LongValidator 类

定义

public ref class LongValidator : System::Configuration::ConfigurationValidatorBase

public class LongValidator : System.Configuration.ConfigurationValidatorBase

type LongValidator = class
    inherit ConfigurationValidatorBase

Public Class LongValidator
Inherits ConfigurationValidatorBase

继承

Object

ConfigurationValidatorBase

LongValidator

示例

下面的代码示例演示如何使用 LongValidator 类型。

using System;
using System.Configuration;

namespace Microsoft.Samples.AspNet.Validators
{
  class UsingLongValidator
  {
    static void Main(string[] args)
    {
      // Display title.
      Console.WriteLine("ASP.NET Validators");
      Console.WriteLine();

      // Create Long and Validator.
      Int64 testLong =    17592186044416;
      Int64 minLongVal =  1099511627776;
      Int64 maxLongVal =  281474976710656;
      LongValidator myLongValidator = 
       new LongValidator(minLongVal, maxLongVal, false);

      // Determine if the object to validate can be validated.
      Console.WriteLine("CanValidate: {0}",
        myLongValidator.CanValidate(testLong.GetType()));

      try
      {
        // Attempt validation.
        myLongValidator.Validate(testLong);
        Console.WriteLine("Validated.");
      }
      catch (ArgumentException e)
      {
        // Validation failed.
        Console.WriteLine("Error: {0}", e.Message.ToString());
      }

      // Display and wait
      Console.ReadLine();
    }
  }
}

Imports System.Configuration

Namespace Microsoft.Samples.AspNet.Validators
  Class UsingLongValidator
    Public Shared Sub Main()

      ' Display title.
      Console.WriteLine("ASP.NET Validators")
      Console.WriteLine()

      ' Create Long and Validator.
      Dim testLong As Int64 = 17592186044416
      Dim minLongVal As Int64 = 1099511627776
      Dim maxLongVal As Int64 = 281474976710656
      Dim myLongValidator As LongValidator = _
       New LongValidator(minLongVal, maxLongVal, False)

      ' Determine if the object to validate can be validated.
      Console.WriteLine("CanValidate: {0}", _
        myLongValidator.CanValidate(testLong.GetType()))

      Try
        ' Attempt validation.
        myLongValidator.Validate(testLong)
        Console.WriteLine("Validated.")

      Catch e As Exception
        ' Validation failed.
        Console.WriteLine("Error: {0}", e.Message.ToString())
      End Try

      ' Display and wait.
      Console.ReadLine()
    End Sub
  End Class
End Namespace

注解

LongValidator用于确保 long (64 位带符号整数) 满足特定条件。 验证条件是在创建 类的实例时建立的 LongValidator 。 构造 LongValidator(Int64, Int64) 函数确保 long 正在验证的值符合最小和最大长度。 构造 LongValidator(Int64, Int64, Boolean) 函数检查最小值和最大值 Int64 ，以及验证范围是否独占。 构造 LongValidator(Int64, Int64, Boolean, Int64) 函数检查前三个参数，并检查该值是否 Int64 等于特定的分辨率值。

方法 CanValidate 确定要验证的对象类型是否与预期类型匹配。 正在验证的对象作为 方法的参数 Validate 传递。

构造函数

方法

适用于

另请参阅

• ConfigurationValidatorBase