# FieldInTableData Class

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

## Inheritance

* System.Object
  * FieldInTableData

## Syntax

```
[ValueClass]
public class FieldInTableData : IFieldInTableData
```

## Constructors

| Name | Description |
| --- | --- |
| [FieldInTableData()](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.-ctor.htm#Qlik_Engine_FieldInTableData__ctor) |  |

## Properties

| Name | Description |
| --- | --- |
| [Comment](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.Comment.htm#Qlik_Engine_FieldInTableData_Comment) | Comment related to the field.<br><br>JSON property name: qComment |
| [DerivedFields](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.DerivedFields.htm#Qlik_Engine_FieldInTableData_DerivedFields) | List of the derived fields.<br><br>JSON property name: qDerivedFields |
| [HasDuplicates](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.HasDuplicates.htm#Qlik_Engine_FieldInTableData_HasDuplicates) | This property is set to true if the field contains some duplicate values.<br><br>JSON property name: qHasDuplicates |
| [HasNull](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.HasNull.htm#Qlik_Engine_FieldInTableData_HasNull) | This property is set to true if the field contains some Null values.<br><br>JSON property name: qHasNull |
| [HasWild](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.HasWild.htm#Qlik_Engine_FieldInTableData_HasWild) | JSON property name: qHasWild |
| [InformationDensity](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.InformationDensity.htm#Qlik_Engine_FieldInTableData_InformationDensity) | Number of records that have values (for example, not NULL) in the field as compared to the total number of records in the table.<br><br>JSON property name: qInformationDensity |
| [IsFieldOnTheFly](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.IsFieldOnTheFly.htm#Qlik_Engine_FieldInTableData_IsFieldOnTheFly) | JSON property name: qIsFieldOnTheFly |
| [IsSynthetic](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.IsSynthetic.htm#Qlik_Engine_FieldInTableData_IsSynthetic) | This property is set to true if the field contains a synthetic key.<br><br>JSON property name: qIsSynthetic |
| [KeyType](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.KeyType.htm#Qlik_Engine_FieldInTableData_KeyType) | Tells if the field is a key field.<br><br>JSON property name: qKeyType |
| [Name](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.Name.htm#Qlik_Engine_FieldInTableData_Name) | Name of the field.<br><br>JSON property name: qName |
| [nNonNulls](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.nNonNulls.htm#Qlik_Engine_FieldInTableData_nNonNulls) | Number of values that are non Null.<br><br>JSON property name: qnNonNulls |
| [nPresentDistinctValues](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.nPresentDistinctValues.htm#Qlik_Engine_FieldInTableData_nPresentDistinctValues) | JSON property name: qnPresentDistinctValues |
| [nRows](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.nRows.htm#Qlik_Engine_FieldInTableData_nRows) | Number of rows in the field.<br><br>JSON property name: qnRows |
| [nTotalDistinctValues](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.nTotalDistinctValues.htm#Qlik_Engine_FieldInTableData_nTotalDistinctValues) | Number of distinct values in the field.<br><br>JSON property name: qnTotalDistinctValues |
| [OriginalFields](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.OriginalFields.htm#Qlik_Engine_FieldInTableData_OriginalFields) | Is shown for fixed records.<br><br><br>`qOriginalFieldName` and `qName` are identical if no field names are used in the file.<br><br><br>`qOriginalFieldName` differs from `qName` if embedded file names are used in the file.<br><br>JSON property name: qOriginalFields |
| [Present](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.Present.htm#Qlik_Engine_FieldInTableData_Present) | JSON property name: qPresent |
| [ReadableName](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.ReadableName.htm#Qlik_Engine_FieldInTableData_ReadableName) | JSON property name: qReadableName |
| [SubsetRatio](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.SubsetRatio.htm#Qlik_Engine_FieldInTableData_SubsetRatio) | Number of distinct values in the field (in the current table) as compared to the total number of distinct values of this field (in all tables).<br><br>JSON property name: qSubsetRatio |
| [Tags](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Engine.FieldInTableData.Tags.htm#Qlik_Engine_FieldInTableData_Tags) | List of tags related to the field.<br><br>JSON property name: qTags |