# IMongoFields Interface

Namespace: [Qlik.Engine](https://help.qlik.com/en-US/sense-developer/May2026/Subsystems/NetSDKAPIref/Content/Qlik.Engine.htm)  
Assembly: Qlik.Engine.dll

## Syntax

```
[ValueClass]
public interface IMongoFields
```

## Properties

| Name | Description |
| --- | --- |
| [FieldStates](https://help.qlik.com/en-US/sense-developer/May2026/Subsystems/NetSDKAPIref/Content/Qlik.Engine.IMongoFields.FieldStates.htm#Qlik_Engine_IMongoFields_FieldStates) | JSON property name: qFieldStates |