Provides validation of an Int64 value.
System.Configuration.ConfigurationValidatorBase
System.Configuration.LongValidator
Namespace: System.Configuration
Assembly: System.Configuration (in System.Configuration.dll)
Public Class LongValidator _ Inherits ConfigurationValidatorBase
public class LongValidator : ConfigurationValidatorBase
public ref class LongValidator : public ConfigurationValidatorBase
type LongValidator = class inherit ConfigurationValidatorBase end
The LongValidator type exposes the following members.
| Name | Description | |
|---|---|---|
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LongValidator(Int64, Int64) | Initializes a new instance of the LongValidator class. |
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LongValidator(Int64, Int64, Boolean) | Initializes a new instance of the LongValidator class. |
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LongValidator(Int64, Int64, Boolean, Int64) | Initializes a new instance of the LongValidator class. |
| Name | Description | |
|---|---|---|
|
CanValidate | Determines whether the type of the object can be validated. (Overrides ConfigurationValidatorBase.CanValidate(Type).) |
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Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
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Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
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GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
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GetType | Gets the Type of the current instance. (Inherited from Object.) |
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MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
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ToString | Returns a string that represents the current object. (Inherited from Object.) |
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Validate | 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.
Imports System 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
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(); } } }
.NET Framework
Supported in: 4, 3.5, 3.0, 2.0.NET Framework Client Profile
Supported in: 4, 3.5 SP1Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.