# MailMerge.FormFieldMergedEventArgs.SubTextPartNumber Property

> Gets the 1-based number of the subtext part the field is part of. Is 0 if the field is not part of a subtext part.

- **Product:** TX Text Control .NET for WPF
- **Section:** Reference
- **Kind:** Property
- **Introduced:** 33.0
- **Namespace:** `TXTextControl.DocumentServer`
- **Package:** `TXTextControl.TextControl.WPF.SDK` (assembly `TXDocumentServer.dll`, from the private NuGet feed or Text Control Offline Packages)
- **.NET Framework:** reference `TXDocumentServer.dll` from the setup
- **Path:** TX Text Control .NET for WPF > Reference > TXTextControl.DocumentServer > MailMerge.FormFieldMergedEventArgs.SubTextPartNumber Property
- **331 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol-documentserver/mailmerge-formfieldmergedeventargs/subtextpartnumber-property/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol-documentserver/mailmerge-formfieldmergedeventargs/subtextpartnumber-property/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol-documentserver/mailmerge-formfieldmergedeventargs/subtextpartnumber-property/llms-full.txt

---

### Description

Gets the 1-based number of the subtext part the field is part of. Is 0 if the field is not part of a subtext part.

### Syntax

```csharp
public int SubTextPartNumber { get; }
```

```vbnet
Public ReadOnly Property SubTextPartNumber As Integer
```

### Examples

The following example includes the sub text part number value in application diagnostics. The created object is then available to the surrounding document workflow.

```csharp
Console.WriteLine($"Sub Text Part Number: {formFieldMergedEventArgs.SubTextPartNumber}");
Console.WriteLine("Form Field Merged Event Args is ready for use.");
```

```vbnet
Console.WriteLine($"Sub Text Part Number: {formFieldMergedEventArgs.SubTextPartNumber}")
Console.WriteLine("Form Field Merged Event Args is ready for use.")
```

### Limitations

Read only.

---

## Nearby

- **Previous:** [MailMerge.FormFieldMergedEventArgs.SubTextPartID Property](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol-documentserver/mailmerge-formfieldmergedeventargs/subtextpartid-property/llms-full.txt)
- **Next:** [MailMerge.FormFieldMergedEventArgs.TableCell Property](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol-documentserver/mailmerge-formfieldmergedeventargs/tablecell-property/llms-full.txt)