优化InnerWindow的Resize；

chr

2024-03-07 40213047b1cee48144c5a1eee1778ada6f609ca1

 Models/Step.cs

@@ -1,14 +1,12 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Serialization;

namespace WPFProject.Models
{
    public class Step : NotifyBase
    {

        #region 字段
        [XmlIgnore]
        public Program Program { get; set; }

        private int _Index;

        public int Index