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From: Michel Posseth [MCP] on 24 Feb 2010 14:14

"Family Tree Mike" <FamilyTreeMike(a)ThisOldHouse.com> schreef in bericht
news:OZKVjDVtKHA.3656(a)TK2MSFTNGP06.phx.gbl...
> On 2/24/2010 12:19 AM, Cor Ligthert[MVP] wrote:
>> Andy,
>>
>> I can not imagine a situation where you would use an existing interface
>> (from Net) except for non inheritable classes.
>>
>> If you want to create classes from already existing classes then you use
>> those classes as a base class.
>> Those then already implement those interfaces.
>>
>> It seems that somehow interfaces have blinded you.
>>
>> Cor
>>
>>
>>
>> "Andy B." <a_borka(a)sbcglobal.net> wrote in message
>> news:er6BbkLtKHA.1608(a)TK2MSFTNGP05.phx.gbl...
>>> I want to make some wise choices when making my objects. I want to add
>>> features to them, but don't feel like writing my own interfaces if
>>> they already exist. Since I don't totally know what's out there in
>>> .net 3.5sp1 as far as interfaces go, is there a simple easy way to
>>> find a list of them somewhere? I would need them from msdn if possible.
>>>
>
> System.IComparable might be an exception to this. There is often good
> reason to impliment this interface.
>
> --
> Mike

Many developers fail to grasp the importance of interfaces and don`t
leverage there full potential

> System.IComparable might be an exception to this. There is often good
> reason to impliment this interface.

Well ,,,,, what about IComparable , IComparer, ICloneable, IDisposable ,
IEnumerable and IEnumerate .... ????


regards
Michel

From: Family Tree Mike on 24 Feb 2010 16:48
On 2/24/2010 2:14 PM, Michel Posseth [MCP] wrote:
>
> "Family Tree Mike" <FamilyTreeMike(a)ThisOldHouse.com> schreef in bericht
> news:OZKVjDVtKHA.3656(a)TK2MSFTNGP06.phx.gbl...
>> On 2/24/2010 12:19 AM, Cor Ligthert[MVP] wrote:
>>> Andy,
>>>
>>> I can not imagine a situation where you would use an existing interface
>>> (from Net) except for non inheritable classes.
>>>
>>> If you want to create classes from already existing classes then you use
>>> those classes as a base class.
>>> Those then already implement those interfaces.
>>>
>>> It seems that somehow interfaces have blinded you.
>>>
>>> Cor
>>>
>>>
>>>
>>> "Andy B." <a_borka(a)sbcglobal.net> wrote in message
>>> news:er6BbkLtKHA.1608(a)TK2MSFTNGP05.phx.gbl...
>>>> I want to make some wise choices when making my objects. I want to add
>>>> features to them, but don't feel like writing my own interfaces if
>>>> they already exist. Since I don't totally know what's out there in
>>>> .net 3.5sp1 as far as interfaces go, is there a simple easy way to
>>>> find a list of them somewhere? I would need them from msdn if possible.
>>>>
>>
>> System.IComparable might be an exception to this. There is often good
>> reason to impliment this interface.
>>
>> --
>> Mike
>
> Many developers fail to grasp the importance of interfaces and don`t
> leverage there full potential
>
>> System.IComparable might be an exception to this. There is often good
>> reason to impliment this interface.
>
> Well ,,,,, what about IComparable , IComparer, ICloneable, IDisposable ,
> IEnumerable and IEnumerate .... ????
>
>
> regards
> Michel

Absolutly right. IComparable was the one that jumped out at me as obvious.

--
Mike
From: Mark Hurd on 25 Feb 2010 19:27
"Andy B." <a_borka(a)sbcglobal.net> wrote in message
news:er6BbkLtKHA.1608(a)TK2MSFTNGP05.phx.gbl...
>I want to make some wise choices when making my objects. I want to add
>features to them, but don't feel like writing my own interfaces if they
>already exist. Since I don't totally know what's out there in .net
>3.5sp1 as far as interfaces go, is there a simple easy way to find a
>list of them somewhere? I would need them from msdn if possible.

