Question

C#中 combobox 显示数值和实际值怎么绑定

比如显示 中国对应值CN，即显示给用户看的是 "中国 "，实际值是CN 求代码

Answer 1

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

namespace ClientDemo
{
    public partial class Setting : Office2007Form
    {
        private int start;
        private int process;
        private int end;
        private int faceQuality;
        private int faceConfidence;
        private int processIncrement;
        private int endIncrement;
        private int interval;
        private int resolution;

        public Setting()
        {
            InitializeComponent();
            /// <summary>
            /// 0=CIF, 1=QCIF, 2=D1 3=UXGA(1600x1200), 4=SVGA(800x600), 5=HD720p(1280x720),6=VGA
            /// IPCAM专用{3=UXGA(1600x1200), 4=SVGA(800x600), 5=HD720p(1280x720),6=VGA(640x480) , 7=XVGA, 8=HD900p }
            /// </summary>
            ArrayList al = new ArrayList();
            al.Add(new TextAndValue("CIF(352*288)", "0"));
            al.Add(new TextAndValue("QCIF(176*144)", "1"));
            al.Add(new TextAndValue("4CIF(704*576)", "2"));
            al.Add(new TextAndValue("UXGA(1600*1200)", "3"));
            al.Add(new TextAndValue("SVGA(800*600)", "4"));
            al.Add(new TextAndValue("HD720P(1280*720)", "5"));
            al.Add(new TextAndValue("VGA(640*480)", "6"));
            al.Add(new TextAndValue("XVGA(1280*960)", "7"));
            al.Add(new TextAndValue("HD900P(1600*912)", "8"));

            cboResolution.DataSource = al;
            cboResolution.DisplayMember = "DisplayText";
            cboResolution.ValueMember = "RealValue";
        }

        private void Setting_Load(object sender, EventArgs e)
        {
            DBColection.getConfigList();
            foreach (DBColection.TraceConfig tc in DBColection.configList)
            {
                if (tc.ParamType == "Start") txtMinStartTraceStart.Text = tc.Start.ToString();
                else if (tc.ParamType == "Process")
                {
                    txtMinStartTraceProcess.Text = tc.Start.ToString();
                    nudProcessIncrement.Value = (decimal)tc.Step;
                }
                else if (tc.ParamType == "End")
                {
                    txtMinStartTraceEnd.Text = tc.Start.ToString();
                    nudEndIncrement.Value = (decimal)tc.Step;
                }
                else if (tc.ParamType == "FaceQuality") txtFaceQuality.Text = tc.Start.ToString();
                else if (tc.ParamType == "FaceConfidence") txtFaceConfidence.Text = tc.Start.ToString();
                else if (tc.ParamType == "Interval") txtInterval.Text = tc.Start.ToString();
                else if (tc.ParamType == "Resolution")
                    cboResolution.SelectedValue = tc.Start.ToString();
            }
        }

        private void btncancel_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void btnok_Click(object sender, EventArgs e)
        {
            start = Convert.ToInt32(txtMinStartTraceStart.Text.Trim().ToString());
            process = Convert.ToInt32(txtMinStartTraceProcess.Text.Trim().ToString());
            end = Convert.ToInt32(txtMinStartTraceEnd.Text.Trim().ToString());
            faceQuality = Convert.ToInt32(txtFaceQuality.Text.Trim().ToString());
            faceConfidence = Convert.ToInt32(txtFaceConfidence.Text.Trim().ToString());
            processIncrement = Convert.ToInt32(nudProcessIncrement.Value.ToString());
            endIncrement = Convert.ToInt32(nudEndIncrement.Value.ToString());
            interval = Convert.ToInt32(txtInterval.Text.Trim().ToString());
            resolution = Convert.ToInt16(cboResolution.SelectedValue.ToString());
            DBColection.updateConfigList(start, process, end, faceQuality, faceConfidence, processIncrement, endIncrement, interval, resolution);
        }

        private void cboResolution_SelectedIndexChanged(object sender, EventArgs e)
        {
            resolution = Convert.ToInt16(cboResolution.SelectedValue.ToString());
        }

    }
    class TextAndValue
    {
        private string _RealValue = "";
        private string _DisplayText = "";

        public string DisplayText
        {
            get
            {
                return _DisplayText;
            }
        }

        public string RealValue
        {
            get
            {
                return _RealValue;
            }
        }

        public TextAndValue(string ShowText, string RealVal)
        {
            _DisplayText = ShowText;
            _RealValue = RealVal;
        }

        public override string ToString()
        {
            return _RealValue.ToString();
        }

    }
}

Answer 2

使用绑定数据集，如你要绑定的数据集为dv对象（DataView），其中包含ID和Name两列数据，分别为实际值和显示文本。combobox的对象名为cmb，实现代码如下：
cmb.DataSource=dv;
cmb.DisplayMember="Name";
cmb.ValueMember="ID";
cmb.DataBind();

Answer 3

您好，很高兴为您解答！

思路如1，代码如2所示：

1. 使用绑定数据集，如你要绑定的数据集为dv对象（DataView），其中包含ID和Name两列数据，分别为实际值和显示文本。

2. combobox的对象名为cmb，实现代码如下：
   cmb.DataSource=dv;
   cmb.DisplayMember="Name";
   cmb.ValueMember="ID";
   cmb.DataBind();

Answer 4

this.comboBox1.DisplayMember = "显示出来那个字段";
this.comboBox1.ValueMember = "这个是对应那个value值，通常也就是id值";
this.comboBox1.DataSource=数据源;
接下来绑定数据

Answer 5

你就写个结构体
struct Combo
{
string Show;
string Hide;
}
然后定义个此类型的数组，把你所有的配对都存进去。