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First, create a class containing two members: value and id.  Value is what is displayed in the combobox while id is associated with that value.  I like to create a “global” class to contain properties and classes that is used through out the project. 

In this case, I have a class defined as clsCHTLCommon.  In this class, I’ve defined this class:

   1:  using System;
   2:  using System.Collections.Generic;
   3:  using System.Linq;
   4:  using System.Text;
   5:  using System.Data;
   6:  using baseSql;
   7:   
   8:  namespace CHTL_HMI
   9:  {
  10:      public class clsCHTLCommon
  11:      {
  12:   
  13:          
  14:          public clsCHTLCommon() 
  15:          {
  16:          }
  17:   
  18:   
  19:      }
  20:   
  21:      public class TrkItems
  22:      {
  23:          public string Value { get; set; }
  24:          public int Id { get; set; }
  25:      }
  26:   
  27:      public class SelectedTrkItems
  28:      {
  29:          public string ChargeCoilNumber { get; set; }
  30:          public int ScheduledCoilKey { get; set; }
  31:          public int ChargeCoilKey { get; set; }
  32:          public int CCSN { get; set; }
  33:      }
  34:  }

Now, define a list based upon the class and fill it in with TrkItems:

   1:  List<TrkItems > itemHeadCollection = new List<TrkItems >();
   2:   
   3:  for (i = clsGlobalDefs .TrkZone.WELDER; i < clsGlobalDefs.TrkZone .TC1; i++)
   4:  {
   5:       TrkItems cboItem = new TrkItems();
   6:   
   7:        cboItem.Value = GlobalDefs.L2TrkZoneNames[i - 1];
   8:         cboItem.Id = i;
   9:          itemHeadCollection.Add(cboItem);
  10:   
  11:  }

 

Next, set the combobox DataSource to the List and set  the DisplayMember to the value data member in the TrkItems class:

   1:  cboHead.DataSource = itemHeadCollection;
   2:  cboHead.DisplayMember = "Value";
Posted on Tuesday, April 5, 2011 3:47 PM | Back to top


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