'宣言 Public Overrides Function EvaluateWithEnvironment( _ ByVal item As Object, _ ByVal dataProvider As IDataSourceDataProvider, _ ByVal schema As IDataSourceSchema, _ ByVal environment As IFilterExpressionEnvironment _ ) As Object
public override object EvaluateWithEnvironment( object item, IDataSourceDataProvider dataProvider, IDataSourceSchema schema, IFilterExpressionEnvironment environment )