AutoCAD Map 3D 2009 Geospatial Platform Reference

AutoCAD Map 3D Geospatial Platform API

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MgNullableProperty
IsNull
SetNull
bool MgNullableProperty::IsNull (  ) 

Determines whether the GetValue and SetValue methods are enabled.

.NET Syntax
bool IsNull();
Java Syntax
boolean IsNull();
PHP Syntax
bool IsNull();

Returns:
Returns true if the GetValue and SetValue methods are enabled; otherwise returns false.

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