Microsoft Enterprise Library 5.0 系列(三) Validation Application Block (高级)

企业库验证应用程序模块之配置文件模式:

1. 新建一个控制台应用程序,并创建一个Customer类,其代码如下所示:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using Microsoft.Practices.EnterpriseLibrary.Validation.Validators;
using Microsoft.Practices.EnterpriseLibrary.Validation;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
    }

    public class Customer
    {
        public string CustomerName;

        public Customer(string customerName)
        {
            this.CustomerName = customerName;
        }

        public int Test()
        {
            return -5;
        }
    }
}

2. 运行EntLibConfig.exe, 选择Blocks菜单 ,单击 Add Validation Settings .

3. 点击Validated Types 区块右上角的加号按钮,然后点击 Add Type to Validate,这时会要你选择要验证的类,因为我们是想对Customer类的属性进行验证,所以我们要导入我们刚刚创建的类,点击并Add from File找到我们的应用程序Debug文件夹下的ConsoleApplication1.exe(根据你创建时起的名字而不同),Customer类就包含在这个程序内:

4. 导入后,我们就可以看到多了个ConsoleApplication1程序集,接着我们要选择它所包含的Customer类,如下图所示,选择后点击OK:

5. 在Customer面板上右键— Add Validation Ruleset:

6. 在设置Customer面板中的Defaule Ruleset属性为新创建的Validation Ruleset,接着在Validation Ruleset面板右键—Select Members,在弹出的选择框中选择

7. 在弹出的成员选择界面,我们选择要测试的Test方法和CustomerName属性:

8. 在Field:CustomerName面板上右键—Add Validators –Add Not Null Validator:

9. 对该验证器的设置如下图所示:

10. 在Method:Test面板上右键—Add Validators –Add Range Validator:

11. 对该验证器的设置如下图所示:

12. 点击 File 菜单,单击 Save,保存为一个App.config文件,可以先保存到桌面,之后要用到它.

13. 将App.config添加到工程中,并添加需要的引用,如图所示:

14. 测试:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using Microsoft.Practices.EnterpriseLibrary.Validation.Validators;
using Microsoft.Practices.EnterpriseLibrary.Validation;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            Validator<Customer> customerValidator = ValidationFactory.CreateValidator<Customer>("Validation Ruleset");
            
            Customer myCustomer = new Customer(null);

            ValidationResults r = customerValidator.Validate(myCustomer);
           
            if (!r.IsValid)
            {
                for (int i = 0; i < r.Count; i++)
                {
                    Console.WriteLine("出错{0}:" + r.ElementAt(i).Message, i + 1);
                }
            }
            else
            {
                Console.WriteLine("正确");
            }
        }
    }

    public class Customer
    {
        public string CustomerName;

        public Customer(string customerName)
        {
            this.CustomerName = customerName;
        }

        public int Test()
        {
            return -5;
        }
    }
}