Using DotLisp I enumerated all public interfaces from these assemblies:

"Accessibility, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a"
"Microsoft.VisualBasic, Version=8.0.0.0, Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a"
"mscorlib, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089"
"System, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089"
"System.Configuration, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a"
"System.Core, Version=3.5.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089"
"System.Data, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089"
"System.Data.Linq, Version=3.5.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089"
"System.Data.SqlXml, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089"
"System.Drawing, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a"
"System.Security, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a"
"System.Transactions, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089"
"System.Windows.Forms, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089"
"System.Xml, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089"
"System.Xml.Linq, Version=3.5.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089"

ordered by the interface name:

"System.Runtime.InteropServices._Activator"
"System._AppDomain"
"System.Runtime.InteropServices._Assembly"
"System.Runtime.InteropServices._AssemblyBuilder"
"System.Runtime.InteropServices._AssemblyName"
"System.Runtime.InteropServices._Attribute"
"System.Runtime.InteropServices._ConstructorBuilder"
"System.Runtime.InteropServices._ConstructorInfo"
"System.Runtime.InteropServices._CustomAttributeBuilder"
"System.Runtime.InteropServices._EnumBuilder"
"System.Runtime.InteropServices._EventBuilder"
"System.Runtime.InteropServices._EventInfo"
"System.Runtime.InteropServices._Exception"
"System.Runtime.InteropServices._FieldBuilder"
"System.Runtime.InteropServices._FieldInfo"
"System.Runtime.InteropServices._ILGenerator"
"System.Runtime.InteropServices._LocalBuilder"
"System.Runtime.InteropServices._MemberInfo"
"System.Runtime.InteropServices._MethodBase"
"System.Runtime.InteropServices._MethodBuilder"
"System.Runtime.InteropServices._MethodInfo"
"System.Runtime.InteropServices._MethodRental"
"System.Runtime.InteropServices._Module"
"System.Runtime.InteropServices._ModuleBuilder"
"System.Runtime.InteropServices._ParameterBuilder"
"System.Runtime.InteropServices._ParameterInfo"
"System.Runtime.InteropServices._PropertyBuilder"
"System.Runtime.InteropServices._PropertyInfo"
"System.Runtime.InteropServices._SignatureHelper"
"System.Runtime.InteropServices._Thread"
"System.Runtime.InteropServices._Type"
"System.Runtime.InteropServices._TypeBuilder"
"Accessibility.CAccPropServices"
"Accessibility.IAccessible"
"Accessibility.IAccessibleHandler"
"Accessibility.IAccIdentity"
"Accessibility.IAccPropServer"
"Accessibility.IAccPropServices"
"System.Runtime.Remoting.Activation.IActivator"
"System.Runtime.InteropServices.ComTypes.IAdviseSink"
"System.IAppDomainSetup"
"System.Configuration.IApplicationSettingsProvider"
"System.Security.Policy.IApplicationTrustManager"
"System.IAsyncResult"
"System.Net.IAuthenticationModule"
"Microsoft.SqlServer.Server.IBinarySerialize"
"System.Windows.Forms.IBindableComponent"
"System.Runtime.InteropServices.ComTypes.IBindCtx"
"System.ComponentModel.IBindingList"
"System.ComponentModel.IBindingListView"
"System.Windows.Forms.IButtonControl"
"System.ComponentModel.ICancelAddNew"
