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 # Class EquationDiffUserSubroutine

 Last update: 09.03.2026 

<a id="VM_Managed_DAFUL_Equation_EquationDiffUserSubroutine"></a>

Namespace: [VM.Managed.DAFUL.Equation](VM.Managed.DAFUL.Equation.md)  
Assembly: VMDEq.dll

This class is to represent the differential equation charactoristic properties of user-subroutine type.

```csharp
public sealed class EquationDiffUserSubroutine : EquationFunctionDiff, IObservableObject, IDisposableObject, ILinkable, IObject, ILinkContainer, IOwned, IHasID, IEventProvider, ILinkContainerEvent, IVerifiable

```

#### Inheritance

object ← ObservableObject ← [LinkableBase](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/Pre/Data/VM.Models.Pre/Models/LinkableBase.cs) ← LinkContainer ← [EquationFunction](VM.Managed.DAFUL.Equation.EquationFunction.md) ← [EquationFunctionDiff](VM.Managed.DAFUL.Equation.EquationFunctionDiff.md) ← [EquationDiffUserSubroutine](VM.Managed.DAFUL.Equation.EquationDiffUserSubroutine.md)

#### Implements

IObservableObject, IDisposableObject, ILinkable, IObject, ILinkContainer, IOwned, IHasID, IEventProvider, ILinkContainerEvent, IVerifiable

#### Inherited Members

[EquationFunctionDiff.InitialVel](VM.Managed.DAFUL.Equation.EquationFunctionDiff.md#VM_Managed_DAFUL_Equation_EquationFunctionDiff_InitialVel), [EquationFunctionDiff.IsUseHold](VM.Managed.DAFUL.Equation.EquationFunctionDiff.md#VM_Managed_DAFUL_Equation_EquationFunctionDiff_IsUseHold), [EquationFunctionDiff.DifferentialFunctionType](VM.Managed.DAFUL.Equation.EquationFunctionDiff.md#VM_Managed_DAFUL_Equation_EquationFunctionDiff_DifferentialFunctionType), [EquationFunction.InitialDisp](VM.Managed.DAFUL.Equation.EquationFunction.md#VM_Managed_DAFUL_Equation_EquationFunction_InitialDisp), [EquationFunction.Type](VM.Managed.DAFUL.Equation.EquationFunction.md#VM_Managed_DAFUL_Equation_EquationFunction_Type), LinkContainer.SetModified(), LinkContainer.raise\_OnUpdating(object, LinkEventArgs), LinkContainer.raise\_OnUpdate(object, LinkEventArgs), LinkContainer.raise\_OnDestroying(object, LinkEventArgs), LinkContainer.raise\_OnDestroy(object, LinkEventArgs), LinkContainer.raise\_OnAdded(object, AddToDocEventArgs), LinkContainer.raise\_OnRemoved(object, RemoveFromDocEventArgs), LinkContainer.GetTargetListForUpdate(), LinkContainer.SkipUpdateObjectImpl(), LinkContainer.Initialize(Unit.ConvertFactor), LinkContainer.SetFlagWhenXMLFile(string, bool), LinkContainer.SetContainer(IOwned, bool), LinkContainer.Container, LinkContainer.Owner, LinkContainer.Document, LinkContainer.ID, LinkContainer.IsChildExternable, LinkContainer.IsExternable, LinkContainer.OnRemoved, LinkContainer.OnAdded, LinkContainer.OnDestroy, LinkContainer.OnDestroying, LinkContainer.OnUpdate, LinkContainer.OnUpdating, ObservableObject.Dispose(), ObservableObject.RaisePropertyChanged(string), ObservableObject.RaisePropertyChanged(string, object, object), 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&lt;T&gt;(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkedObjects__1_System_Object_VM_Models_Pre_LinkPropertyType_)

## Constructors

### <a id="VM_Managed_DAFUL_Equation_EquationDiffUserSubroutine__ctor"></a> EquationDiffUserSubroutine()

Initializes a new instance of the  class.

```csharp
public EquationDiffUserSubroutine()

```

### <a id="VM_Managed_DAFUL_Equation_EquationDiffUserSubroutine__ctor_VM_Managed_DAFUL_Equation_Equation_"></a> EquationDiffUserSubroutine(Equation)

Initializes a new instance of the  class.

```csharp
public EquationDiffUserSubroutine(Equation owner)

```

#### Parameters

`owner` [Equation](VM.Managed.DAFUL.Equation.Equation.md)

The owner equation.

## Properties

### <a id="VM_Managed_DAFUL_Equation_EquationDiffUserSubroutine_Type"></a> Type

Gets the function type.

```csharp
public override EquationFunction.FunctionType Type { get; }

```

#### Property Value

[EquationFunction](VM.Managed.DAFUL.Equation.EquationFunction.md).[FunctionType](VM.Managed.DAFUL.Equation.EquationFunction.FunctionType.md)

### <a id="VM_Managed_DAFUL_Equation_EquationDiffUserSubroutine_UserSubroutine"></a> UserSubroutine

Gets or sets the user subroutine.

```csharp
public UserSubroutine UserSubroutine { get; set; }

```

#### Property Value

[UserSubroutine](https://github.com/AnsysVirtualMotion/DAFUL/blob/9110677a5f6a53d7604f8dfd35b4c5fceb59e8e0/DAFUL/ClassicPre/Data/VMDSP/UserSubroutine.cs)