An object that represents a null SvgDocument
.
In some instances, an SvgDocument object that is not initialized (is null) is required. For instance, when serializing raster images to a system that do not support a true null
value. In this case, NullInstance can be used to represent an SvgDocument
that has not been initialized (but is not null
). IsNull can be used to test whether an SvgDocument
object is the null instance.
The NullInstance raster image is a global object and calling any other member besides IsNull will throw an exception. The one exception is calling Dispose which will be ignored.
Note that calling svgDocumentObject.IsNull
is the equivalent of svgDocumentObject == SvgDocument.NullInstance
.