The displayed Rebar Shape is created using a 'Rebar Bar for Preview'. This bar defines the bend radius displayed in the family. Using this preview bar the drawn shape cannot be completed.

public static FailureDefinitionId ShapeFailure { get; }

Public Shared ReadOnly Property ShapeFailure As FailureDefinitionId
	Get

public:
static property FailureDefinitionId^ ShapeFailure {
	FailureDefinitionId^ get ();
}