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H

HasData (DataRepository)

Description

Verifies if the specified Object, ID or GUID is present in the database. This is used for debugging purposes to find out whether an object is valid or not. Trying to work with an invalid object is a serious problem. In the case of ID or GUID, it may mean that the object has been deleted.

Scripting Syntax

DataRepository.HasData( Object )

C# Syntax

Boolean DataRepository.HasData( Object in_varObject );

Parameters

Return Value

Boolean

Examples

VBScript Example

'
' This example demonstrates how to test the DataRepository 
' to test whether an object exists
'
NewScene , false
dim nIdentifier

' Create a cone and then test its existence
set oDatabase = XSIUtils.DataRepository
set oCone = CreatePrim( "Cone", "MeshSurface" )
nIdentifier = oDatabase.GetIdentifier( oCone )
Application.LogMessage oDatabase.HasData( nIdentifier )
'INFO : True

' Remove the cone and test its existence again
DeleteObj( "Cone" )
Application.LogMessage oDatabase.HasData( nIdentifier )
'INFO : False

' Restore it and test again
Undo
Application.LogMessage oDatabase.HasData( nIdentifier )
'INFO : True

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