## On this page # Class NCombinationContact Last update: 16.07.2025 Namespace: [VM.Managed.DAFUL.Contact](VM.Managed.DAFUL.Contact.md) Assembly: VMDCt.dll This base class is to represent the contact of n-combination. ```csharp public class NCombinationContact : MultipleContactBase, IObservableObject, IDisposableObject, ILinkable, ILinkContainerEvent, IVerifiable, IHistoryObjectSerializable, IAttributeContainer, IContainer, IEntity, IEntityBase, IObjectBase, IObject, ILinkContainer, IOwned, IHasID, IEventProvider, IHasKeyObject, IHasName, IEnabled, IHasComment, IVisible, IDocumentOwner, INamed, INavigatorItem, IVisible, IMultiChangable, IHasProperty, IGroup, IEnableForSimulationScenario, IDraw, IDrawIcon, ITemplateObject, IArgument, IReportable, IReferencable, IEntityRelation, IGapSupport ``` #### Inheritance [object](https://learn.microsoft.com/dotnet/api/system.object) ← ObservableObject ← LinkableBase ← ObjectBase ← Object<EntityEventCore> ← ContainerObject<EntityEventCore> ← EntityBase ← Entity<PropertyMultiContact> ← [Contact<PropertyMultiContact>](VM.Managed.DAFUL.Contact.Contact-1.md) ← [MultipleContactBase](VM.Managed.DAFUL.Contact.MultipleContactBase.md) ← [NCombinationContact](VM.Managed.DAFUL.Contact.NCombinationContact.md) #### Implements IObservableObject, IDisposableObject, ILinkable, ILinkContainerEvent, IVerifiable, IHistoryObjectSerializable, IAttributeContainer, IContainer, IEntity, IEntityBase, IObjectBase, IObject, ILinkContainer, IOwned, IHasID, IEventProvider, IHasKeyObject, IHasName, IEnabled, IHasComment, IVisible, IDocumentOwner, INamed, INavigatorItem, IVisible, IMultiChangable, IHasProperty, IGroup, IEnableForSimulationScenario, IDraw, IDrawIcon, ITemplateObject, IArgument, IReportable, IReferencable, IEntityRelation, IGapSupport #### Inherited Members [MultipleContactBase.UpdateIcon()](VM.Managed.DAFUL.Contact.MultipleContactBase.md#VM_Managed_DAFUL_Contact_MultipleContactBase_UpdateIcon), [MultipleContactBase.IsUseContactType(IContactable, IContactable, MultiContactType)](VM.Managed.DAFUL.Contact.MultipleContactBase.md#VM_Managed_DAFUL_Contact_MultipleContactBase_IsUseContactType_VM_Managed_DAFUL_IContactable_VM_Managed_DAFUL_IContactable_VM_Managed_DAFUL_Contact_MultiContactType_), [MultipleContactBase.IsUseContactType(IContactable, IContactable, MultiContactType, ref bool)](VM.Managed.DAFUL.Contact.MultipleContactBase.md#VM_Managed_DAFUL_Contact_MultipleContactBase_IsUseContactType_VM_Managed_DAFUL_IContactable_VM_Managed_DAFUL_IContactable_VM_Managed_DAFUL_Contact_MultiContactType_System_Boolean__), [MultipleContactBase.MultiContactType](VM.Managed.DAFUL.Contact.MultipleContactBase.md#VM_Managed_DAFUL_Contact_MultipleContactBase_MultiContactType), [MultipleContactBase.ReportTypeImpl](VM.Managed.DAFUL.Contact.MultipleContactBase.md#VM_Managed_DAFUL_Contact_MultipleContactBase_ReportTypeImpl), [Contact<PropertyMultiContact>.UpdateIcon()](VM.Managed.DAFUL.Contact.Contact-1.md#VM_Managed_DAFUL_Contact_Contact_1_UpdateIcon), [Contact<PropertyMultiContact>.Draw(Canvas)](VM.Managed.DAFUL.Contact.Contact-1.md#VM_Managed_DAFUL_Contact_Contact_1_Draw_VM_CAD_Kernel_Render_Canvas_), [Contact<PropertyMultiContact>.ReDraw()](VM.Managed.DAFUL.Contact.Contact-1.md#VM_Managed_DAFUL_Contact_Contact_1_ReDraw), [Contact<PropertyMultiContact>.WriteTemplateImpl(XmlWriter)](VM.Managed.DAFUL.Contact.Contact-1.md#VM_Managed_DAFUL_Contact_Contact_1_WriteTemplateImpl_System_Xml_XmlWriter_), [Contact<PropertyMultiContact>.ReadTemplateImpl(XmlReader)](VM.Managed.DAFUL.Contact.