The number of middle supports used in the stair.

Namespace: Autodesk.Revit.DB.Architecture
Assembly: RevitAPI (in RevitAPI.dll) Version: 24.0.0.0 (24.0.0.0)
Since: 2013

Syntax

C#
`public int MiddleSupportsNumber { get; set; }`

Visual Basic
`Public Property MiddleSupportsNumber As Integer Get Set`

Visual C++
`public: property int MiddleSupportsNumber { int get (); void set (int value); }`

0 if the stairs type has no middle support.

Exceptions

Exception	Condition
Autodesk.Revit.ExceptionsArgumentOutOfRangeException	When setting this property: The given value for supportsNumber is negative.
Autodesk.Revit.ExceptionsInvalidOperationException	When setting this property: The stairs type has no middle support so the data being set is not applicable.