the sub-class named CSub
CSub is Class
	inherits from CBase
END

// allocate a dynamic object of BaseC type
po is object dynamic = new CBase
// the real type of the dynamic object is CBase: 
// the trace displays the "CBase" string
Trace(po..Class)

// allocate a dynamic object of CSub type
po is object dynamic = new CSub
// the real type of the dynamic object is CSub: 
// the trace displays the " CSub " string
Trace(po..Class)

Syntax

Getting the type of the class instance Hide the details

<Result> = <Variable used>..Class

<Result>: Character string

Class name,
Empty string ("") if the dynamic object is not created.

<Variable used>: Variable name

Name of the object, dynamic object or variant variable to be used.

Remarks

Comparing a class instance

A class instance can be compared directly with the class name (without using quotation marks).

For example:

IF po..Class = Class1 THEN ...

Another example:

SWITCH po..Class
	CASE Class1:  ...
	CASE Class2: ...
END

Getting the type of an advanced variable

When used on an advanced type, the Class property gets the type of variable. The name of the type is returned in the language of the runtime framework (in French for a French version, in English for an international version).

To make sure the code is compatible between the French and the international versions, it is recommended to compare the result of the Class property with the desired type (without quotation marks). For example:

IF v..Class = Border THEN
	...
END
SWITCH v..Class
	 CASE Border:
	  ...
	 CASE xlsRow: 
END