System.Data.DataExpression.Invoke C# (CSharp) Метод

        public bool Invoke(DataRow row, DataRowVersion version)
        {
            if (_expr == null)
                return true;

            if (row == null)
            {
                throw ExprException.InvokeArgument();
            }
            object val = _expr.Eval(row, version);
            bool result;
            try
            {
                result = ToBoolean(val);
            }
            catch (EvaluateException)
            {
                throw ExprException.FilterConvertion(Expression);
            }
            return result;
        }