# IFieldSelectionObserver Interface

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

## Syntax

```
public interface IFieldSelectionObserver : IAbstractStructure
```

## Properties

| Name | Description |
| --- | --- |
| [FieldName](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Sense.Client.IFieldSelectionObserver.FieldName.htm#Qlik_Sense_Client_IFieldSelectionObserver_FieldName) | Field name<br><br>JSON property name: fieldName |
| [HyperCube](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Sense.Client.IFieldSelectionObserver.HyperCube.htm#Qlik_Sense_Client_IFieldSelectionObserver_HyperCube) | JSON property name: qHyperCube |