"System.Net.ICertificatePolicy"
"System.ComponentModel.IChangeTracking"
"System.Runtime.Remoting.Channels.IChannel"
"System.Runtime.Remoting.Channels.IChannelDataStore"
"System.Runtime.Remoting.IChannelInfo"
"System.Runtime.Remoting.Channels.IChannelReceiver"
"System.Runtime.Remoting.Channels.IChannelReceiverHook"
"System.Runtime.Remoting.Channels.IChannelSender"
"System.Runtime.Remoting.Channels.IChannelSinkBase"
"System.Runtime.Remoting.Channels.IClientChannelSink"
"System.Runtime.Remoting.Channels.IClientChannelSinkProvider"
"System.Runtime.Remoting.Channels.IClientChannelSinkStack"
"System.Runtime.Remoting.Channels.IClientFormatterSink"
"System.Runtime.Remoting.Channels.IClientFormatterSinkProvider"
"System.Runtime.Remoting.Channels.IClientResponseChannelSinkStack"
"System.ICloneable"
"System.CodeDom.Compiler.ICodeCompiler"
"System.CodeDom.Compiler.ICodeGenerator"
"System.CodeDom.Compiler.ICodeParser"
"System.Diagnostics.ICollectData"
"System.Collections.ICollection"
"System.Collections.Generic.ICollection`1"
"System.Data.IColumnMapping"
"System.Data.IColumnMappingCollection"
"System.Windows.Forms.ComponentModel.Com2Interop.ICom2PropertyPageDisplayService"
"System.Windows.Forms.ICommandExecutor"
"System.ComponentModel.IComNativeDescriptorHandler"
"System.IComparable"
"System.IComparable`1"
"System.Collections.IComparer"
"System.Collections.Generic.IComparer`1"
"System.ComponentModel.IComponent"
"System.ComponentModel.Design.IComponentChangeService"
"System.ComponentModel.Design.IComponentDiscoveryService"
"System.Windows.Forms.IComponentEditorPageSite"
"System.ComponentModel.Design.IComponentInitializer"
"System.Windows.Forms.ComponentModel.Com2Interop.IComPropertyBrowser"
"System.Configuration.Internal.IConfigErrorInfo"
"System.Configuration.Internal.IConfigSystem"
"System.Configuration.Internal.IConfigurationManagerHelper"
"System.Configuration.Internal.IConfigurationManagerInternal"
"System.Configuration.IConfigurationSectionHandler"
"System.Configuration.IConfigurationSystem"
"System.Runtime.InteropServices.ComTypes.IConnectionPoint"
"System.Runtime.InteropServices.ComTypes.IConnectionPointContainer"
"System.Runtime.Remoting.Activation.IConstructionCallMessage"
"System.Runtime.Remoting.Activation.IConstructionReturnMessage"
"System.ComponentModel.IContainer"
"System.Windows.Forms.IContainerControl"
"System.Runtime.Remoting.Contexts.IContextAttribute"
"System.Runtime.Remoting.Contexts.IContextProperty"
"System.Runtime.Remoting.Contexts.IContextPropertyActivator"
"System.Runtime.Remoting.Contexts.IContributeClientContextSink"
"System.Runtime.Remoting.Contexts.IContributeDynamicSink"
"System.Runtime.Remoting.Contexts.IContributeEnvoySink"
"System.Runtime.Remoting.Contexts.IContributeObjectSink"
"System.Runtime.Remoting.Contexts.IContributeServerContextSink"
"System.IConvertible"
"System.Net.ICredentialPolicy"
"System.Net.ICredentials"
"System.Net.ICredentialsByHost"
"System.Security.Cryptography.ICryptoTransform"
"System.Security.Cryptography.ICspAsymmetricAlgorithm"
"System.Windows.Forms.ICurrencyManagerProvider"
"System.Runtime.InteropServices.ICustomAdapter"
"System.Reflection.ICustomAttributeProvider"
"System.Runtime.InteropServices.ICustomFactory"
"System.ICustomFormatter"
"System.Runtime.InteropServices.ICustomMarshaler"
"System.ComponentModel.ICustomTypeDescriptor"
"System.Data.IDataAdapter"
"System.ComponentModel.IDataErrorInfo"
"System.Windows.Forms.IDataGridColumnStyleEditingNotificationService"
"System.Windows.Forms.IDataGridEditingService"
