# FieldDefs Property

## Overloads

| [FieldDefs](https://help.qlik.com/en-US/sense-developer/November2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.INxDerivedDefinition.FieldDefs.htm#Qlik_Engine_INxDerivedDefinition_FieldDefs) |  | JSON property name: qFieldDefs |
| --- | --- | --- |

[](https://help.qlik.com/en-US/sense-developer/Subsystems/NetSDKAPIref/Content/Qlik.Engine.INxDerivedDefinition.FieldDefs.htm) [](https://help.qlik.com/en-US/sense-developer/Subsystems/NetSDKAPIref/Content/Qlik.Engine.INxDerivedDefinition.FieldDefs.htm)

## FieldDefs

JSON property name: qFieldDefs

### Declaration

```

          IEnumerable<NxFieldDerivedDefinition> FieldDefs { get; set; }
    
  
```

### Property Value

| Type | Description |
| --- | --- |
| System.Collections.Generic.IEnumerable&lt;[NxFieldDerivedDefinition](https://help.qlik.com/en-US/sense-developer/November2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.NxFieldDerivedDefinition.htm)&gt; |  |