https://learn.microsoft.com/ru-ru/dotnet/api/system.activities.xamlintegration.icompiledexpressionroot.getexpressiontreeforexpression?view=netframework-4.8
ICompiledExpressionRoot.GetExpressionTreeForExpression Method (System.Activities.XamlIntegration) |...
Gets the expression tree used for the expression.
methodsystemactivities