WA Get context

WA Get context ( {* ;} object ) -> contextObj

Parâmetro	Tipo		Descrição
*	Operador	→	If specified, object is an object name (string). If omitted, object is a variable.
object	Objecto de formulário	→	Object name (if * is specified) or Variable (if * is omitted).
contextObj	Object	←	Context object if previously defined, otherwise null.

Descrição

The WA Get context command retrieves the context object defined for $4d in the Web area designated by the * and object parameters using WA SET CONTEXT. If WA SET CONTEXT was not called for the web area the command returns null.

nota

The command is only usable with an embedded web area where the Use embedded web rendering engine and Access 4D methods parameters are set to true.

Exemplo

Checking if a context exists:

 var $contextObj:=WA Get context(*; "myWebArea")

 If ($contextObj=Null)
	ALERT("No context set for this web area.")
 Else 
	ALERT("Context is defined!")
 End if

Veja também

WA SET CONTEXT

Propriedades

Command number	1849
Thread safe	✗