GridView数据绑定
- <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Index.aspx.cs" Inherits="WebApplication1.Index"%>
- <!DOCTYPE html>
- <html xmlns="http://www.w3.org/1999/xhtml">
- <head runat="server">
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
- <title></title>
- </head>
- <body>
- <form id="form1" runat="server">
- <div>
- <asp:GridView ID=">
- <Columns>
- <asp:TemplateField HeaderText="全选" >
- <HeaderTemplate>
- <asp:CheckBox ID="CheckBox1" runat="server" Text="全选" onclick="checkAll(this)" />
- </HeaderTemplate>
- <ItemTemplate>
- <asp:CheckBox ID="CheckBox2" runat="server" />
- <asp:HiddenField ID="HiddenField1" runat="server" Value='<%# Eval("stuID") %>' />
- </ItemTemplate>
- </asp:TemplateField>
- <asp:BoundField DataField="stuName" HeaderText="姓名" />
- <asp:BoundField DataField="stuNo" HeaderText="学号" />
- <asp:BoundField DataField="sex" HeaderText="性别" />
- <asp:TemplateField HeaderText="操作">
- <ItemTemplate>
- <asp:Button ID="Button2" runat="server" Text="编辑" CommandArgument='<%# Eval("stuID") %>' OnClick="Button2_Click" />
- <asp:Button ID="Button3" runat="server" Text="删除" CommandArgument='<%# Eval("stuID") %>' OnClick="Button3_Click" />
- </ItemTemplate>
- </asp:TemplateField>
- </Columns>
- <FooterStyle BackColor="White" ForeColor="#000066" />
- <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
- <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
- <PagerTemplate>
- <asp:Button ID="Button1" runat="server" Text="Button" />
- </PagerTemplate>
- <RowStyle ForeColor="#000066" />
- <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
- <SortedAscendingCellStyle BackColor="#F1F1F1" />
- <SortedAscendingHeaderStyle BackColor="#007DBB" />
- <SortedDescendingCellStyle BackColor="#CAC9C9" />
- <SortedDescendingHeaderStyle BackColor="#00547E" />
- </asp:GridView>
- <asp:Button ID="Button4" runat="server" Text="新增" OnClick="Button4_Click" />
- </div>
- </form>
- </body>
- </html>
- <script type="text/javascript">
- function checkAll(v){
- var arr = document.getElementById("GridView1").getElementsByTagName("input");
- ; i < arr.length; i++) {
- if (arr[i].type == "checkbox")
- {
- arr[i].checked = v.checked;
- }
- }
- }
- </script>
Index页面
- using System;
- using System.Collections.Generic;
- using System.Data;
- using System.Data.SqlClient;
- using System.Linq;
- using System.Text;
- using System.Web;
- using System.Web.UI;
- using System.Web.UI.WebControls;
- namespace WebApplication1
- {
- public partial class Index : System.Web.UI.Page
- {
- protected void Page_Load(object sender, EventArgs e)
- {
- BindeList();
- }
- private void BindeList()//第一次加载
- {
- if (!Page.IsPostBack)
- {
- Bindlist2();
- }
- }
- private void Bindlist2()
- {
- string sql = "select * from student";
- string strcon = "server=DESKTOP-QQGOIKH;database=stuDB;uid=sa;pwd=123";
- SqlConnection sqlcon = new SqlConnection(strcon);
- //创建适配器实例,在dataset与数据之间架起桥梁作用
- SqlDataAdapter myda = new SqlDataAdapter(sql, sqlcon);
- //创建dataset实例数据集
- DataSet myds = new DataSet();
- //打开数据库
- sqlcon.Open();
- //将表填充到数据集
- myda.Fill(myds, "staff");
- GridView1.DataSource = myds;
- GridView1.DataKeyNames = new string[] { "stuID" };
- GridView1.DataBind();
- }
- //编辑
- protected void Button2_Click(object sender, EventArgs e)
- {
- //sender代表button内容
- Button bt = sender as Button;//尝试sender转换为button类型,如果无法转换,将返回一个空值
- string id = bt.CommandArgument;
- Response.Redirect("updateLinst.aspx?id=" + id);
- }
- //删除
- protected void Button3_Click(object sender, EventArgs e)
- {
- //多项删除
- ;//计数器
- //遍历griview
- foreach (GridViewRow item in GridView1.Rows)//foreach不能直接遍历gridview,只能遍历行的集合
- {
- CheckBox cb = item.Cells[].FindControl("CheckBox2") as CheckBox;//sender as CheckBox错误
- //获取每一行第一列的服务器控件为checkBo2的内容
- if (cb.Checked)
- {
- HiddenField hf = item.Cells[].FindControl("HiddenField1") as HiddenField;
- string id = hf.Value;
- string sql = "delete from student where stuID=@a";
- SqlParameter pms = new SqlParameter("@a", id);
- SqlConnection conn = new SqlConnection("server=DESKTOP-QQGOIKH;database=stuDB;uid=sa;pwd=123");
- conn.Open();
- SqlCommand cmd = new SqlCommand(sql, conn);
- cmd.Parameters.Add(pms);
- int i = cmd.ExecuteNonQuery();
- count += i;
- conn.Close();
- }
- }
- )
- {
- Response.Write("一共删除了"+count+"条数据");
- Bindlist2();
- }
- else
- {
- Response.Write("删除失败");
- }
- }
- protected void Button4_Click(object sender, EventArgs e)
- {
- Response.Redirect("insertList.aspx");
- }
- }
- }
Index后台
- <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="updateLinst.aspx.cs" Inherits="WebApplication1.updateLinst" %>
- <!DOCTYPE html>
- <html xmlns="http://www.w3.org/1999/xhtml">
- <head runat="server">