"System.Windows.Forms.IDataGridViewEditingCell"
"System.Windows.Forms.IDataGridViewEditingControl"
"System.Runtime.InteropServices.ComTypes.IDataObject"
"System.Windows.Forms.IDataObject"
"System.Data.IDataParameter"
"System.Data.IDataParameterCollection"
"System.Data.IDataReader"
"System.Data.IDataRecord"
"System.Data.IDbCommand"
"System.Data.IDbConnection"
"System.Data.IDbDataAdapter"
"System.Data.IDbDataParameter"
"System.Data.IDbTransaction"
"System.Runtime.Serialization.IDeserializationCallback"
"System.ComponentModel.Design.IDesigner"
"System.ComponentModel.Design.IDesignerEventService"
"System.ComponentModel.Design.IDesignerFilter"
"System.ComponentModel.Design.IDesignerHost"
"System.ComponentModel.Design.IDesignerHostTransactionState"
"System.ComponentModel.Design.Serialization.IDesignerLoaderHost"
"System.ComponentModel.Design.Serialization.IDesignerLoaderHost2"
"System.ComponentModel.Design.Serialization.IDesignerLoaderService"
"System.ComponentModel.Design.IDesignerOptionService"
"System.ComponentModel.Design.Serialization.IDesignerSerializationManager"
"System.ComponentModel.Design.Serialization.IDesignerSerializationProvider"
"System.ComponentModel.Design.Serialization.IDesignerSerializationService"
"System.Drawing.IDeviceContext"
"System.Collections.IDictionary"
"System.Collections.Generic.IDictionary`2"
"System.Collections.IDictionaryEnumerator"
"System.ComponentModel.Design.IDictionaryService"
"System.IDisposable"
"System.Windows.Forms.IDropTarget"
"System.Transactions.IDtcTransaction"
"System.Runtime.Remoting.Contexts.IDynamicMessageSink"
"System.Runtime.Remoting.Contexts.IDynamicProperty"
"System.ComponentModel.IEditableObject"
"System.Transactions.IEnlistmentNotification"
"System.Runtime.InteropServices.ComTypes.IEnumConnectionPoints"
"System.Runtime.InteropServices.ComTypes.IEnumConnections"
"System.Collections.IEnumerable"
"System.Collections.Generic.IEnumerable`1"
"System.Collections.IEnumerator"
"System.Collections.Generic.IEnumerator`1"
"System.Runtime.InteropServices.ComTypes.IEnumFORMATETC"
"System.Runtime.InteropServices.ComTypes.IEnumMoniker"
"System.Runtime.InteropServices.ComTypes.IEnumSTATDATA"
"System.Runtime.InteropServices.ComTypes.IEnumString"
"System.Runtime.InteropServices.ComTypes.IEnumVARIANT"
"System.Runtime.Remoting.IEnvoyInfo"
"System.Collections.IEqualityComparer"
"System.Collections.Generic.IEqualityComparer`1"
"System.IEquatable`1"
"System.ComponentModel.Design.IEventBindingService"
"System.Security.IEvidenceFactory"
"System.Data.Linq.IExecuteResult"
"System.Runtime.InteropServices.Expando.IExpando"
"System.ComponentModel.Design.IExtenderListService"
"System.ComponentModel.IExtenderProvider"
"System.ComponentModel.Design.IExtenderProviderService"
"System.Windows.Forms.IFeatureSupport"
"System.Runtime.Serialization.Formatters.IFieldInfo"
"System.Windows.Forms.IFileReaderService"
"System.IFormatProvider"
"System.IFormattable"
"System.Runtime.Serialization.IFormatter"
"System.Runtime.Serialization.IFormatterConverter"
"System.Data.Linq.IFunctionResult"
"System.Linq.IGrouping`2"
"System.Collections.IHashCodeProvider"
"System.Xml.IHasXmlNode"
"System.ComponentModel.Design.IHelpService"
"System.Security.Principal.IIdentity"
"System.Security.Policy.IIdentityPermissionFactory"
"System.ComponentModel.Design.IInheritanceService"
"System.ComponentModel.IIntellisenseBuilder"
"System.Configuration.Internal.IInternalConfigClientHost"
"System.Configuration.Internal.IInternalConfigConfigurationFactory"
