---
title: "Get Sample File"
slug: "get-sample-file"
tags: ["sample file", "data", "csv", "database"]
updated: 2022-12-20T20:02:51Z
published: 2022-12-20T20:02:51Z
canonical: "documentation.decisions.com/get-sample-file"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://documentation.decisions.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Get Sample File

| ## Step Details |
| --- |
| **Introduced in Version** | 4.0.0 |
| **Last Modified in Version** | 5.0.0 |
| **Location** | Database |

The **Get Sample File** step collects a list of Field Names belonging to the same Type Name and exports them into a sample CSV file.

---

## Properties

#### Inputs

| Property | Description | Data Type |
| --- | --- | --- |
| Field Name | Defines the field names for the Type | List of String |
| Type Name | Defines the Type name | String |

#### Outputs

| Property | Description | Data Type |
| --- | --- | --- |
| Sample File | Outputs a CSV file with the field names | FileData |

---

## Example Inputs and Outputs

| Field Name | Type Name | Output |
| --- | --- | --- |
| Name, Email Address | User | CSV file |
| Name, Age | Null | EXCEPTION MESSAGE |
| Null | User | EXCEPTION MESSAGE |

#### ![](https://cdn.document360.io/6ef8bcc1-6489-4486-9ad1-83acff7e5df0/Images/Documentation/image-1671564309349.png)

---

## Common Errors

### Value cannot be null

If the input value is null, an error will occur. To correct this, ensure that the value for the input fields exists.

#### Exception Message:

```csharp
Exception Stack Trace: DecisionsFramework.Design.Flow.ErrorRunningFlowStep: Error running step Get Sample File 1[GetSampleFileStep] in flow [Flow 2]: Value cannot be null. (Parameter 'source')
 ---> System.ArgumentNullException: Value cannot be null. (Parameter 'source'
 at System.Linq.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument
 at System.Linq.Enumerable.TryGetLast[TSource](IEnumerable`1 source, Boolean& found
 at DecisionsFramework.Design.Flow.CoreSteps.DataBase.GetSampleFileStep.Run(StepStartData data
 at DecisionsFramework.Design.Flow.FlowStep.RunStepInternal(String flowTrackingID, String stepTrackingID, KeyValuePairDataStructure[] stepRunDataValues, AbstractFlowTrackingData trackingData
 at DecisionsFramework.Design.Flow.FlowStep.Start(String flowTrackingID, String stepTrackingID, FlowStateData data, AbstractFlowTrackingData trackingData, RunningStepData currentStepData)
   --- End of inner exception stack trace ---
```

## Related

- [File Exists](/file-exists.md)
- [Match File](/match-file.md)
- [Add File To Zip](/add-file-to-zip.md)
- [Download File to Path](/download-file-to-path.md)
- [Touch File](/touch-file.md)