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IsUndefined Method


GrapeCity.CalcEngine Assembly > GrapeCity.CalcEngine Namespace > IReferenceSource Interface : IsUndefined Method
Determines whether this reference source is undefined.
Syntax
'Declaration
 
Function IsUndefined() As Boolean
'Usage
 
Dim instance As IReferenceSource
Dim value As Boolean
 
value = instance.IsUndefined()
bool IsUndefined()

Return Value

true if this reference source is undefined; otherwise, false.
See Also

Reference

IReferenceSource Interface
IReferenceSource Members