ArcGIS Pro 2.7 API Reference Guide
SymbolPickerControl Class
Members 

ArcGIS.Desktop.Mapping.Controls Namespace : SymbolPickerControl Class
Use the SymbolPickerControl to display "symbols" (i.e ArcGIS.Desktop.Mapping.StyleItem) for selection. SymbolPickerControl
Object Model
SymbolPickerControl ClassStyleItem Class
Syntax
Remarks
Use in conjunction with the SymbolSearcherControl to provide a searching experience similar to the "built-in" symbol picker shown on the Pro symbology dockpane
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.ContentControl
                        System.Windows.Controls.UserControl
                           ArcGIS.Desktop.Mapping.Controls.SymbolPickerControl

Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

SymbolPickerControl Members
ArcGIS.Desktop.Mapping.Controls Namespace