两种添加数据到DropDownList控件的方法

王朝other·作者佚名  2008-05-30
窄屏简体版  字體: |||超大  

方法一:

1 string sql="SELECT * FROM NewsClass ORDER BY ORDERID DESC";

2

3 OleDbConnection conn=new OleDbConnection();

4

5 conn.ConnectionString=ConnectionString;

6 conn.Open();

7

8 OleDbCommand cmd = new OleDbCommand(Sql,Conn);

9 OleDbDataReader dr= cmd.ExecuteReader();

10

11 //将数据添加到 DropDownList

12 while(dr.Read())

13 {

14 ddl.Items.Add(new ListItem(dr["ClassName"].ToString(),dr["ClassId"].ToString()));

15 }

16 dr.Close();

17

18 cmd.Dispose();

19 conn.Close;

20 conn.Dispose();

21

方法二:

1 string sql="SELECT * FROM NewsClass ORDER BY ORDERID DESC";

2

3 OleDbConnection conn=new OleDbConnection();

4 conn.ConnectionString=ConnectionString;

5 conn.Open();

6

7 DataSet ds=new DataSet();

8 OleDbDataAdapter da=new OleDbDataAdapter(sql,conn);

9 da.Fill(ds,"ClassTable");

10

11 //将数据添加到 DropDownList

12 ddl.DataSource=ds;

13 ddl.DataTextField = "ClassName";

14 ddl.DataValueField = "ClassID";

15 ddl.DataBind();

16

17 ds.Dispose();

18 conn.Close;

19 conn.Dispose();

20

21

http://www.cnblogs.com/meil/archive/2006/10/19/533812.html

 
 
 
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