ArcGIS Pro 2.7 API Reference Guide
SetExpression Method

ArcGIS.Desktop.Mapping Namespace > LabelClass Class : SetExpression Method
Sets the label expression of the label class. This method must be called on the MCT. Use QueuedTask.Run.
Syntax
public void SetExpression( 
   string expression
)
Public Sub SetExpression( _
   ByVal expression As String _
) 

Parameters

expression
Exceptions
ExceptionDescription
This method or property must be called within the lambda passed to QueuedTask.Run.
Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

LabelClass Class
LabelClass Members