datalist绑定数据，实现增删改查

    <asp:DataList ID="DataList1" runat="server" CellPadding="4" 
            DataSourceID="ObjectDataSource1" ForeColor="#333333" Width="243px" 
            oncancelcommand="DataList1_CancelCommand" 
            ondeletecommand="DataList1_DeleteCommand" oneditcommand="DataList1_EditCommand" 
            onitemcommand="DataList1_ItemCommand" onupdatecommand="DataList1_UpdateCommand">
            <FooterStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
            <AlternatingItemStyle BackColor="White" />
            <ItemStyle BackColor="#E3EAEB" />
            <SelectedItemStyle BackColor="#C5BBAF" ForeColor="#333333" Font-Bold="True" />
            <HeaderStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
            <ItemTemplate>
                 序号
                <asp:Label ID="Label1" runat="server" Text='<%# Container.ItemIndex+1 %>'></asp:Label>
                <br />
                姓名
                <asp:Label ID="Label2" runat="server" Text='<%#Eval("UName") %>' ></asp:Label>
                <br />
                密码
                <asp:Label ID="Label3" runat="server" Text='<%#Eval("UPwd") %>'></asp:Label>
                <br />
               <%-- commamdName 必须是正确的delete edit update cancel--%>
                <asp:LinkButton ID="lnkEdit" runat="server" CommandArgument='<%#Eval("UId") %>' CommandName="edit">编辑</asp:LinkButton>
                 <asp:LinkButton ID="lnkDel" runat="server" CommandArgument='<%#Eval("UId") %>' CommandName="delete">删除</asp:LinkButton>
            </ItemTemplate>
            <EditItemTemplate>
                  序号
                <asp:Label ID="Label1" runat="server" Text='<%# Container.ItemIndex+1 %>'></asp:Label>
                <br />
                姓名
                <asp:textBox ID="txtname" runat="server" Text='<%#Eval("UName") %>' ></asp:textBox>
                <br />
                密码
                <asp:textBox ID="txtpwd" runat="server" Text='<%#Eval("UPwd") %>'></asp:textBox>
                <br />
                <asp:LinkButton ID="lnkUpdate" runat="server" CommandArgument='<%#Eval("UId") %>' CommandName="Update">更新</asp:LinkButton>
                 <asp:LinkButton ID="lnkCancle" runat="server" CommandArgument='<%#Eval("UId") %>' CommandName="cancel">取消</asp:LinkButton>
            </EditItemTemplate>
        </asp:DataList>
        <asp:ObjectDataSource ID="ObjectDataSource1" runat="server" 
            DataObjectTypeName="MyPhotoList.Model.User" DeleteMethod="Delete" 
            InsertMethod="Add" SelectMethod="GetAllList" TypeName="MyPhotoList.BLL.User" 
            UpdateMethod="Update">
            <DeleteParameters>
                <asp:Parameter Name="UId" Type="Int32" />
            </DeleteParameters>
        </asp:ObjectDataSource>

cs:

    //点击编辑 显示编辑项模版
    protected void DataList1_EditCommand(object source, DataListCommandEventArgs e)
    {
        DataList1.EditItemIndex = e.Item.ItemIndex;
        DataList1.DataBind();
    }
    //取消
    protected void DataList1_CancelCommand(object source, DataListCommandEventArgs e)
    {
        DataList1.EditItemIndex = -1;
        DataList1.DataBind();

    }
   //更新
    protected void DataList1_UpdateCommand(object source, DataListCommandEventArgs e)
    {
        MyPhotoList.BLL.User bll = new MyPhotoList.BLL.User();
        MyPhotoList.Model.User model = new MyPhotoList.Model.User();
        model.UId = Convert.ToInt32(e.CommandArgument);
        TextBox txt1 = e.Item.FindControl("txtname") as TextBox;
        TextBox txt2 = e.Item.FindControl("txtpwd") as TextBox;
        if (txt1!=null )
        {
            model.UName = txt1.Text;
        }
        if (txt2!=null )
        {
            model.UPwd = txt2.Text;
        }
        if (bll.Update(model))
        {
            DataList1.EditItemIndex = -1;
            DataList1.DataBind();
        }
        else
        {
            Response.Write("更新失败");
        }
    }
    //删除
    protected void DataList1_DeleteCommand(object source, DataListCommandEventArgs e)
    {
        int id = Convert.ToInt32(e.CommandArgument);

        MyPhotoList.BLL.User bll = new MyPhotoList.BLL.User();
        if (bll.Delete(id))
        {
            //删除成功重新绑定
            DataList1.DataBind();
        }
        else
        {
            Response.Write("删除失败");
        }
    }