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
- <title></title>
- </head>
- <body>
- <form id="form1" runat="server">
- <div>
- <asp:Label ID="Label1" runat="server" Text="姓名"></asp:Label>
- <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
- <br />
- <asp:Label ID="Label2" runat="server" Text="编号"></asp:Label>
- <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
- <br />
- <asp:Label ID="Label3" runat="server" Text="学号"></asp:Label>
- <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
- <br />
- <asp:Button ID="Button1" runat="server" Text="提交" OnClick="Button1_Click" />
- <asp:Button ID="Button2" runat="server" Text="返回" OnClick="Button2_Click" />
- </div>
- </form>
- </body>
- </html>
修改页面
- using System;
- using System.Collections.Generic;
- using System.Data;
- using System.Data.SqlClient;
- using System.Linq;
- using System.Web;
- using System.Web.UI;
- using System.Web.UI.WebControls;
- namespace WebApplication1
- {
- public partial class updateLinst : System.Web.UI.Page
- {
- string strcon = "server=DESKTOP-QQGOIKH;database=stuDB;uid=sa;pwd=123";
- protected void Page_Load(object sender, EventArgs e)
- {
- if (!Page.IsPostBack)
- {
- string id = Request["id"].ToString();
- //取stuID对应的数据
- string sql = "select * from student where stuID=@a";
- SqlParameter pms = new SqlParameter("@a", id);
- //ADO.NET操作
- SqlConnection conn = new SqlConnection(strcon);
- conn.Open();
- SqlCommand cmd = new SqlCommand(sql, conn);
- //传入参数
- cmd.Parameters.Add(pms);
- //执行
- SqlDataReader sdr = cmd.ExecuteReader();
- //读取
- bool b = sdr.Read();//b代表是否读取到数据
- if (b==true)
- {
- TextBox1.Text = sdr["stuName"].ToString();
- TextBox2.Text = sdr["stuNo"].ToString();
- TextBox3.Text = sdr["sex"].ToString();
- }
- conn.Close();
- }
- }
- //提交
- protected void Button1_Click(object sender, EventArgs e)
- {
- //取到id
- string id = Request["id"];
- string sql = "update student set stuName=@b,stuNo=@c,sex=@d where stuID=@a";
- SqlParameter[] pms = ];
- pms[] = new SqlParameter("@a", id);
- pms[] = new SqlParameter("@b", TextBox1.Text);
- pms[] = new SqlParameter("@c", TextBox2.Text);
- pms[] = new SqlParameter("@d", TextBox3.Text);
- //ADO.NET操作
- SqlConnection conn = new SqlConnection(strcon);
- conn.Open();
- SqlCommand cmd = new SqlCommand(sql, conn);
- cmd.Parameters.Add(pms[]);
- cmd.Parameters.Add(pms[]);
- cmd.Parameters.Add(pms[]);
- cmd.Parameters.Add(pms[]);
- int i = cmd.ExecuteNonQuery();
- conn.Close();
- )
- {
- Response.Write("修改成功");
- }
- else
- {
- Response.Write("修改失败");
- }
- }
- //返回
- protected void Button2_Click(object sender, EventArgs e)
- {
- Response.Redirect("Index.aspx");
- }
- }
- }
修改后台
- <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="insertList.aspx.cs" Inherits="WebApplication1.insertList" %>
- <!DOCTYPE html>
- <html xmlns="http://www.w3.org/1999/xhtml">
- <head runat="server">
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
- <title></title>
- </head>
- <body>
- <form id="form1" runat="server">
- <div>
- <asp:Label ID="Label1" runat="server" Text="姓名"></asp:Label>
- <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
- <br />
- <asp:Label ID="Label2" runat="server" Text="学号"></asp:Label>
- <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
- <br />
- <asp:Label ID="Label3" runat="server" Text="性别"></asp:Label>
- <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
- <br />
- <asp:Button ID="Button1" runat="server" Text="提交" OnClick="Button1_Click" />
- </div>
- </form>
- </body>
- </html>
新增页面
- using System;
- using System.Collections.Generic;
- using System.Data.SqlClient;
- using System.Linq;
- using System.Web;
- using System.Web.UI;
- using System.Web.UI.WebControls;
- namespace WebApplication1
- {
- public partial class insertList : System.Web.UI.Page
- {
- protected void Page_Load(object sender, EventArgs e)
- {
- }
- //新增提交
- protected void Button1_Click(object sender, EventArgs e)
- {
- string sql = "insert into student (stuName, stuNo,sex) values (@a, @b,@c)";
- string strcon = "server=DESKTOP-QQGOIKH;database=stuDB;uid=sa;pwd=123";
- SqlParameter[] pms = ];
- pms[] = new SqlParameter("@a", TextBox1.Text);
- pms[] = new SqlParameter("@b", TextBox2.Text);
- pms[] = new SqlParameter("@c", TextBox3.Text);
- //ADO.NET操作
- SqlConnection conn = new SqlConnection(strcon);
- conn.Open();
- SqlCommand cmd = new SqlCommand(sql, conn);
- cmd.Parameters.Add(pms[]);
- cmd.Parameters.Add(pms[]);
- cmd.Parameters.Add(pms[]);
- int i = cmd.ExecuteNonQuery();
- conn.Close();
- )
- {
- Response.Write("添加成功");
- Response.Redirect("index.aspx");
- }
- else
- {
- Response.Write("添加失败");
- }
- }
- }
- }
新增后台
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