LongValidator Class
Provides validation of an Int64 value.
Assembly: System.Configuration (in System.Configuration.dll)
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
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.