"System.Configuration.Internal.IInternalConfigHost"
"System.Configuration.Internal.IInternalConfigRecord"
"System.Configuration.Internal.IInternalConfigRoot"
"System.Configuration.Internal.IInternalConfigSettingsFactory"
"System.Configuration.Internal.IInternalConfigSystem"
"System.Runtime.Remoting.Lifetime.ILease"
"System.Collections.IList"
"System.Collections.Generic.IList`1"
"System.ComponentModel.IListSource"
"System.Runtime.Remoting.Messaging.ILogicalThreadAffinative"
"System.Linq.ILookup`2"
"System.Security.Policy.IMembershipCondition"
"System.ComponentModel.Design.IMenuCommandService"
"System.Runtime.Remoting.Messaging.IMessage"
"System.Runtime.Remoting.Messaging.IMessageCtrl"
"System.Windows.Forms.IMessageFilter"
"System.Runtime.Remoting.Messaging.IMessageSink"
"System.Runtime.Remoting.Messaging.IMethodCallMessage"
"System.Runtime.Remoting.Messaging.IMethodMessage"
"System.Runtime.Remoting.Messaging.IMethodReturnMessage"
"System.Runtime.InteropServices.ComTypes.IMoniker"
"System.Data.Linq.IMultipleResults"
"System.ComponentModel.Design.Serialization.INameCreationService"
"System.ComponentModel.INestedContainer"
"System.ComponentModel.INestedSite"
"System.IO.IsolatedStorage.INormalizeForIsolatedStorage"
"System.ComponentModel.INotifyPropertyChanged"
"System.ComponentModel.INotifyPropertyChanging"
"System.Data.SqlTypes.INullable"
"System.Runtime.Remoting.IObjectHandle"
"System.Runtime.Serialization.IObjectReference"
"System.Collections.Specialized.IOrderedDictionary"
"System.Linq.IOrderedEnumerable`1"
"System.Linq.IOrderedQueryable"
"System.Linq.IOrderedQueryable`1"
"System.Security.IPermission"
"System.Configuration.IPersistComponentSettings"
"System.Runtime.InteropServices.ComTypes.IPersistFile"
"System.Security.Principal.IPrincipal"
"System.Transactions.IPromotableSinglePhaseNotification"
"System.Drawing.Design.IPropertyValueUIService"
"System.Linq.IQueryable"
"System.Linq.IQueryable`1"
"System.Linq.IQueryProvider"
"System.ComponentModel.IRaiseItemChangedEvents"
"System.ComponentModel.Design.IReferenceService"
"System.Reflection.IReflect"
"System.Runtime.InteropServices.IRegistrationServices"
"System.Security.Cryptography.Xml.IRelDecryptor"
"System.Runtime.Remoting.Messaging.IRemotingFormatter"
"System.Runtime.Remoting.IRemotingTypeInfo"
"System.Resources.IResourceReader"
"System.ComponentModel.Design.IResourceService"
"System.Resources.IResourceWriter"
"System.ComponentModel.IRevertibleChangeTracking"
"System.ComponentModel.Design.IRootDesigner"
"System.Windows.Forms.PropertyGridInternal.IRootGridEntry"
"System.Runtime.InteropServices.ComTypes.IRunningObjectTable"
"System.Runtime.Remoting.Channels.ISecurableChannel"
"System.Security.ISecurityEncodable"
"System.Security.ISecurityPolicyEncodable"
"System.ComponentModel.Design.ISelectionService"
"System.Runtime.Serialization.ISerializable"
"System.Runtime.Serialization.ISerializationSurrogate"
"System.Runtime.Remoting.Channels.IServerChannelSink"
"System.Runtime.Remoting.Channels.IServerChannelSinkProvider"
"System.Runtime.Remoting.Channels.IServerChannelSinkStack"
"System.Runtime.Remoting.Channels.IServerFormatterSinkProvider"
"System.Runtime.Remoting.Channels.IServerResponseChannelSinkStack"
"System.ComponentModel.Design.IServiceContainer"
"System.IServiceProvider"
"System.Configuration.ISettingsProviderService"
"System.Transactions.ISimpleTransactionSuperior"
"System.Transactions.ISinglePhaseNotification"
"System.Data.Linq.ISingleResult`1"
"System.ComponentModel.ISite"
