# TreeListCustomSummaryEventArgs.SummaryValue property

Gets or sets the result of the custom summary calculation.

```csharp
public object? SummaryValue { get; set; }
```

## See Also

* class [TreeListCustomSummaryEventArgs](../TreeListCustomSummaryEventArgs.md)
* namespace [Eremex.AvaloniaUI.Controls.TreeList](../index.md)

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