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MyCode.Project.Infrastructure/Trees/ITreeContext.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MyCode.Project.Infrastructure.Trees
+{
+    /// <summary>
+    /// 树节点上下文
+    /// </summary>
+    /// <typeparam name="T">实体类型</typeparam>
+    /// <typeparam name="TOuter">输出实体类型</typeparam>
+    public interface ITreeContext<T, TOuter>
+    {
+        /// <summary>
+        /// 数据源
+        /// </summary>
+        List<TreeNode<TOuter>> Data { get; set; }
+
+        /// <summary>
+        /// 当前节点
+        /// </summary>
+        TreeNode<TOuter> Current { get; set; }
+
+        /// <summary>
+        /// 分隔符
+        /// </summary>
+        string Separator { get; set; }
+
+        /// <summary>
+        /// 设置树节点列表数据源
+        /// </summary>
+        /// <typeparam name="TKey">键类型</typeparam>
+        /// <param name="collection">数据源</param>
+        /// <param name="textSelector">显示文本选择器</param>
+        /// <param name="idSelector">ID选择器</param>
+        /// <param name="parentIdSelector">父ID选择器</param>
+        /// <returns></returns>
+        ITreeContext<T, TOuter> SetItems<TKey>(List<T> collection, Func<T, string> textSelector,
+            Func<T, TKey> idSelector, Func<T, TKey> parentIdSelector);
+
+        /// <summary>
+        /// 设置树节点列表数据源
+        /// </summary>
+        /// <typeparam name="TKey">键类型</typeparam>
+        /// <param name="collection">数据源</param>
+        /// <param name="textSelector">显示文本选择器</param>
+        /// <param name="idSelector">ID选择器</param>
+        /// <param name="parentIdSelector">父ID选择器</param>
+        /// <param name="convertSelector">转换选择器</param>
+        /// <returns></returns>
+        ITreeContext<T, TOuter> SetItems<TKey>(List<T> collection, Func<T, string> textSelector,
+            Func<T, TKey> idSelector, Func<T, TKey> parentIdSelector, Func<T, TOuter> convertSelector);
+
+        /// <summary>
+        /// 获取当前树节点
+        /// </summary>
+        /// <returns></returns>
+        TreeNode<TOuter> GetTreeNode();
+
+        /// <summary>
+        /// 获取树节点
+        /// </summary>
+        /// <returns></returns>
+        List<TreeNode<TOuter>> GetTrees();
+    }
+
+    /// <summary>
+    /// 树节点上下文
+    /// </summary>
+    /// <typeparam name="T">实体类型</typeparam>
+    public interface ITreeContext<T> : ITreeContext<T, T>
+    {
+    }
+}