Get properties from derived class in base class

Question

How do I get properties from derived class in base class?

Base class:

public abstract class BaseModel {
    protected static readonly Dictionary

        

Answer 1

Okay, I solved this problem slightly different than the author of this post: http://weblogs.asp.net/marianor/archive/2009/04/17/wpf-validation-with-attributes-and-idataerrorinfo-interface-in-mvvm.aspx

public abstract class BaseModel : IDataErrorInfo {
    protected Type _type;
    protected readonly Dictionary _validators;
    protected readonly Dictionary _properties;

    public BaseModel() {
        _type = this.GetType();
        _properties = _type.GetProperties().ToDictionary(p => p.Name, p => p);
        _validators = _properties.Where(p => _getValidations(p.Value).Length != 0).ToDictionary(p => p.Value.Name, p => _getValidations(p.Value));
    }

    protected ValidationAttribute[] _getValidations(PropertyInfo property) {
        return (ValidationAttribute[])property.GetCustomAttributes(typeof(ValidationAttribute), true);
    }

    public string this[string columnName] {
        get {
            if (_properties.ContainsKey(columnName)) {
                var value = _properties[columnName].GetValue(this, null);
                var errors = _validators[columnName].Where(v => !v.IsValid(value)).Select(v => v.ErrorMessage).ToArray();
                return string.Join(Environment.NewLine, errors);
            }

            return string.Empty;
        }
    }

    public string Error {
        get { throw new NotImplementedException(); }
    }
}

Maybe it will help somebody.