Contact-1.md#VM_Managed_DAFUL_Contact_Contact_1_ReadTemplateImpl_System_Xml_XmlReader_), [Contact<PropertyMultiContact>.LinkRequestUpdate(object, LinkEventArgs)](VM.Managed.DAFUL.Contact.Contact-1.md#VM_Managed_DAFUL_Contact_Contact_1_LinkRequestUpdate_System_Object_VM_Managed_LinkEventArgs_), [Contact<PropertyMultiContact>.LinkRequestDestroy(object, LinkEventArgs)](VM.Managed.DAFUL.Contact.Contact-1.md#VM_Managed_DAFUL_Contact_Contact_1_LinkRequestDestroy_System_Object_VM_Managed_LinkEventArgs_), [Contact<PropertyMultiContact>.HasLayerExplicitly](VM.Managed.DAFUL.Contact.Contact-1.md#VM_Managed_DAFUL_Contact_Contact_1_HasLayerExplicitly), [Contact<PropertyMultiContact>.Hide](VM.Managed.DAFUL.Contact.Contact-1.md#VM_Managed_DAFUL_Contact_Contact_1_Hide), [Contact<PropertyMultiContact>.ReferenceType](VM.Managed.DAFUL.Contact.Contact-1.md#VM_Managed_DAFUL_Contact_Contact_1_ReferenceType), [Contact<PropertyMultiContact>.ArgumentType](VM.Managed.DAFUL.Contact.Contact-1.md#VM_Managed_DAFUL_Contact_Contact_1_ArgumentType), [Contact<PropertyMultiContact>.ReportTypeImpl](VM.Managed.DAFUL.Contact.Contact-1.md#VM_Managed_DAFUL_Contact_Contact_1_ReportTypeImpl), Entity<PropertyMultiContact>.Initialize(Unit.ConvertFactor), Entity<PropertyMultiContact>.GetUnnamedObjectName(object), Entity<PropertyMultiContact>.FindLocal(string), Entity<PropertyMultiContact>.Property, EntityBase.Initialize(Unit.ConvertFactor), EntityBase.SetOldNameWithNewEntity(ObjectBase, ObjectBase), EntityBase.PropertyRequestUpdate(object, LinkEventArgs), EntityBase.OnDeserializationForAttribute(), EntityBase.OnUpdatePropertyImpl(Property, LinkEventArgs), EntityBase.LinkRequestDestroying(object, LinkEventArgs), EntityBase.GetModelNavigatorInformationImpl(XmlDocument, XmlElement, bool), EntityBase.FixUp(ObjectBase), EntityBase.FindLocal(string), EntityBase.WriteTemplateImpl(XmlWriter), EntityBase.ReadTemplateImpl(XmlReader), EntityBase.LinkAddedToDocument(object, AddToDocEventArgs), EntityBase.OnDeserialization(object), EntityBase.Name, EntityBase.FullName, EntityBase.NonSymmetricName, EntityBase.DisplayName, EntityBase.IsEnabled, EntityBase.Comment, EntityBase.HasLayerExplicitly, EntityBase.UntypedProperty, EntityBase.IsFileProperty, EntityBase.Layer, EntityBase.IsVisible, ContainerObject<EntityEventCore>.Find(string), ContainerObject<EntityEventCore>.FindLocal(string), ContainerObject<EntityEventCore>.GetUnnamedObjectName(object), ContainerObject<EntityEventCore>.GetNewEntityName(string), ContainerObject<EntityEventCore>.GetNewEntityName(string, bool, int), ContainerObject<EntityEventCore>.GetNewEntityName(string, bool, int, int), Object<EntityEventCore>.GetKey(), Object<EntityEventCore>.Initialize(Unit.ConvertFactor), Object<EntityEventCore>.SetIconColor(Canvas), Object<EntityEventCore>.OnDeserialization(object), Object<EntityEventCore>.CustomGetObjectData(SerializationInfo, StreamingContext), Object<EntityEventCore>.RollbackEvent(), Object<EntityEventCore>.OnDeserializedCore(object), Object<EntityEventCore>.Key, Object<EntityEventCore>.UntypedEventCore, Object<EntityEventCore>.EventCore, Object<EntityEventCore>.Attributes, ObjectBase.ReplaceEventCore(ObjectEventCore), ObjectBase.SetModifiedCore(ModifiedResult.ModifiedType), ObjectBase.AddPostDeserialize(StreamingContext), ObjectBase.LinkAddedToDocumentCore(IOwned, bool), ObjectBase.SetModified(ModifiedResult.ModifiedType), ObjectBase.SetModified(), ObjectBase.SetModified(ModifiedResult.ModifiedType, IDocument), ObjectBase.DestroyObject(object, LinkEventArgs), ObjectBase