C# WinForm 技巧六：根据Enum绑定DropDownList

一、摘要

      

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二、方法一

 

绑定

1:  enum TestEnum {zero=0,one=1,two=2}       

2:  ComboBox cbo = new ComboBox(); 

3:  cbo.DataSource = System.Enum.GetNames(typeof(TestEnum));

4:  TestEnum  test = TestEnum .one; 

5:  cbo.SelectedIndex = this.cbo.FindString(test.ToString());

6:   

取值

1:  TestEnum testenum = (TestEnum)Enum.Parse(typeof(TestEnum) ,cbo.SelectedItem.ToString() ,false)

 

二、方法二

 

反射,枚举,绑定下拉框

 1:  public static class EnumManager<TEnum>

 2:      {

 3:          private static DataTable GetDataTable()

 4:          {

 5:              Type enumType = typeof(TEnum); // 获?取?类?型?对?象?

 6:  FieldInfo[] enumFields = enumType.GetFields();    //获?取?字?段?信?息?对?象?集?合?

 7:  

 8:  DataTable table = new DataTable();

 9:              table.Columns.Add("Name", Type.GetType("System.String"));

10:              table.Columns.Add("Value", Type.GetType("System.Int32"));

11:              //遍?历?集?合?

12:  foreach (FieldInfo field in enumFields)

13:              {

14:                  if (!field.IsSpecialName)

15:                  {

16:                      DataRow row = table.NewRow();

17:                      row[0] = field.Name;   // 获?取?字?段?文?本?值?

18:  row[1] = Convert.ToInt32(field.GetRawConstantValue());        // 获?取?int数?值?

19:                      //row[1] = (int)Enum.Parse(enumType, field.Name); 也?可?以?这?样?

20:  

21:  table.Rows.Add(row);

22:                  }

23:              }

24:              return table;

25:          }

26:   

27:          public static void SetListControl(ListControl list)

28:          {

29:              list.DataSource = GetDataTable();

30:              list.DataTextField = "Name";

31:              list.DataValueField = "Value";

32:              list.DataBind();

33:          }

34:      }

使用：

1:      public enum BookingStatus {

2:      未?提?交? = 1,

3:      已?提?交?,

4:      已?取?消?,

5:      已?完?成? = 6

6:      }

7:  EnumManager<BookingStauts>.SetListControl(ddlBookingStatus); 

8:  EnumManager<TicketStatus>.SetListControl(rblTicketStatus);