# IsSystem Property

## Overloads

| [IsSystem](https://help.qlik.com/en-US/sense-developer/May2026/Subsystems/NetSDKAPIref/Content/Qlik.Engine.IFieldDescription.IsSystem.htm#Qlik_Engine_IFieldDescription_IsSystem) |  | If set to true, it means that the field is a system field.<br><br>The default value is false.<br><br>JSON property name: qIsSystem |
| --- | --- | --- |

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

## IsSystem

If set to true, it means that the field is a system field.

The default value is false.

JSON property name: qIsSystem

### Declaration

```

          bool IsSystem { get; set; }
    
  
```

### Property Value

| Type | Description |
| --- | --- |
| System.Boolean |  |