ArcGIS Pro 2.6 API Reference Guide
FixedWidthComboBox Class
Members 

ArcGIS.Desktop.GeoProcessing Namespace : FixedWidthComboBox Class
Syntax
Inheritance Hierarchy

System.Object
   System.Windows.Threading.DispatcherObject
      System.Windows.DependencyObject
         System.Windows.Media.Visual
            System.Windows.UIElement
               System.Windows.FrameworkElement
                  System.Windows.Controls.Control
                     System.Windows.Controls.ItemsControl
                        System.Windows.Controls.Primitives.Selector
                           System.Windows.Controls.ComboBox
                              ArcGIS.Desktop.GeoProcessing.FixedWidthComboBox

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

See Also

Reference

FixedWidthComboBox Members
ArcGIS.Desktop.GeoProcessing Namespace