LongValidator Class


Provides validation of an Int64 value.

Namespace:   System.Configuration
Assembly:  System.Configuration (in System.Configuration.dll)

public class LongValidator : ConfigurationValidatorBase

System_CAPS_pubmethodLongValidator(Int64, Int64)

Initializes a new instance of the LongValidator class.

System_CAPS_pubmethodLongValidator(Int64, Int64, Boolean)

Initializes a new instance of the LongValidator class.

System_CAPS_pubmethodLongValidator(Int64, Int64, Boolean, Int64)

Initializes a new instance of the LongValidator class.


Determines whether the type of the object can be validated.(Overrides ConfigurationValidatorBase.CanValidate(Type).)


Determines whether the specified object is equal to the current object.(Inherited from Object.)


Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)


Serves as the default hash function. (Inherited from Object.)


Gets the Type of the current instance.(Inherited from Object.)


Creates a shallow copy of the current Object.(Inherited from Object.)


Returns a string that represents the current object.(Inherited from Object.)


Determines whether the value of an object is valid.(Overrides ConfigurationValidatorBase.Validate(Object).)

The LongValidator is used to ensure a long (a 64-bit signed integer) meets specific criteria. The criteria for validation is established when an instance of the LongValidator class is created. The LongValidator(Int64, Int64) constructor ensures that the long value that is being validated adheres to both a minimum and a maximum length. The LongValidator(Int64, Int64, Boolean) constructor checks both the minimum and maximum Int64 values, as well as whether the validation range is exclusive. The LongValidator(Int64, Int64, Boolean, Int64) constructor checks the previous three parameters and also checks whether the Int64 value is equal to a specific resolution value.

The CanValidate method determines whether the object type being validated matches the expected type. The object being validated is passed as a parameter of the Validate method.

The following code example demonstrates how to use the LongValidator type.

using System;
using System.Configuration;

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

      // 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}",

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

      // Display and wait

.NET Framework
Available since 2.0

Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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