ExpressionCollectionAdd Method

public Expression Add(
	string name,
	string description,
	string expression
)

Public Function Add ( 
	name As String,
	description As String,
	expression As String
) As Expression

public:
Expression^ Add(
	String^ name, 
	String^ description, 
	String^ expression
)

1var db = HostApplicationServices.WorkingDatabase;
2var expressionColl = CivilDocument.GetCivilDocument(db).Styles.LabelStyles.ParcelLabelStyles.AreaLabelStyles.Expressions;
3var customExpression1 = expressionColl.Add("NewExpression", "SomeDescription", "{Drawing Scale Conversion}*100.0");
4var customExpression2 = expressionColl.Add("NewExpression2", "SomeDescription2", $"{customExpression1.ReferenceString}>6.0");