c#,asp.net遍历DataTable的方式

1. DataTable dt = dataSet.Tables[0];     
2. for(int i = 0 ; i < dt.Rows.Count ; i++)     
3. {     
4.    string strName = dt.Rows[i]["字段名"].ToString();     
5. }     
6.       
7. 方法二：     
8. foreach(DataRow myRow in myDataSet.Tables["temp"].Rows)     
9. {     
10.       var str = myRow[0].ToString();     
11. }     
12.       
13. 方法三：     
14. foeach(DataRow dr in dt.Rows)        
15. {        
16.      object value = dr["ColumnsName"];        
17. }     
18.       
19. 方法四：     
20. DataTable dt=new DataTable();        
21. foreach(DataRow dr in dt.Rows)        
22. {      
23.    for(int i=0;i<dt.Columns.Count;i++)      
24.    {      
25. dr[i];      
26.    }        
27. }     
28.       
29. 绑定DataTable到Reapter。     
30. if (dtb_xx.Rows.Count > 0)     
31.         {     
32.             rp_xx.DataSource = dtb_xx;     
33.             rp_xx.DataBind();     
34.         }      
35. <asp:Repeater ID="rp_xx" runat="server">     
36.        <ItemTemplate>     
37.             <tr>     
38.                   <td>     
39.                       <div>     
40.                             <ul class="ListHorizontally">     
41.                                  <li>     
42.                                       <div class="TCell1">     
43.                                             <%#Eval("ID")%>     
44.                                        </div>     
45.                                   </li>     
46.                                   <li>     
47.                                        <div class="TCell2">     
48.                                              <%#Eval("Name")%>     
49.                                         </div>     
50.                                   </li>     
51.                             </ul>     
52.                        </div>     
53.                     </td>     
54.                 </tr>     
55.             </ItemTemplate>     
56.          </asp:Repeater>     
57. 方法五  
58. DataRow[] dataRows = null;  
59. dataRows = dataTable.Select(fieldParentID + "='" + treeNode.Tag.ToString() + "'", dataTable.DefaultView.Sort);  
60. foreach (DataRow dataRow in dataRows)  
61. {   
62.     
63.      DataRow dataRow = dataTable.Rows[i];   
64.     
65.      ?? = dataRow[fieldParentID].ToString();  
66. }