C# 将Dictionary,StringDictionary等集合数据绑定到如comboBox等控件数据源中将获取健值

一般在使用C#提供的如combobx控件绑定数据源时都是直接绑定数据库里的数据的（DataTable,DataSet等）

最近在一个项目里需要使用combobox绑定类似“状态的”数据源,该字段里的数据最不可变，所以不需要从数据库里获取数据

由于字段只需要健值没有其他信息所以使用Dictionary是最合适不过了,但如何将集合里的数据绑定并再获取集合里的健值呢？

在google搜索一番并找到解决方案：

 System.Collections.Generic.Dictionary<string, string> dict = new System.Collections.Generic.Dictionary<string, string>();
            dict.Add("baidu.com", "百度");
            dict.Add("goolge.com", "谷歌");
            dict.Add("qq.com", "腾讯");
            //绑定数据
            comboBox1.DataSource = new BindingSource(dict, null);
            comboBox1.ValueMember = "Key";//文本对应的值
            comboBox1.DisplayMember = "Value";//显示的文本
            //绑定选择事件
            comboBox1.SelectedIndexChanged += new EventHandler(comboBox1_SelectedIndexChanged);
            //专门存储字符串健值的集合类
            //健值都是string类型
            System.Collections.Specialized.StringDictionary sd = new System.Collections.Specialized.StringDictionary();
            sd.Add("taobao.com", "淘宝");
            sd.Add("tamll.com", "天猫");
            sd.Add("jd.com", "京东");
            comboBox2.DataSource = new BindingSource(sd, null);
            comboBox2.ValueMember = "Key";
            comboBox2.DisplayMember = "Value";
            comboBox2.SelectedIndexChanged += new EventHandler(comboBox2_SelectedIndexChanged);

完整代码：

/******************************************************************
 * 创建人：黄愿
 * 创建时间：2014-9-9 11:34:39
 * 说明：C# 将Dictionary,StringDictionary等集合数据绑定到如comboBox等控件数据源中
 * Email：huangyuan413026@163.com
 *******************************************************************/
using System;
using System.Windows.Forms;
namespace HTL
{
    public partial class BindDictionaryToDatasource : Form
    {
        public BindDictionaryToDatasource()
        {
            InitializeComponent();
        }
        private void BindDictionaryToDatasource_Load(object sender, EventArgs e)
        {
            System.Collections.Generic.Dictionary<string, string> dict = new System.Collections.Generic.Dictionary<string, string>();
            dict.Add("baidu.com", "百度");
            dict.Add("goolge.com", "谷歌");
            dict.Add("qq.com", "腾讯");
            //绑定数据
            comboBox1.DataSource = new BindingSource(dict, null);
            comboBox1.ValueMember = "Key";//文本对应的值
            comboBox1.DisplayMember = "Value";//显示的文本  
            //绑定选择事件
            comboBox1.SelectedIndexChanged += new EventHandler(comboBox1_SelectedIndexChanged);
            //专门存储字符串健值的集合类
            //健值都是string类型
            System.Collections.Specialized.StringDictionary sd = new System.Collections.Specialized.StringDictionary();
            sd.Add("taobao.com", "淘宝");
            sd.Add("tamll.com", "天猫");
            sd.Add("jd.com", "京东");
            comboBox2.DataSource = new BindingSource(sd, null);
            comboBox2.ValueMember = "Key";
            comboBox2.DisplayMember = "Value";
            comboBox2.SelectedIndexChanged += new EventHandler(comboBox2_SelectedIndexChanged);
        }
        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            MessageBox.Show("comboBox1信息如下:
索引:" + comboBox1.SelectedIndex + ",值SelectedValue:" + comboBox1.SelectedValue + ",文本Text:" + comboBox1.Text + ",SelectedItem:" + comboBox1.SelectedItem.ToString());
        }
        private void comboBox2_SelectedIndexChanged(object sender, EventArgs e)
        {
            MessageBox.Show("comboBox2信息如下:
索引:" + comboBox2.SelectedIndex + ",值SelectedValue:" + comboBox2.SelectedValue + ",文本Text:" + comboBox2.Text + ",SelectedItem:" + comboBox2.SelectedItem.ToString());
        }
    }
}

设计代码：

namespace HTL
{
    partial class BindDictionaryToDatasource
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;
        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }
        #region Windows Form Designer generated code
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.comboBox1 = new System.Windows.Forms.ComboBox();
            this.comboBox2 = new System.Windows.Forms.ComboBox();
            this.SuspendLayout();
            // 
            // comboBox1
            // 
            this.comboBox1.FormattingEnabled = true;
            this.comboBox1.Location = new System.Drawing.Point(107, 69);
            this.comboBox1.Name = "comboBox1";
            this.comboBox1.Size = new System.Drawing.Size(121, 20);
            this.comboBox1.TabIndex = 0;
            // 
            // comboBox2
            // 
            this.comboBox2.FormattingEnabled = true;
            this.comboBox2.Location = new System.Drawing.Point(107, 127);
            this.comboBox2.Name = "comboBox2";
            this.comboBox2.Size = new System.Drawing.Size(121, 20);
            this.comboBox2.TabIndex = 1;
            // 
            // BindDictionaryToDatasource
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(292, 273);
            this.Controls.Add(this.comboBox2);
            this.Controls.Add(this.comboBox1);
            this.Name = "BindDictionaryToDatasource";
            this.Text = "BindDictionaryToDatasource";
            this.Load += new System.EventHandler(this.BindDictionaryToDatasource_Load);
            this.ResumeLayout(false);
        }
        #endregion
        private System.Windows.Forms.ComboBox comboBox1;
        private System.Windows.Forms.ComboBox comboBox2;
    }
}

参考：

http://madprops.org/blog/Bind-a-ComboBox-to-a-generic-Dictionary/

http://social.msdn.microsoft.com/Forums/vstudio/en-US/b99c3ba8-683e-4ec7-aa52-6873e173bdcc/binding-a-generic-dictionary-to-a-combo-box?forum=csharpgeneral

http://stackoverflow.com/questions/6412739/binding-combobox-using-dictionary-as-the-datasource?answertab=active#tab-top

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