## On this page # Class TSpringDamper Last update: 16.07.2025 Namespace: [VM.Managed.DAFUL.Force](VM.Managed.DAFUL.Force.md) Assembly: VMDFB.dll This class is to represent the spring damper force. ```csharp public class TSpringDamper : Force, 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, IDraw, IDrawIcon, IReferencable, ITransformable, IConnector, IEntityRelation, IGenerable, IArgument, IReportable, IFlip, IHasReplaceableEntity, IEnableForSimulationScenario, ITorqueReferenceForBearing ``` #### Inheritance [object](https://learn.microsoft.com/dotnet/api/system.object) ← ObservableObject ← LinkableBase ← ObjectBase ← Object ← ContainerObject ← EntityBase ← Entity ← Connector ← [Force](VM.Managed.DAFUL.Force.Force-1.md) ← [TSpringDamper](VM.Managed.DAFUL.Force.TSpringDamper.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, IDraw, IDrawIcon, IReferencable, ITransformable, IConnector, IEntityRelation, IGenerable, IArgument, IReportable, IFlip, IHasReplaceableEntity, IEnableForSimulationScenario, ITorqueReferenceForBearing #### Inherited Members [Force.Initialize(Unit.ConvertFactor)](VM.Managed.DAFUL.Force.Force-1.md#VM_Managed_DAFUL_Force_Force_1_Initialize_VM_Unit_ConvertFactor_), [Force.WriteMarker(XmlWriter, Marker, string)](VM.Managed.DAFUL.Force.Force-1.md#VM_Managed_DAFUL_Force_Force_1_WriteMarker_System_Xml_XmlWriter_VM_Managed_DAFUL_Marker_System_String_), [Force.ReadMarker(XmlReader, Marker, string)](VM.Managed.DAFUL.Force.Force-1.md#VM_Managed_DAFUL_Force_Force_1_ReadMarker_System_Xml_XmlReader_VM_Managed_DAFUL_Marker_System_String_), [Force.UseForSimulationScenario](VM.Managed.DAFUL.Force.Force-1.md#VM_Managed_DAFUL_Force_Force_1_UseForSimulationScenario), Connector.Initialize(Unit.ConvertFactor), Connector.GetTargetListForUpdate(), Connector.PostAddToDocument(), Connector.ResetInvalidEntity(), Connector.Verify(VerifiedResult), Connector.LinkRequestUpdate(object, LinkEventArgs), Connector.GetModelNavigatorInformationImpl(XmlDocument, XmlElement, bool), Connector.Draw(Canvas), Connector.ReDraw(), Connector.FindLocal(string), Connector.Instantiate(Reference, Canvas), Connector.MakeReference(LinkedList), Connector.MakeReferenceImpl(LinkedList), Connector.GetLayerImpl(), Connector.SetLayerImpl(Layer), Connector.SwitchImpl(), Connector.BaseMarker, Connector.ActionMarker, Connector.ConnectorReferenceMarker, Connector.PreventDuplicatedRBE, Connector.Generable, Connector.HasLayerExplicitly, Connector.Hide, Connector.Referencable, Connector.Visible, Connector.Layer, Connector.ReferenceType, Connector.ArgumentType, Connector.CanWriteToOutFileImpl, Connector.ReportTypeImpl, Connector.CanSwitchImpl, Entity.Initialize(Unit.ConvertFactor), Entity.GetUnnamedObjectName(object), Entity.FindLocal(string), Entity.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.Find(string), ContainerObject.FindLocal(string), ContainerObject.GetUnnamedObjectName(object), ContainerObject.GetNewEntityName(string), ContainerObject.GetNewEntityName(string, bool, int), ContainerObject.GetNewEntityName(string, bool, int, int), Object.GetKey(), Object.Initialize(Unit.ConvertFactor), Object.SetIconColor(Canvas), Object.OnDeserialization(object), Object.CustomGetObjectData(SerializationInfo, StreamingContext), Object.RollbackEvent(), Object.OnDeserializedCore(object), Object.Key, Object.UntypedEventCore, Object.EventCore, Object.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.ResetInvalidEntity(), ObjectBase.OnDeserialization(object), ObjectBase.IsSerializableEvent(Delegate), ObjectBase.CustomGetObjectData(SerializationInfo, StreamingContext), ObjectBase.CheckAndUpdateLink(HashSet), 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\[\]), ObjectBase.IsEqualList(List, List), 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(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkedObjects__1_System_Object_VM_Models_Pre_LinkPropertyType_) ## Constructors ### TSpringDamper() Initializes a new instance of the class. ```csharp public TSpringDamper() ``` ### TSpringDamper(string) Initializes a new instance of the class. ```csharp public TSpringDamper(string strName) ``` #### Parameters `strName` [string](https://learn.microsoft.com/dotnet/api/system.string) Name of the spring damper force. ## Properties ### FreeLength Gets or sets the free length. ```csharp public ExpressionValueVariable FreeLength { get; set; } ``` #### Property Value ExpressionValueVariable ### ReportTypeImpl Gets the report type. ```csharp protected override IReportable.ReportEntityType ReportTypeImpl { get; } ``` #### Property Value IReportable.ReportEntityType ### SpringCoilCount Gets or sets the spring coil count. ```csharp public int SpringCoilCount { get; set; } ``` #### Property Value [int](https://learn.microsoft.com/dotnet/api/system.int32) ### SpringCoilLength1 Gets or sets the distance between base marker and damper. ```csharp public double SpringCoilLength1 { get; set; } ``` #### Property Value [double](https://learn.microsoft.com/dotnet/api/system.double) ### SpringCoilLength2 Gets or sets distance between action marker and damper. ```csharp public double SpringCoilLength2 { get; set; } ``` #### Property Value [double](https://learn.microsoft.com/dotnet/api/system.double) ### SpringDiameter Gets or sets the spring diameter. ```csharp public double SpringDiameter { get; set; } ``` #### Property Value [double](https://learn.microsoft.com/dotnet/api/system.double) ## Methods ### Draw(Canvas) Draws the icon. ```csharp public override void Draw(Canvas canvas) ``` #### Parameters `canvas` Canvas The canvas has icon information. ### Initialize(ConvertFactor) Initializes member through unit convert factor. ```csharp public override void Initialize(Unit.ConvertFactor factor) ``` #### Parameters `factor` Unit.ConvertFactor The unit convert factor. ### 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. ### UpdateFreeLength() Updates the free length. ```csharp public void UpdateFreeLength() ```