# ISeriesDataAdapter.GetUnderlyingDataPrefix method

Returns the localized prefix that precedes the underlying data text in the crosshair label.

**Namespace:** [`Eremex.AvaloniaUI.Charts`](../index.md)  
**Assembly:** `Eremex.Avalonia.Charts.dll`  
**NuGet Package:** [Eremex.Avalonia.Controls](https://www.nuget.org/packages/Eremex.Avalonia.Controls)

## Declaration

```csharp
public string GetUnderlyingDataPrefix()
```

## Returns

| type | description |
| --- | --- |
| `string` | The prefix text. |

## See Also

* interface [ISeriesDataAdapter](../ISeriesDataAdapter.md)
* namespace [Eremex.AvaloniaUI.Charts](../index.md)

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