# ValueClassAttribute Class

Namespace: [Qlik.Engine](https://help.qlik.com/en-US/sense-developer/November2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.htm)  
Assembly: Qlik.Engine.dll

Describes that a class is static data only. When its parent object updates, this object will no longer be valid.

## Inheritance

* System.Object
  * System.Attribute
    * ValueClassAttribute

## Syntax

```
[AttributeUsage(AttributeTargets.Assembly | AttributeTargets.Module | AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Enum | AttributeTargets.Constructor | AttributeTargets.Method | AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Event | AttributeTargets.Interface | AttributeTargets.Parameter | AttributeTargets.Delegate | AttributeTargets.ReturnValue | AttributeTargets.GenericParameter | AttributeTargets.All, AllowMultiple = true)]
public class ValueClassAttribute : Attribute, _Attribute
```

### Constructors

| Name | Description |
| --- | --- |
| ValueClassAttribute() |  |