Returns the geometry for a bar at the specified index currently in the Rebar. 
Namespace: Autodesk.Revit.DB.Structure
Assembly: RevitAPI (in RevitAPI.dll) Version: 24.0.0.0 (24.0.0.0)
Since:  2018 
Syntax
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Parameters
- barIndex
 - Type: SystemInt32
The index of the bar. Should be a number between 0 and GetNumberOfBars() - 1. 
Return Value
Returns an array of curves that defines the bar at the specified index.Exceptions
| Exception | Condition | 
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| Autodesk.Revit.ExceptionsArgumentOutOfRangeException | barIndex is not in the range [ 0, GetNumberOfBars()-1 ]. |