Artemis/src/Artemis.UI.Shared/Extensions/ControlExtensions.cs

using Avalonia.Controls;
using Avalonia.LogicalTree;

namespace Artemis.UI.Shared.Extensions
{
    /// <summary>
    ///     Provides extension methods for Avalonia's <see cref="Control" /> type
    /// </summary>
    public static class ControlExtensions
    {
        /// <summary>
        ///     Clears all data validation errors on the given control and any of it's logical siblings
        /// </summary>
        /// <param name="target">The target control</param>
        public static void ClearAllDataValidationErrors(this Control target)
        {
            DataValidationErrors.ClearErrors(target);
            foreach (ILogical logicalChild in target.GetLogicalChildren())
            {
                if (logicalChild is Control childControl)
                    childControl.ClearAllDataValidationErrors();
            }
        }
    }
}