ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Mapping.Controls Namespace / ExpressionChangedEventArgs Class / Expression Property
Version

Expression Property (ExpressionChangedEventArgs)
Gets the current query expression.
Syntax
public string Expression {get;}
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also