【总结】——Repeater控件详细应用

Repeater控件应用详解

1 在App_Data文件夹下建立一个数据库文件.mdf,创建一张新表，往里面灌一些数据；

2 新建一个DAL文件夹，添加数据集文件DataSet，利用强类型Dataset实现数据与页面的分离；

3 拖一个ObjectDataSource控件，选择数据源；

4 拽一个Repeater控件，选择数据源，排班；

切换到后台.aspx代码

 1 <asp:Repeater ID="Repeater1" runat="server" DataSourceID="ObjectDataSource1" 
 2             onitemdatabound="Repeater1_ItemDataBound" 
 3             onitemcommand="Repeater1_ItemCommand">
 4         <HeaderTemplate><table><tr><td>用户名</td><td>状态</td><td>操作</td></tr></HeaderTemplate>
 5         <ItemTemplate>
 6             <tr runat="server" id="trRow">
 7                 <td><%#Eval("UserName") %></td>
 8                 <td><%#Eval("Status") %></td>
 9                 <td>
10                     <asp:Button runat="server" ID="btnEnabled" CommandName="Enabled" CommandArgument='<%#Eval("Id") %>' Text="启用" />
11                     <asp:Button runat="server" ID="btnDisabled" CommandName="Disabled" CommandArgument='<%#Eval("Id") %>' Text="禁用" OnClientClick="return confirm('真的要禁用吗？')" />
12                 </td>
13             </tr>
14         </ItemTemplate>
15         <FooterTemplate></table></FooterTemplate>
16         </asp:Repeater>

5 Repeater有ItemDataBound和ItemCommand事件；

 1 protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
 2         {
 3             //只处理Item类型，对于Header等类型则不处理
 4              if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType==ListItemType.AlternatingItem)
 5             {//没有给AlternatingItem，但是偶数行也是e.Item.ItemType=AlternatingItem
 6                  DataRowView rowView = (DataRowView)e.Item.DataItem;
 7                 var userRow = (ASP.NET高级.DAL.DataSetUsers.T_UsersRow)rowView.Row;
 8                 if (userRow.Status == "禁用")
 9                 {
10                     //1 把这行高亮显示
11                      HtmlTableRow trRow = (HtmlTableRow)e.Item.FindControl("trRow");
12                     trRow.Attributes["class"] = "disabledRow";
13 
14                     Button btnEnabled = (Button)e.Item.FindControl("btnEnabled");
15                     Button btnDisabled = (Button)e.Item.FindControl("btnDisabled");
16 
17                     //2 显示启用按钮
18                      btnEnabled.Visible = true;
19                     //3 不显示禁用按钮
20                     btnDisabled.Visible = false;
21                 }
22                 else if (userRow.Status == "启用")
23                 {
24                     //1 把这行普通显示
25                     HtmlTableRow trRow = (HtmlTableRow)e.Item.FindControl("trRow");
26                     trRow.Attributes["class"] = "";//空的
27 
28                     Button btnEnabled = (Button)e.Item.FindControl("btnEnabled");
29                     Button btnDisabled = (Button)e.Item.FindControl("btnDisabled");
30 
31                     //2 不显示启用按钮
32                     btnEnabled.Visible = false;
33                     //3 显示禁用按钮
34                     btnDisabled.Visible = true;
35 
36                 }
37                 else//写严谨的程序，可以尽早的发现问题
38                 {
39                     throw new Exception("非法的status状态");
40                 }
41             }
42             
43         }
44 
45         protected void Repeater1_ItemCommand(object source, RepeaterCommandEventArgs e)
46         {
47             if (e.CommandName=="Enabled")//启用
48             {
49                 long id = Convert.ToInt64(e.CommandArgument);
50                 T_UsersTableAdapter adapter = new T_UsersTableAdapter();
51                 adapter.EnableUserById(id);
52                 Repeater1.DataBind();//Don't forget!!!
53             }
54             else if (e.CommandName=="Disabled")//禁用
55             {
56                 long id = Convert.ToInt64(e.CommandArgument);
57                 T_UsersTableAdapter adapter = new T_UsersTableAdapter();
58                 adapter.DisableUserById(id);
59                 Repeater1.DataBind();//Don't forget!!!
60             }
61         }

Over. . .

posted on 2011-03-19 12:03 Frank.Fan 阅读(2620) 评论(1) 编辑收藏举报