2023-04-13 11:51:03 +08:00
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using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.ComponentModel;
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using System.Linq;
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2023-05-10 16:21:45 +08:00
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using MECF.Framework.UI.Client.RecipeEditorLib.RecipeModel.Params;
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using Sicentury.Core;
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2023-04-13 11:51:03 +08:00
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2023-05-10 16:21:45 +08:00
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namespace MECF.Framework.UI.Client.RecipeEditorLib.RecipeModel
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{
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2023-05-10 23:51:33 +08:00
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/// <summary>
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/// 配方步骤集合。
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/// </summary>
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/// <remarks>
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/// 该集合继承自<see cref="ObservableCollection{T}"/>。
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/// </remarks>
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public sealed class RecipeStepCollection : ObservableCollection<RecipeStep>
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{
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#region Variables
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private bool _isSaved;
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private bool _isHideValue;
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#endregion
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#region Constructors
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/// <summary>
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/// 创建配方步骤集合的实例。
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/// </summary>
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public RecipeStepCollection()
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{
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_isSaved = true;
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}
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/// <summary>
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/// 创建配方步骤集合的实例。
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/// </summary>
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/// <param name="parent">
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/// 父级配方对象,请参考<see cref="RecipeData"/>。
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/// </param>
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public RecipeStepCollection(RecipeData parent) : this()
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{
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Parent = parent;
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}
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/// <summary>
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/// 创建配方步骤集合的实例。
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/// </summary>
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/// <param name="steps">配方步骤数组。</param>
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/// <param name="parent">
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/// 父级配方对象,请参考<see cref="RecipeData"/>。
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/// </param>
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public RecipeStepCollection(IList<RecipeStep> steps, RecipeData parent)
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: base(steps)
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{
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_isSaved = true;
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Parent = parent;
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foreach (var step in steps)
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step.Parent = parent;
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}
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#endregion
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#region Properties
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/// <summary>
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/// 返回父级配方对象的实例。
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/// </summary>
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public RecipeData Parent { get; }
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/// <summary>
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/// 返回当前配方是否已经被保存。
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/// </summary>
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public bool IsSaved
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{
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get => _isSaved;
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private set
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{
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_isSaved = value;
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OnPropertyChanged(new PropertyChangedEventArgs(nameof(IsSaved)));
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}
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}
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/// <summary>
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/// 返回被选中的配方步骤。
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/// </summary>
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public IReadOnlyList<RecipeStep> SelectedSteps =>
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this.ToList().Where(x => x.StepNoParam != null && x.StepNoParam.IsChecked).ToList();
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/// <summary>
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/// 返回是否隐藏所有步骤的参数值。
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/// </summary>
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public bool IsHideValue
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{
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get => _isHideValue;
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set
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{
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_isHideValue = value;
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this.ToList().ForEach(x => x.IsHideValue = value);
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}
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}
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#endregion
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#region Methods
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/// <summary>
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/// 当配方中的某步骤的IsSaved状态发生变化时,触发此事件。
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void ItemOnSavedStateChanged(object sender, bool e)
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{
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if (e == false)
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IsSaved = false;
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else
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IsSaved = (this.ToList().FirstOrDefault(x => x.IsSaved == false) == null);
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}
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/// <summary>
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/// 更新Step序列号。
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/// </summary>
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/// <param name="markAsSaved"></param>
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public void UpdateStepIndex(bool markAsSaved = false)
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{
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var step = this.FirstOrDefault();
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var stepNo = step?.StepNoParam;
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if (stepNo == null)
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return;
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var index = 1;
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while (true)
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{
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stepNo.Value = index;
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if (markAsSaved)
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stepNo.Save();
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//! 最后一个步骤的Next应该为Null,此时跳出循环。
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if (stepNo.Next is StepParam nextParam)
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stepNo = nextParam;
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else
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break;
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index++;
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}
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}
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/// <summary>
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/// 保存当前配方。
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/// </summary>
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public void Save()
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{
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this.ToList().ForEach(x => x.Save());
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}
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/// <summary>
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/// 取消所有参数的Highlight状态。
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/// </summary>
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public void ResetHighlight()
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{
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this.ToList().ForEach(x => x.ResetHighlight());
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}
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/// <summary>
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/// 计算被赋予访问权限的配方参数。
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/// </summary>
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/// <returns></returns>
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public int GetParamsCountWhoHaveAccessPerm()
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{
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var total = this.ToList().Sum(x => x.GetHighlightedParams().Count);
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return total;
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}
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#endregion
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#region Overrided Methods
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/// <summary>
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///
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/// </summary>
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/// <param name="previous"></param>
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/// <param name="next"></param>
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private static void LinkSteps(RecipeStep previous, RecipeStep next)
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{
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if (previous != null && next != null)
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{
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previous.SetNextStep(next);
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next.SetPreviousStep(previous);
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}
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else if (previous == null && next != null)
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{
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next.SetPreviousStep(null);
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}
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else
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{
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previous?.SetNextStep(null);
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}
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}
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protected override void SetItem(int index, RecipeStep item)
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{
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throw new NotSupportedException();
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}
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protected override void InsertItem(int index, RecipeStep item)
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{
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if (item != null)
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{
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// 如果Step没有分配Uid,先分配一个。
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if (string.IsNullOrEmpty(item.StepUid))
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{
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// 尝试20次,如果均重号,则报错。
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var retry = 0;
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for (retry = 0; retry < 20; retry++)
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{
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var uid = GlobalDefs.GetShortUid();
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if (this.FirstOrDefault(x => x.StepUid == uid) == null)
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{
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item.StepUid = uid;
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break;
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}
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}
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if (retry == 20)
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throw new Exception("unable to add recipe step since the exclusive UID can not be assigned.");
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}
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}
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base.InsertItem(index, item);
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if (item != null)
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{
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item.Parent = Parent;
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item.SavedStateChanged += ItemOnSavedStateChanged;
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if (index > 0 && index < Count - 1)
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{
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LinkSteps(this[index - 1], this[index]);
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LinkSteps(this[index], this[index + 1]);
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}
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else if (index == 0)
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{
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if (Count > 1)
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{
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LinkSteps(null, this[index]);
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LinkSteps(this[index], this[index + 1]);
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}
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else
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{
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LinkSteps(null, this[index]);
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LinkSteps(this[index], null);
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}
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}
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else if (index == Count - 1)
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{
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LinkSteps(this[index - 1], this[index]);
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LinkSteps(this[index], null);
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}
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}
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UpdateStepIndex();
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this[index].Validate();
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}
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protected override void RemoveItem(int index)
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{
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if (Count > 0)
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{
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if (index >= 0 && index < Count)
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{
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this[index].SavedStateChanged -= ItemOnSavedStateChanged;
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}
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}
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IsSaved = false;
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// 将前后两个Param链接起来
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var preStep = this[index].Previous;
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var nextStep = this[index].Next;
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LinkSteps(preStep, nextStep);
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preStep?.Validate();
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nextStep?.Validate();
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base.RemoveItem(index);
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UpdateStepIndex();
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}
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protected override void ClearItems()
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{
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if (Count > 0)
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{
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this.ToList().ForEach(x => x.SavedStateChanged -= ItemOnSavedStateChanged);
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IsSaved = false;
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}
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else
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{
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IsSaved = true;
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}
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base.ClearItems();
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}
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protected override void MoveItem(int oldIndex, int newIndex)
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{
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throw new NotSupportedException();
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}
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#endregion
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}
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}
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