# Footnote.ReferenceMarkStart Property

> Gets the index (one-based) of the first character of the footnote's reference mark.

- **Product:** TX Text Control .NET Server
- **Section:** Reference
- **Kind:** Property
- **Introduced:** 32.0
- **Namespace:** `TXTextControl`
- **Package:** `TXTextControl.TextControl.Core.SDK` (assembly `TXTextControl.Core.dll`, from the private NuGet feed or Text Control Offline Packages)
- **Package:** `TXTextControl.TextControl.ASP.SDK` (assembly `TXTextControl.dll`, from the private NuGet feed or Text Control Offline Packages)
- **.NET Framework:** reference `TXTextControl.dll` from the setup
- **Path:** TX Text Control .NET Server > Reference > TXTextControl > Footnote.ReferenceMarkStart Property
- **425 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol/footnote/referencemarkstart-property/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol/footnote/referencemarkstart-property/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol/footnote/referencemarkstart-property/llms-full.txt

---

### Description

Gets the index (one-based) of the first character of the footnote's reference mark.

### Syntax

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

```vbnet
Public ReadOnly Property ReferenceMarkStart As Integer
```

### Examples

The following example adds and configures a source note at the current input position by using `Footnote.ReferenceMarkStart`.

```csharp
Footnote footnote = new("Source: FY 2026 annual report");
textControl.Footnotes.Add(footnote, false);

Console.WriteLine($"Reference Mark Start: {footnote.ReferenceMarkStart}");
Console.WriteLine("Footnote is ready for use.");
```

```vbnet
Dim footnote As New Footnote("Source: FY 2026 annual report")
textControl.Footnotes.Add(footnote, False)

Console.WriteLine($"Reference Mark Start: {footnote.ReferenceMarkStart}")
Console.WriteLine("Footnote is ready for use.")
```

### Limitations

Read only.

---

## Nearby

- **Previous:** [Footnote.ReferenceMarkLength Property](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol/footnote/referencemarklength-property/llms-full.txt)
- **Next:** [Footnote.Save Method](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol/footnote/save-method/llms-full.txt)