ArcGIS Pro 3.2 API Reference Guide
ArcGIS.Core.Geometry Namespace / SpatialReferenceBuilder Class / IsUnknown Property

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    IsUnknown Property (SpatialReferenceBuilder)
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    Gets a value indicating if this is the Unknown coordinate system. This method must be called on the MCT. Use QueuedTask.Run.
    Syntax
    public bool IsUnknown {get;}
    Public ReadOnly Property IsUnknown As Boolean
    Exceptions
    ExceptionDescription
    This method or property must be called within the lambda passed to QueuedTask.Run.
    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3 or higher.
    See Also