# TreeViewValidateCellValueEventArgs.ErrorContent property

Gets or sets an object that describes the validation error.

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

## See Also

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

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