# FieldDefs Property

## Overloads

| [FieldDefs](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.NxDerivedFieldsData.FieldDefs.htm#Qlik_Engine_NxDerivedFieldsData_FieldDefs) |  | List of the derived fields.<br><br>JSON property name: qFieldDefs |
| --- | --- | --- |

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

## FieldDefs

List of the derived fields.

JSON property name: qFieldDefs

### Declaration

```

          public IEnumerable<NxDerivedField> FieldDefs { get; set; }
    
  
```

### Property Value

| Type | Description |
| --- | --- |
| System.Collections.Generic.IEnumerable&lt;[NxDerivedField](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.NxDerivedField.htm)&gt; |  |

### Implements

[INxDerivedFieldsData.FieldDefs](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.INxDerivedFieldsData.FieldDefs.htm#Qlik_Engine_INxDerivedFieldsData_FieldDefs)