using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace WPFDemo.Bb
{
    [AttributeUsage(AttributeTargets.Property)]
    public class DataGridColumnOrderAttribute : Attribute
    {
        public static readonly DataGridColumnOrderAttribute Default = new DataGridColumnOrderAttribute(0);

        public DataGridColumnOrderAttribute(int order)
        {
            DataGridColumnOrderValue = order;
        }

        public virtual int DataGridColumnOrder => DataGridColumnOrderValue;

        protected int DataGridColumnOrderValue { get; set; }

        public override bool Equals(object obj)
        {
            if (obj == this)
            {
                return true;
            }

            return obj is DataGridColumnOrderAttribute other && other.DataGridColumnOrder == DataGridColumnOrder;
        }

        public override int GetHashCode()
        {
            return DataGridColumnOrder.GetHashCode();
        }

        public override bool IsDefaultAttribute()
        {
            return Equals(Default);
        }
    }
}