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 # Class Entity

 Last update: 16.07.2025 

Namespace: [VM.Models.FE.Mesh](VM.Models.FE.Mesh.md)  
Assembly: VM.Models.FE.Mesh.dll

```csharp
public abstract class Entity : IEntity

```

#### Inheritance

[object](https://learn.microsoft.com/dotnet/api/system.object) ← [Entity](VM.Models.FE.Mesh.Entity.md)

#### Derived

[Element](VM.Models.FE.Mesh.Elements.Element.md), [HasMultipleNodes](VM.Models.FE.Mesh.HasMultipleNodes.md), [Material](VM.Models.FE.Mesh.Materials.Material.md), [Node](VM.Models.FE.Mesh.Node.md), [Solid](VM.Models.FE.Mesh.Properties.Solid.md)

#### Implements

[IEntity](VM.Models.FE.Mesh.IEntity.md)

#### 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

### Entity()

```csharp
protected Entity()

```

## Properties

### Id

```csharp
[Column(IsPrimaryKey = true)]
public int Id { get; set; }

```

#### Property Value

[int](https://learn.microsoft.com/dotnet/api/system.int32)

## Methods

### Equals(object)

```csharp
public override bool Equals(object obj)

```

#### Parameters

`obj` [object](https://learn.microsoft.com/dotnet/api/system.object)

#### Returns

[bool](https://learn.microsoft.com/dotnet/api/system.boolean)

### FromByteArray<T>(byte\[\])

```csharp
protected static T FromByteArray<T>(byte[] arr)

```

#### Parameters

`arr` [byte](https://learn.microsoft.com/dotnet/api/system.byte)\[\]

#### Returns

T

#### Type Parameters

`T`

### GetHashCode()

```csharp
public override int GetHashCode()

```

#### Returns

[int](https://learn.microsoft.com/dotnet/api/system.int32)

### ToByteArray&lt;T&gt;(T)

```csharp
protected static byte[] ToByteArray<T>(T value)

```

#### Parameters

`value` T

#### Returns

[byte](https://learn.microsoft.com/dotnet/api/system.byte)\[\]

#### Type Parameters

`T`