Junfeng Zhang asks what is the longest class name in .NET.  I threw together a quick little .NET class digger and found that:

From the assemblies located at: “..\v1.1.4322\System*.dll"

C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.Windows.Forms.dll

Contains the type:

UpDownBase+UpDownButtons+UpDownButtonsAccessibleObject+DirectionButtonAccessibleObject

which is 86 characters long.

The shortest:

C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.Design.dll

Contains:

System.Design.SR

which is, of course, a length of 2

EDIT:

To add, the longest PUBLIC class is:

System.Windows.Forms.IDataGridColumnStyleEditingNotificationService

with a length of 46

4 Comments

• Junfeng Zhang said Thursday, February 5, 2004 7:53:00 PM

  Thanks for the quick dig.
  
  Yes, not out of my expectation.

• Mark Hurd said Wednesday, February 25, 2004 9:09:00 PM

  Note to your EDIT: System.GC is the shortest public class name.
  
  Using DotLisp and my extra.lisp patch: (Not all system assemblies loaded)
  
  > (for-each-type t (when (and t.IsPublic (<= t.Name.Length 3)) (prns t.FullName)))
  System.GC
  System.Security.Cryptography.DES
  System.Security.Cryptography.DSA
  System.Security.Cryptography.MD5
  System.Security.Cryptography.RC2
  System.Security.Cryptography.RSA
  System.Security.Policy.Url
  System.Uri
  System.Net.Dns
  System.Windows.Forms.Day
  System.Drawing.Pen
  
  > (for-each-type t (when (and t.IsPublic (>= t.Name.Length 39)) (prns t.FullName)))
  System.Security.Cryptography.CryptographicUnexpectedOperationException
  System.Security.Policy.ApplicationDirectoryMembershipCondition
  System.CodeDom.CodeParameterDeclarationExpressionCollection
  System.CodeDom.CodePropertySetValueReferenceExpression
  System.ComponentModel.DesignerSerializationVisibilityAttribute
  System.Diagnostics.PerformanceCounterPermissionEntryCollection
  System.Windows.Forms.IDataGridColumnStyleEditingNotificationService
  System.Windows.Forms.DataGridPreferredColumnWidthTypeConverter
  System.Xml.Serialization.XmlSerializationCollectionFixupCallback
  >
  

• Mark Hurd said Wednesday, February 25, 2004 9:14:00 PM

  David Flanagan: If you're looking at full names for PUBLIC classes
  
  System.GC
  
  is shortest at 9, and
  
  System.Windows.Forms.ComponentModel.Com2Interop.ICom2PropertyPageDisplayService
  
  is longest at 79.
  
  Again, using DotLisp:
  
  > (for-each-type t (when (and t.IsPublic (<= t.FullName.Length 11)) (prns t.FullName)))
  System.Enum
  System.Byte
  System.Char
  System.GC
  System.Guid
  System.Math
  System.Type
  System.Void
  System.Uri
  > (for-each-type t (when (and t.IsPublic (>= t.FullName.Length 69)) (prns t.FullName)))
  System.Security.Cryptography.CryptographicUnexpectedOperationException
  System.ComponentModel.Design.Serialization.DesignerSerializerAttribute
  System.ComponentModel.Design.Serialization.IDesignerSerializationManager
  System.ComponentModel.Design.Serialization.IDesignerSerializationProvider
  System.ComponentModel.Design.Serialization.IDesignerSerializationService
  System.ComponentModel.Design.Serialization.RootDesignerSerializerAttribute
  System.Security.Cryptography.X509Certificates.X509CertificateCollection
  System.Windows.Forms.ComponentModel.Com2Interop.ICom2PropertyPageDisplayService

• reifnir said Friday, August 13, 2010 10:29:30 AM

  If we're counting enums, MessageSecurityVersion has this one coming in at 103 characters long: WSSecurity10WSTrustFebruary2005WSSecureConversationFebruary2005WSSecurityPolicy11BasicSecurityProfile10 Property