"System.Runtime.Serialization.Formatters.ISoapMessage"
"System.Runtime.Remoting.Metadata.W3cXsd2001.ISoapXsd"
"System.Runtime.Remoting.Lifetime.ISponsor"
"System.Security.IStackWalk"
"System.Runtime.InteropServices.ComTypes.IStream"
"System.Runtime.CompilerServices.IStrongBox"
"System.ComponentModel.ISupportInitialize"
"System.ComponentModel.ISupportInitializeNotification"
"System.Runtime.Serialization.ISurrogateSelector"
"System.Diagnostics.SymbolStore.ISymbolBinder"
"System.Diagnostics.SymbolStore.ISymbolBinder1"
"System.Diagnostics.SymbolStore.ISymbolDocument"
"System.Diagnostics.SymbolStore.ISymbolDocumentWriter"
"System.Diagnostics.SymbolStore.ISymbolMethod"
"System.Diagnostics.SymbolStore.ISymbolNamespace"
"System.Diagnostics.SymbolStore.ISymbolReader"
"System.Diagnostics.SymbolStore.ISymbolScope"
"System.Diagnostics.SymbolStore.ISymbolVariable"
"System.Diagnostics.SymbolStore.ISymbolWriter"
"System.ComponentModel.ISynchronizeInvoke"
"System.Data.Linq.ITable"
"System.Data.ITableMapping"
"System.Data.ITableMappingCollection"
"System.Drawing.Design.IToolboxItemProvider"
"System.Drawing.Design.IToolboxService"
"System.Drawing.Design.IToolboxUser"
"System.Runtime.Remoting.Services.ITrackingHandler"
"System.Transactions.ITransactionPromoter"
"System.Runtime.Remoting.Channels.ITransportHeaders"
"System.ComponentModel.Design.ITreeDesigner"
"System.Runtime.InteropServices.ComTypes.ITypeComp"
"System.ComponentModel.ITypeDescriptorContext"
"System.ComponentModel.Design.ITypeDescriptorFilterService"
"System.ComponentModel.Design.ITypeDiscoveryService"
"System.ComponentModel.ITypedList"
"System.Runtime.InteropServices.ComTypes.ITypeInfo"
"System.Runtime.InteropServices.ComTypes.ITypeInfo2"
"System.Runtime.InteropServices.ComTypes.ITypeLib"
"System.Runtime.InteropServices.ComTypes.ITypeLib2"
"System.Runtime.InteropServices.ITypeLibConverter"
"System.Runtime.InteropServices.ITypeLibExporterNameProvider"
"System.Runtime.InteropServices.ITypeLibExporterNotifySink"
"System.Runtime.InteropServices.ITypeLibImporterNotifySink"
"System.ComponentModel.Design.ITypeResolutionService"
"System.Windows.Forms.Design.IUIService"
"System.Security.Permissions.IUnrestrictedPermission"
"Microsoft.VisualBasic.CompilerServices.IVbHost"
"System.Net.IWebProxy"
"System.Net.IWebProxyScript"
"System.Net.IWebRequestCreate"
"System.Windows.Forms.IWin32Window"
"System.Windows.Forms.Design.IWindowsFormsEditorService"
"System.Windows.Forms.IWindowTarget"
"System.Xml.IXmlLineInfo"
"System.Xml.IXmlNamespaceResolver"
"System.Xml.Schema.IXmlSchemaInfo"
"System.Xml.Serialization.IXmlSerializable"
"System.Xml.Serialization.IXmlTextParser"
"System.Xml.XPath.IXPathNavigable"
"System.Xml.Xsl.IXsltContextFunction"
"System.Xml.Xsl.IXsltContextVariable"
"System.Runtime.InteropServices.UCOMIBindCtx"
"System.Runtime.InteropServices.UCOMIConnectionPoint"
"System.Runtime.InteropServices.UCOMIConnectionPointContainer"
"System.Runtime.InteropServices.UCOMIEnumConnectionPoints"
"System.Runtime.InteropServices.UCOMIEnumConnections"
"System.Runtime.InteropServices.UCOMIEnumMoniker"
"System.Runtime.InteropServices.UCOMIEnumString"
"System.Runtime.InteropServices.UCOMIEnumVARIANT"
"System.Runtime.InteropServices.UCOMIMoniker"
"System.Runtime.InteropServices.UCOMIPersistFile"
"System.Runtime.InteropServices.UCOMIRunningObjectTable"
"System.Runtime.InteropServices.UCOMIStream"
"System.Runtime.InteropServices.UCOMITypeComp"
"System.Runtime.InteropServices.UCOMITypeInfo"
"System.Runtime.InteropServices.UCOMITypeLib"

