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public static class ProjectExtension
{
/// <summary>
/// Properties 의 동일여부
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="self"></param>
/// <param name="to"></param>
/// <param name="ignore"></param>
/// <returns></returns>
public static bool PropertiesEqual<T>(this T self, T to, params string[] ignore) where T : class
{
if (self != null && to != null)
{
var type = typeof(T);
var ignoreList = new List<string>(ignore);
var unequalProperties =
from pi in type.GetProperties(BindingFlags.Public | BindingFlags.Instance)
where !ignoreList.Contains(pi.Name) && pi.GetUnderlyingType().IsSimpleType() && pi.GetIndexParameters().Length == 0
let selfValue = type.GetProperty(pi.Name).GetValue(self, null)
let toValue = type.GetProperty(pi.Name).GetValue(to, null)
where selfValue != toValue && (selfValue == null || !selfValue.Equals(toValue))
select selfValue;
return !unequalProperties.Any();
}
return self == to;
}
/// <summary>
/// Type 을 단순하게 변경합니다.
/// </summary>
private static bool IsSimpleType(this Type type)
{
return
type.IsValueType ||
type.IsPrimitive ||
new[] {typeof(String),typeof(Decimal),typeof(DateTime),typeof(DateTimeOffset),typeof(TimeSpan),typeof(Guid)}.Contains(type) ||
(Convert.GetTypeCode(type) != TypeCode.Object);
}
/// <summary>
/// MemberType 에 따라 Type 을 반환합니다.
/// </summary>
/// <param name="member"></param>
/// <returns></returns>
private static Type GetUnderlyingType(this MemberInfo member)
{
switch (member.MemberType)
{
case MemberTypes.Event:
return ((EventInfo)member).EventHandlerType;
case MemberTypes.Field:
return ((FieldInfo)member).FieldType;
case MemberTypes.Method:
return ((MethodInfo)member).ReturnType;
case MemberTypes.Property:
return ((PropertyInfo)member).PropertyType;
default:
throw new ArgumentException
(
"Input MemberInfo must be if type EventInfo, FieldInfo, MethodInfo, or PropertyInfo"
);
}
}
}
사용은 T class 가 있을때 AT, BT 를 비교한다고 할때
bool isEqual = AT.PropertiesEqual<T>(BT);
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