本期内容：
GridView无代码分页排序
GridView选中，编辑，取消，删除
GridView正反双向排序
GridView和下拉菜单DropDownList结合
1.GridView无代码分页排序：
效果图：
1.AllowSorting设为True，aspx代码中是AllowSorting="True"；
2.默认1页10条，如果要修改每页条数，修改PageSize即可，在aspx代码中是PageSize="12"。
3.默认的是单向排序的，右击GridView弹出“属性”，选择AllowSorting为True即可。
2.GridView选中，编辑，取消，删除：
效果图：
后台代码：
你可以使用sqlhelper,本文没用。代码如下：
1
using System;
2using System.Data;
3using System.Configuration;
4using System.Web;
5using System.Web.Security;
6using System.Web.UI;
7using System.Web.UI.WebControls;
8using System.Web.UI.WebControls.WebParts;
9using System.Web.UI.HtmlControls;
10using System.Data.SqlClient;
11
12public partial class _Default : System.Web.UI.Page
13
{
14
//清清月儿http://blog.csdn.net/21aspnet
15 SqlConnection sqlcon;
16 SqlCommand sqlcom;
17 string strCon = "Data Source=(local);Database=数据库名;Uid=帐号;Pwd=密码";
18 protected void Page_Load(object sender, EventArgs e)
19
{
20 if (!IsPostBack)
21 {
22 bind();
23
}
24 }
25 protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
26 {
27 GridView1.EditIndex = e.NewEditIndex;
28 bind();
29 }
30
31 //删除
32 protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
33 {
34 string sqlstr = "delete from 表 where id='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
35 sqlcon = new SqlConnection(strCon);
36 sqlcom = new SqlCommand(sqlstr,sqlcon);
37 sqlcon.Open();
38 sqlcom.ExecuteNonQuery();
39 sqlcon.Close();
40 bind();
41 }
42
43 //更新
44 protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
45 {
46 sqlcon = new SqlConnection(strCon);
47 string sqlstr = "update 表 set 字段1='"
48 + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',字段2='"
49 + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim() + "',字段3='"
50 + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where id='"
51 + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
52 sqlcom=new SqlCommand(sqlstr,sqlcon);
53 sqlcon.Open();
54 sqlcom.ExecuteNonQuery();
55 sqlcon.Close();
56 GridView1.EditIndex = -1;
57 bind();
58 }
59
60 //取消
61 protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
62 {
63 GridView1.EditIndex = -1;
64 bind();
65 }
66
67 //绑定
68 public void bind()
69 {
70 string sqlstr = "select * from 表";
71 sqlcon = new SqlConnection(strCon);
72 SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
73 DataSet myds = new DataSet();
74 sqlcon.Open();
75 myda.Fill(myds, "表");
76 GridView1.DataSource = myds;
77 GridView1.DataKeyNames = new string[] { "id" };//主键
78 GridView1.DataBind();
79 sqlcon.Close();
80 }
81
}
82
83
前台主要代码：
1<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"
2 ForeColor="#333333" GridLines="None" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
3 OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit">
4 <FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
5 <Columns>
6 <asp:BoundField DataField="身份证号码" HeaderText="用户ID" ReadOnly="True" />
7 <asp:BoundField DataField="姓名" HeaderText="用户姓名" />
8 <asp:BoundField DataField="员工性别" HeaderText="性别" />
9 <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
10 <asp:CommandField HeaderText="选择" ShowSelectButton="True" />
11 <asp:CommandField HeaderText="编辑" ShowEditButton="True" />
12 <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
13 </Columns>
14 <RowStyle ForeColor="#000066" />
15 <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
16 <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
17 <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
18</asp:GridView>
19