It is clearly more than you wanted to know, but I thought I should post
it anyway.

--
Regards,
Mark Hurd, B.Sc.(Ma.) (Hons.)

From: James Hahn on 25 Feb 2010 21:04
It is worthwhile using an existing interface if it's suitable. But the
process would operate the other way around to the way you seem to be
thinking. You would implement an interface in your objects if you needed
the functionality that you get by creating that implementation.

That is, if you would like the functionality of sorting your objects when
they are part of an array, implement IComparable. As soon as you do that,
the sorting functionality that already exists for the array class is
available to (or at least makes sense for) arrays of your objects. If you
have no need to sort your objects in any particular order, even if you are
handling them in arrays, don't implement the interface.

So what you do or don't implement in your objects is going to be driven by
the functionality you would like to use in other objects when they are
manipulating or referencing or somehow handling your objects.

So there's not really a need to know all the interfaces. But you do need to
look at what framework objects you are using with your objects, check what
interfaces the support, and see whether implementing an interface for your
objects is going to give you more or better functionality when you use them
with those framework objects.

"Andy B." <a_borka(a)sbcglobal.net> wrote in message
news:er6BbkLtKHA.1608(a)TK2MSFTNGP05.phx.gbl...
>I want to make some wise choices when making my objects. I want to add
>features to them, but don't feel like writing my own interfaces if they
>already exist. Since I don't totally know what's out there in .net 3.5sp1
>as far as interfaces go, is there a simple easy way to find a list of them
>somewhere? I would need them from msdn if possible.
>

From: Andy B. on 26 Feb 2010 06:45
I thought you had to actually write the code for the interface. If you
implement IComparable, then you need to write your own custom code to make
the methods work.
"James Hahn" <jhahn(a)yahoo.com> wrote in message
news:evgEMgotKHA.4332(a)TK2MSFTNGP05.phx.gbl...
> It is worthwhile using an existing interface if it's suitable. But the
> process would operate the other way around to the way you seem to be
> thinking. You would implement an interface in your objects if you needed
> the functionality that you get by creating that implementation.
>
> That is, if you would like the functionality of sorting your objects when
> they are part of an array, implement IComparable. As soon as you do that,
> the sorting functionality that already exists for the array class is
> available to (or at least makes sense for) arrays of your objects. If you
> have no need to sort your objects in any particular order, even if you are
> handling them in arrays, don't implement the interface.
>
> So what you do or don't implement in your objects is going to be driven by
> the functionality you would like to use in other objects when they are
> manipulating or referencing or somehow handling your objects.
>
> So there's not really a need to know all the interfaces. But you do need
> to look at what framework objects you are using with your objects, check
> what interfaces the support, and see whether implementing an interface for
> your objects is going to give you more or better functionality when you
> use them with those framework objects.
>
> "Andy B." <a_borka(a)sbcglobal.net> wrote in message
> news:er6BbkLtKHA.1608(a)TK2MSFTNGP05.phx.gbl...
>>I want to make some wise choices when making my objects. I want to add
>>features to them, but don't feel like writing my own interfaces if they
>>already exist. Since I don't totally know what's out there in .net 3.5sp1
>>as far as interfaces go, is there a simple easy way to find a list of them
>>somewhere? I would need them from msdn if possible.
>>
>


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