# INxAttrExprInfo Interface

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

Layout for `NxAttrExprDef`.

## Syntax

```
[ValueClass]
public interface INxAttrExprInfo : IAbstractStructure
```

## Properties

| Name | Description |
| --- | --- |
| [FallbackTitle](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.INxAttrExprInfo.FallbackTitle.htm#Qlik_Engine_INxAttrExprInfo_FallbackTitle) | JSON property name: qFallbackTitle |
| [IsAutoFormat](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.INxAttrExprInfo.IsAutoFormat.htm#Qlik_Engine_INxAttrExprInfo_IsAutoFormat) | This parameter is set to true if `qNumFormat` is set to `U` (unknown). The engine guesses the type of the field based on the field's expression.<br><br>JSON property name: qIsAutoFormat |
| [Max](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.INxAttrExprInfo.Max.htm#Qlik_Engine_INxAttrExprInfo_Max) | Maximum value.<br><br>JSON property name: qMax |
| [MaxText](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.INxAttrExprInfo.MaxText.htm#Qlik_Engine_INxAttrExprInfo_MaxText) | String version of the maximum Value.<br><br>JSON property name: qMaxText |
| [Min](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.INxAttrExprInfo.Min.htm#Qlik_Engine_INxAttrExprInfo_Min) | Minimum value.<br><br>JSON property name: qMin |
| [MinText](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.INxAttrExprInfo.MinText.htm#Qlik_Engine_INxAttrExprInfo_MinText) | String version of the minimum Value.<br><br>JSON property name: qMinText |
| [NumFormat](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.INxAttrExprInfo.NumFormat.htm#Qlik_Engine_INxAttrExprInfo_NumFormat) | Format of the field.<br><br>This parameter is optional.<br><br>JSON property name: qNumFormat |