# INxFieldDerivedDefinition Interface

Namespace: [Qlik.Engine](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.htm)  
Assembly: Qlik.Engine.dll

## Syntax

```
[ValueClass]
public interface INxFieldDerivedDefinition
```

## Properties

| Name | Description |
| --- | --- |
| [Expression](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.INxFieldDerivedDefinition.Expression.htm#Qlik_Engine_INxFieldDerivedDefinition_Expression) | JSON property name: qExpression |
| [Name](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.INxFieldDerivedDefinition.Name.htm#Qlik_Engine_INxFieldDerivedDefinition_Name) | JSON property name: qName |
| [Tags](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.INxFieldDerivedDefinition.Tags.htm#Qlik_Engine_INxFieldDerivedDefinition_Tags) | JSON property name: qTags |