Constructor ConditionLeaf

Creates a leaf condition whose left-hand side is a fact field (or a custom function).

public ConditionLeaf(string? field, ConditionOperator @operator, object? value, string? functionName = null)

field string: Dotted path resolved against the fact. Required for every operator except Custom, where it is optional (a custom function without a field receives the whole fact).
operator ConditionOperator: The comparison operator.
value object: The comparison operand: a CLR scalar (string, bool, long, decimal, double), null, or an object array for In/NotIn.
functionName string: Registered function name; required when operator is Custom.

ArgumentException: A custom leaf has no function name, or a non-custom leaf has no field.

Creates a leaf condition whose left-hand side is a computed value expression.

public ConditionLeaf(ValueExpression left, ConditionOperator @operator, object? value)

left ValueExpression: The expression whose value is compared against value.
operator ConditionOperator: The comparison operator (not Custom).
value object: The comparison operand (see the field constructor).