定义了窗口的模板样式后，INotifyDataErrorInfo不会触发Textbox样式

using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;

public class MyDataModel : INotifyDataErrorInfo
{
    private string _name;
    private List<string> _errors;

    public string Name
    {
        get { return _name; }
        set
        {
            if (_name != value)
            {
                _name = value;
                ValidateName();
                OnPropertyChanged("Name");
            }
        }
    }

    public bool HasErrors
    {
        get { return _errors != null && _errors.Any(); }
    }

    public event PropertyChangedEventHandler PropertyChanged;
    public event EventHandler<DataErrorsChangedEventArgs> ErrorsChanged;

    public IEnumerable GetErrors(string propertyName)
    {
        if (propertyName == "Name")
        {
            return _errors;
        }
        return null;
    }

    private void ValidateName()
    {
        _errors = new List<string>();

        // Perform validation logic
        if (string.IsNullOrEmpty(Name))
        {
            _errors.Add("Name is required.");
        }

        // Raise ErrorsChanged event
        ErrorsChanged?.Invoke(this, new DataErrorsChangedEventArgs("Name"));
    }

    protected virtual void OnPropertyChanged(string propertyName)
    {
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }
}

<TextBox Text="{Binding Name, UpdateSourceTrigger=PropertyChanged}">
    <TextBox.Style>
        <Style TargetType="TextBox">
            <Style.Triggers>
                <Trigger Property="Validation.HasError" Value="True">
                    <Setter Property="BorderBrush" Value="Red" />
                    <Setter Property="ToolTip" Value="{Binding (Validation.Errors)[0].ErrorContent, RelativeSource={RelativeSource Self}}" />
                </Trigger>
            </Style.Triggers>
        </Style>
    </TextBox.Style>
</TextBox>