Clears or empties the variable based on an Extended data type, to which you apply the method.
Extended data types: ExcelDocument, MailRecipientCollection, StringCollection, WebSession
Generators: .NET, .NET Framework, Java, Ruby (up to GeneXus X Evolution 3), Visual FoxPro (up to GeneXus X Evolution 3)
This method clears or empties the variable based on an Extended data type, to which you apply the method.
In the case of:
- ExcelDocument: It deletes the contents of all cells in the active worksheet.
- MailRecipientCollection/StringCollection: It empties the collection. All collection elements are deleted.
- WebSession: It clears the web session variables.
Note:This method returns an error code, so it is possible to call it as a function (&Err = &DataType.Clear()).
ExcelDocument data type
MailRecipient Data Type
MailRecipientCollection Data Type
StringCollection Data Type