# ISeriesDataAdapter.GetNumericalValue method

Returns the numerical value of the specified data point member.

**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 double GetNumericalValue(int index, SeriesDataMemberType dataMember)
```

## Parameters

| name | type | description |
| --- | --- | --- |
| index | `int` | The zero-based index of the data point. |
| dataMember | [`SeriesDataMemberType`](../SeriesDataMemberType.md) | The data point member whose value is requested. |

## Returns

| type | description |
| --- | --- |
| `double` | The value of the member. |

## See Also

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

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