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：[email protected]

 *******************************************************************/

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:\r\n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:\r\n索引:" + comboBox2.SelectedIndex + ",值SelectedValue:" + comboBox2.SelectedValue + ",文本Text:" + comboBox2.Text + ",SelectedItem:" + comboBox2.SelectedItem.ToString());

        }

    }

}

View Code

 

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;

    }

}

View Code

 

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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