递归调用 动态绑定treelist控件

贾林朋

本文以例子的形式介绍如何通过递归动态的生成树状结构，填充树，递归调用中传递的参数可以根据实际的需求改变
并不一定是intl 类型，写的不好欢迎大神批评指正
第一步定义绑定树结构用的类

[C#] 纯文本查看 复制代码

public class Employee
    {
        public int IDS { get; set; }
        public int ParentIDS { get; set; }
        public string Name { get; set; }
        public string Position { get; set; }
        public string Department { get; set; }
        public int Age { get; set; }
        public override string ToString()
        {
            return string.Format("姓名：{0}",Name);
        }
    }

第二部创建绑定树结构的数据源

[C#] 纯文本查看 复制代码

public static class Stuff
    {
        public static List<Employee> GetStuff()
        {
            List<Employee> stuff = new List<Employee>();
            stuff.Add(new Employee() { IDS = 1, ParentIDS = 0, Name = "Gregory S. Price", Department = "", Position = "President", Age = 57 });
            stuff.Add(new Employee() { IDS = 2, ParentIDS = 1, Name = "Irma R. Marshall", Department = "Marketing", Position = "Vice President", Age = 45 });
            stuff.Add(new Employee() { IDS = 3, ParentIDS = 1, Name = "John C. Powell", Department = "Operations", Position = "Vice President", Age = 43 });
            stuff.Add(new Employee() { IDS = 4, ParentIDS = 1, Name = "Christian P. Laclair", Department = "Production", Position = "Vice President", Age = 38 });
            stuff.Add(new Employee() { IDS = 5, ParentIDS = 1, Name = "Karen J. Kelly", Department = "Finance", Position = "Vice President", Age = 55 });

            stuff.Add(new Employee() { IDS = 6, ParentIDS = 2, Name = "Brian C. Cowling", Department = "Marketing", Position = "Manager", Age = 35 });
            stuff.Add(new Employee() { IDS = 7, ParentIDS = 2, Name = "Thomas C. Dawson", Department = "Marketing", Position = "Manager", Age = 40 });
            stuff.Add(new Employee() { IDS = 8, ParentIDS = 2, Name = "Angel M. Wilson", Department = "Marketing", Position = "Manager", Age = 32 });
            stuff.Add(new Employee() { IDS = 9, ParentIDS = 2, Name = "Bryan R. Henderson", Department = "Marketing", Position = "Manager", Age = 28 });

            stuff.Add(new Employee() { IDS = 10, ParentIDS = 3, Name = "Harold S. Brandes", Department = "Operations", Position = "Manager", Age = 27 });
            stuff.Add(new Employee() { IDS = 11, ParentIDS = 3, Name = "Michael S. Blevins", Department = "Operations", Position = "Manager", Age = 31 });
            stuff.Add(new Employee() { IDS = 12, ParentIDS = 3, Name = "Jan K. Sisk", Department = "Operations", Position = "Manager", Age = 44 });
            stuff.Add(new Employee() { IDS = 13, ParentIDS = 3, Name = "Sidney L. Holder", Department = "Operations", Position = "Manager", Age = 24 });

            stuff.Add(new Employee() { IDS = 14, ParentIDS = 4, Name = "James L. Kelsey", Department = "Production", Position = "Manager", Age = 27 });
            stuff.Add(new Employee() { IDS = 15, ParentIDS = 4, Name = "Howard M. Carpenter", Department = "Production", Position = "Manager", Age = 33 });
            stuff.Add(new Employee() { IDS = 16, ParentIDS = 4, Name = "Jennifer T. Tapia", Department = "Production", Position = "Manager", Age = 22 });

            stuff.Add(new Employee() { IDS = 17, ParentIDS = 5, Name = "Judith P. Underhill", Department = "Finance", Position = "Manager", Age = 41 });
            stuff.Add(new Employee() { IDS = 18, ParentIDS = 5, Name = "Russell E. Belton", Department = "Finance", Position = "Manager", Age = 36 });

            stuff.Add(new Employee() { IDS = 19, ParentIDS = 6, Name = "Russell E. Belton", Department = "Finance", Position = "Manager", Age = 36 });
            return stuff;
        }
    }

第三部绑定树状结构

[C#] 纯文本查看 复制代码

     #region TreeList 多节点绑定
        /// <summary>
         /// treeList绑定
         /// </summary>
         /// <param name="parent">父ID</param>
         private void TreeListBind(int parent)
         {
             treeList1.Nodes.Clear();
             if (collection.Count < 1)
                 return;
             var items = from s in collection where s.ParentIDS == parent
                         select s;
             if (items.Count() < 1)
                 return;
             foreach (var st in items)
             {
                 TreeListNode tn = treeList1.AppendNode(st.IDS, null);
                 tn.SetValue(ptreecolumn, st.Name);
                 tn.Tag = st; //目的：为了方便的得到对应的类的实例，可以更具需要动态的改变
                 GetCentralChild(tn, st.IDS);
             }
             treeList1.ExpandAll();
         }
 
         private void GetCentralChild(TreeListNode tn, int parent)
         {
             var items = from s in collection   where s.ParentIDS == parent
                         select s;
             if (items.Count() < 1)
                 return;
             foreach (var st in items)
             {
                 TreeListNode tns = tn.TreeList.AppendNode(st.IDS, tn);
                 tns.SetValue(ptreecolumn, st.Name);
                 tns.Tag = st;
                 GetCentralChild(tns, st.IDS);   
             }
         }
        #endregion

调用方法
窗体中声明

[C#] 纯文本查看 复制代码

 List<Employee> collection;
        TreeListColumn ptreecolumn = new TreeListColumn();

构造函数内初始化ptreecolumn对象

[C#] 纯文本查看 复制代码

 ptreecolumn.Name = "hello";
            ptreecolumn.FieldName = "你好";
            ptreecolumn.Caption = "你好";
            ptreecolumn.Visible = true;
            ptreecolumn.VisibleIndex = 0;
            this.treeList1.Columns.AddRange(new DevExpress.XtraTreeList.Columns.TreeListColumn[] { ptreecolumn });

最后在窗体加载事件内调用

[C#] 纯文本查看 复制代码

 collection = Stuff.GetStuff();
            TreeListBind(0);

羽叶

支持代码教程！

hussainzagzoug

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