ComboBox与TreeView组合控件 ComboBoxTree(转帖)

平时常用无限级分类，只是这个无限级树，每次都得拖ComboBox，设置，拖TreeView，再设置，代码里也得整来整去，很是麻烦，也很是不爽，所以改造下。

不过我的水平想组合这两个东西，可太有难度了，所以还是上网上找到，在CodeProject上找到一个评价还不错的，拿下来修改，改造了两天，终于可以很方便的使用了。

不过还是我的水平问题，这个控件使用的东西很多理解不了，所以感觉改的不是很好，只能说能很方便的使用。

调用方法：

填充：comboBoxTree1.Fill(DataTable dt, object ParentID)

        ///

        /// 填充Tree
        ///

        /// 父级编号
        /// 格式，三列，Id,Name,ParentId,只要顺序一样就可以了
        public void Fill(DataTable dt, object ParentID)

设置值：SelectedByValue(object value, object text)

        ///

        /// 根据值来查找
        ///

        /// 值
        /// Text可以随便写,当然，最好是什么就写什么
        public void SelectedByValue(object value, object text)

取值：Text,Value,FullPath

comboBoxTree1.Value
comboBoxTree1.Text
comboBoxTree1.FullPath

主要代码太多，这里只发他的调用方法吧：

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1. using System;  
2. using System.Collections.Generic;  
3. using System.ComponentModel;  
4. using System.Data;  
5. using System.Data.SqlClient;  
6. using System.Drawing;  
7. using System.Text;  
8. using System.Windows.Forms;  
10. namespace Demo  
11. {  
12. public partial class Form1 : Form  
13.     {  
14. public Form1()  
15.         {  
16.             InitializeComponent();  
17.         }  
19. private void Form1_Load(object sender, EventArgs e)  
20.         {  
21.             comboBoxTree1.Fill(GetDataTable(), "0");  
22.         }  
24. private void btnGet_Click(object sender, EventArgs e)  
25.         {  
26.             MessageBox.Show(  
27. "Value:"+comboBoxTree1.Value+  
28. "\nText:"+comboBoxTree1.Text+  
29. "\nFullPath:"+comboBoxTree1.FullPath  
31.                 );  
32.         }  
34. private void btnSet_Click(object sender, EventArgs e)  
35.         {  
36. //comboBoxTree1.SelectedByValue(3, "Name333");
37.             comboBoxTree1.SelectedByValue(3, "Name3");  
38.         }  
42. private DataTable GetDataTable()  
43.         {  
45. string[,] array3D = {   
46.                                 { "1", "ComboBoxTree1", "0"},   
47.                                 { "2", "ComboBoxTree2", "1"},   
48.                                 { "3", "ComboBoxTree3", "1"},   
49.                                 { "4", "ComboBoxTree4", "2"},   
50.                                 { "5", "ComboBoxTree5", "2"},   
51.                                 { "6", "ComboBoxTree6", "5"},   
52.                                 };  
53. return ArrayToDataTable.ArrayToDataTable.Convert(array3D);  
54.         }  
56. private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)  
57.         {  
58.             System.Diagnostics.Process.Start("Iexplore.exe", "http://www.yongfa365.com/");  
59.         }  
61.     }  
62. } 

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace Demo
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            comboBoxTree1.Fill(GetDataTable(), "0");
        }

        private void btnGet_Click(object sender, EventArgs e)
        {
            MessageBox.Show(
                "Value:"+comboBoxTree1.Value+
                "\nText:"+comboBoxTree1.Text+
                "\nFullPath:"+comboBoxTree1.FullPath
                
                );
        }

        private void btnSet_Click(object sender, EventArgs e)
        {
            //comboBoxTree1.SelectedByValue(3, "Name333");
            comboBoxTree1.SelectedByValue(3, "Name3");
        }



        private DataTable GetDataTable()
        {

            string[,] array3D = { 
                                { "1", "ComboBoxTree1", "0"}, 
                                { "2", "ComboBoxTree2", "1"}, 
                                { "3", "ComboBoxTree3", "1"}, 
                                { "4", "ComboBoxTree4", "2"}, 
                                { "5", "ComboBoxTree5", "2"}, 
                                { "6", "ComboBoxTree6", "5"}, 
                                };
            return ArrayToDataTable.ArrayToDataTable.Convert(array3D);
        }

        private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
        {
            System.Diagnostics.Process.Start("Iexplore.exe", "http://www.yongfa365.com/");
        }

    }
}

演示文件及相关源码下载地址：ComboBoxTree.rar

主要代码来源与：http://www.codeproject.com/KB/miscctrl/CSDropDownPanel.aspx