Combobox binding (See related posts)

   1  
   2  // insert code here..
   3  Bind a ComboBox to an array of State objects
   4  
   5      namespace Akadia.ComboBoxBinding
   6      {
   7  
   8          using System;
   9          using System.ComponentModel;
  10          using System.Drawing;
  11          using System.Windows.Forms;
  12          using System.Data;
  13          using System.Data.SqlClient;
  14  
  15          public class ComboBoxBinding : System.Windows.Forms.Form
  16          {
  17              .....
  18  
  19              // Lookup "Table" with States for the Comobox
  20              public struct State
  21              {
  22                  private string _shortName, _longName;
  23  
  24                  public State(string longName , string shortName)
  25                  {
  26                      this._shortName = shortName;
  27                      this._longName = longName;
  28                  }
  29  
  30                  public string ShortName { get { return _shortName; } }
  31                  public string LongName { get { return _longName; } }
  32              }
  33  
  34              // Define the Array of States for the DropDown List
  35              public State[] States  = new State[] {
  36                     new State("Alabama","AL")
  37                    ,new State("Alaska","AK")
  38                    ,new State("Arizona" ,"AZ")
  39                    ,new State("Arkansas","AR")
  40                    ,new State("California" ,"CA")
  41                    ......
  42              } ;
  43  
  44              public ComboBoxBinding()
  45              {
  46  
  47                  .......
  48  
  49                  // Populate the list
  50                  comboBoxState.DataSource = States;
  51  
  52                  // Define the field to be displayed
  53                  comboBoxState.DisplayMember = "LongName";
  54  
  55                  // Define the field to be used as the value
  56                  comboBoxState.ValueMember = "ShortName";
  57  
  58                  // Bind the selected value of the the ComboBox to the
  59                  // Region field of the current Customer
  60                  comboBoxState.DataBindings.Add("SelectedValue", customersDataSet1, "Customers.Region");
  61  
  62                  ........
  63              }
  64          }
  65      }
  66