Наследование: System.Attribute
        public void Value_WhenParameterDbTypeAttributeConstructedWithValidValue_ReturnsConstructedValue()
        {
            // ARRANGE
            const SqlDbType expectedValue = SqlDbType.DateTimeOffset;

            // ACT
            var directionAttribute = new DbTypeAttribute(expectedValue);
            var actualValue = directionAttribute.Value;

            // ASSERT
            Assert.AreEqual(expectedValue, actualValue);
        }
 private void SetParameterDbTypeAttributeIfExists()
 {
     _sqlDbTypeAttribute = _property.GetAttribute<DbTypeAttribute>();
 }