.DestroyObject(DestroyEventArgs), ObjectBase.DestroyObject(), ObjectBase.Initialize(Unit.ConvertFactor), ObjectBase.FixUp(ObjectBase), ObjectBase.DoWorkAfterUpdateContents(), ObjectBase.SetOldNameWithNewEntity(ObjectBase, ObjectBase), ObjectBase.SetIconColor(Canvas), ObjectBase.RemoveFromCreatedList(), ObjectBase.PostAddToDocument(), ObjectBase.PostRemoveFromDocument(Document), ObjectBase.GetArgumentList(LinkedList<ObjectBase>), ObjectBase.ResetInvalidEntity(), ObjectBase.OnDeserialization(object), ObjectBase.IsSerializableEvent(Delegate), ObjectBase.CustomGetObjectData(SerializationInfo, StreamingContext), ObjectBase.CheckAndUpdateLink(HashSet<ObjectBase>), ObjectBase.Verify(VerifiedResult), ObjectBase.ConnectProxy(), ObjectBase.RollbackEvent(), ObjectBase.LinkRequestUpdating(object, LinkEventArgs), ObjectBase.LinkRequestUpdate(object, LinkEventArgs), ObjectBase.LinkRequestDestroying(object, LinkEventArgs), ObjectBase.LinkRequestDestroy(object, LinkEventArgs), ObjectBase.LinkAddedToDocument(object, AddToDocEventArgs), ObjectBase.LinkRemovedFromDocument(object, RemoveFromDocEventArgs), ObjectBase.DisposeManagedResources(), ObjectBase.GetDestroyEventExtraData(), ObjectBase.OnLinkReserved(ILink, object, EventArgs), ObjectBase.CreateEntityWhenUpdateContents(Action), ObjectBase.GetObjectByKey(UIntPtr), ObjectBase.FindObjectOnXmlDeserialize(string), ObjectBase.UpdateContents(XmlReader, ObjectBase, string), ObjectBase.UpdateContents(XmlReader, ObjectBase), ObjectBase.UpdateContents(string, string), ObjectBase.UpdateContents(string), ObjectBase.SetFlagWhenXMLFile(string, bool), ObjectBase.IsEqualArray<T>(T\[\], T\[\]), ObjectBase.IsEqualList(List<double>, List<double>), ObjectBase.SetContainer(IOwned, bool), ObjectBase.GetTargetListForUpdate(), ObjectBase.SkipUpdateObjectImpl(), ObjectBase.raise\_OnUpdating(object, LinkEventArgs), ObjectBase.raise\_OnUpdate(object, LinkEventArgs), ObjectBase.raise\_OnDestroying(object, LinkEventArgs), ObjectBase.raise\_OnDestroy(object, LinkEventArgs), ObjectBase.raise\_Destroying(object, Identifier), ObjectBase.raise\_OnAdded(object, AddToDocEventArgs), ObjectBase.raise\_OnRemoved(object, RemoveFromDocEventArgs), ObjectBase.raise\_OnContentsUpdated(object, EventArgs), ObjectBase.Dispose(bool), ObjectBase.SkipModified, ObjectBase.ClearChildInfoBeforeDeserialize, ObjectBase.KeyImpl, ObjectBase.ID, ObjectBase.TopologyEntityTypeName, ObjectBase.ObjectStateForCircularError, ObjectBase.ObjectState, ObjectBase.IsChildExternable, ObjectBase.IsExternable, ObjectBase.Container, ObjectBase.Owner, ObjectBase.Document, ObjectBase.UntypedEventCore, ObjectBase.KernelKey, ObjectBase.Key, ObjectBase.OnContentsUpdated, ObjectBase.OnRemoved, ObjectBase.OnAdded, ObjectBase.Destroying, ObjectBase.OnDestroy, ObjectBase.OnDestroying, ObjectBase.OnUpdate, ObjectBase.OnUpdating, LinkableBase.OnDeserialization(object), ObservableObject.Dispose(), ObservableObject.RaisePropertyChanged(string), ObservableObject.RaisePropertyChanged(string, object, object), ObservableObject.Dispose(bool), ObservableObject.DisposeManagedResources(), ObservableObject.DisposeUnmanagedResources(), ObservableObject.IsDisposed, ObservableObject.TryDisposing, ObservableObject.Disposed, ObservableObject.Disposing, ObservableObject.PropertyChanged #### Extension Methods [LinkPropertyItemCache.GetLinkProperties(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkProperties_System_Object_VM_Models_Pre_LinkPropertyType_), [LinkPropertyItemCache.GetLinkPropertiesAndValues(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkPropertiesAndValues_System_Object_VM_Models_Pre_LinkPropertyType_), [LinkPropertyItemCache.GetLinkedObjects<T>(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkedObjects__1_System_Object_VM_Models_Pre_LinkPropertyType_) ## Constructors ### NCombinationContact() Initializes a new instance of the class. ```csharp public NCombinationContact() ``` ### NCombinationContact(string) Initializes a new instance of the class. ```csharp public NCombinationContact(string strName) ``` #### Parameters `strName` [string](https://learn.microsoft.com/dotnet/api/system.string) Name of the contact. ## Properties ### ArgumentType Gets the type of the argument ```csharp public override ArgumentTypes ArgumentType { get; } ``` #### Property Value ArgumentTypes ### Geometries Gets or sets the base geometires. ```csharp public MultipleContactInfo[] Geometries { get; set; } ``` #### Property Value [MultipleContactInfo](VM.Managed.DAFUL.Contact.MultipleContactInfo.md)\[\] ## Methods ### Draw(Canvas) Draws the icon. ```csharp public override void Draw(Canvas canvas) ``` #### Parameters `canvas` Canvas The canvas has icon information. ### GetModelNavigatorInformationImpl(XmlDocument, XmlElement, bool) Gets the object information for model navigator \[implementation\]. ```csharp protected override bool GetModelNavigatorInformationImpl(XmlDocument xmlDom, XmlElement xmlEle, bool bHasChild) ``` #### Parameters `xmlDom` [XmlDocument](https://learn.microsoft.com/dotnet/api/system.xml.xmldocument) The XmlDocument for object. `xmlEle` [XmlElement](https://learn.microsoft.com/dotnet/api/system.xml.xmlelement) The XmlElement for object. `bHasChild` [bool](https://learn.microsoft.com/dotnet/api/system.boolean) if set to `true` \[has child\]. #### Returns [bool](https://learn.microsoft.com/dotnet/api/system.boolean) `true` if success; otherwise, `false`. ### IsValidContact(IContactable\[\], MultiContactType, ref Dictionary<IContactable, List<IContactable>>) Determines whether the contact is valid. ```csharp public static bool IsValidContact(IContactable[] lstGeom, MultiContactType type, ref Dictionary> dic) ``` #### Parameters `lstGeom` IContactable\[\] The object. `type` [MultiContactType](VM.Managed.DAFUL.Contact.MultiContactType.md) The type. `dic` [Dictionary](https://learn.microsoft.com/dotnet/api/system.collections.generic.dictionary-2)<IContactable, [List](https://learn.microsoft.com/dotnet/api/system.collections.generic.list-1)<IContactable>> The create pair. #### Returns [bool](https://learn.microsoft.com/dotnet/api/system.boolean) `true` if the specified object is interface; otherwise, `false`. ### LinkRequestUpdate(object, LinkEventArgs) Request for update the linked object. ```csharp protected override void LinkRequestUpdate(object objNotifier, LinkEventArgs arg) ``` #### Parameters `objNotifier` [object](https://learn.microsoft.com/dotnet/api/system.object) The linked object. `arg` LinkEventArgs The instance containing the event data. ### OnDeserialization(object) Called when \[deserialization\]. ```csharp protected override void OnDeserialization(object sender) ``` #### Parameters `sender` [object](https://learn.microsoft.com/dotnet/api/system.object) The sender. ### OnLinkReserved(ILink, object, EventArgs) ```csharp protected override void OnLinkReserved(ILink link, object objNotifier, EventArgs arg) ``` #### Parameters `link` ILink `objNotifier` [object](https://learn.microsoft.com/dotnet/api/system.object) `arg` [EventArgs](https://learn.microsoft.com/dotnet/api/system.eventargs)