# NxMetaDef Class

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

Used to collect meta data.

#### Properties

Semantic type with an empty structure.

## Inheritance

* System.Object
  * [AbstractStructure](https://help.qlik.com/en-US/sense-developer/November2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.AbstractStructure.htm)
    * NxMetaDef

      [](https://help.qlik.com/en-US/sense-developer/Subsystems/NetSDKAPIref/Content/Qlik.Engine.NxMetaDef.htm)
      #### Derived Classes
      * [MetaAttributesDef](https://help.qlik.com/en-US/sense-developer/November2025/Subsystems/NetSDKAPIref/Content/Qlik.Sense.Client.MetaAttributesDef.htm)

## Syntax

```
[ValueClass]
public class NxMetaDef : AbstractStructure, IDisposable, INxMetaDef, IAbstractStructure
```

## Constructors

| Name | Description |
| --- | --- |
| [NxMetaDef()](https://help.qlik.com/en-US/sense-developer/November2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.NxMetaDef.-ctor.htm#Qlik_Engine_NxMetaDef__ctor) |  |