# FieldSelectionObserverDef Class

Namespace: [Qlik.Sense.Client](https://help.qlik.com/en-US/sense-developer/November2024/Subsystems/NetSDKAPIref/Content/Qlik.Sense.Client.htm)  
Assembly: Qlik.Sense.Client.dll

## Inheritance

* System.Object
  * [AbstractStructure](https://help.qlik.com/en-US/sense-developer/November2024/Subsystems/NetSDKAPIref/Content/Qlik.Engine.AbstractStructure.htm)
    * FieldSelectionObserverDef

## Syntax

```
public class FieldSelectionObserverDef : AbstractStructure, IDisposable, IFieldSelectionObserverDef, IAbstractStructure
```

## Constructors

| Name | Description |
| --- | --- |
| [FieldSelectionObserverDef()](https://help.qlik.com/en-US/sense-developer/November2024/Subsystems/NetSDKAPIref/Content/Qlik.Sense.Client.FieldSelectionObserverDef.-ctor.htm#Qlik_Sense_Client_FieldSelectionObserverDef__ctor) | Creates an instance of the FieldSelectionObserverDef class |

## Properties

| Name | Description |
| --- | --- |
| [FieldName](https://help.qlik.com/en-US/sense-developer/November2024/Subsystems/NetSDKAPIref/Content/Qlik.Sense.Client.FieldSelectionObserverDef.FieldName.htm#Qlik_Sense_Client_FieldSelectionObserverDef_FieldName) | Field name<br><br>JSON property name: fieldName |
| [HyperCubeDef](https://help.qlik.com/en-US/sense-developer/November2024/Subsystems/NetSDKAPIref/Content/Qlik.Sense.Client.FieldSelectionObserverDef.HyperCubeDef.htm#Qlik_Sense_Client_FieldSelectionObserverDef_HyperCubeDef) | JSON property name: qHyperCubeDef |