数据绑定后在GridView后怎么才能修改数据就是 user Search = new user();
SqlDataReader myreader = Search.Login(sql);
GridView1.DataSource = myreader;
GridView1.DataBind();
}
把数据直接绑定到GridView上，但是显示出来的数据不能编辑，高手赐教啊
SqlDataReader myreader = Search.Login(sql);
GridView1.DataSource = myreader;
GridView1.DataBind();
}
把数据直接绑定到GridView上，但是显示出来的数据不能编辑，高手赐教啊
用DataSet和DataTable存储数据并修改吧
想在列表里进行修改的话，如果DataGrid控件的话，可以在“属性生成器”-〉“列”里面添加列的时候加入一组“编辑、更新、取消”的按钮比较方便。
前台代码：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default5.aspx.cs" Inherits="Default5" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<div align="center">
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
CellPadding="4" ForeColor="#333333" GridLines="None" Height="285px"
onrowcancelingedit="GridView1_RowCancelingEdit"
onrowdeleting="GridView1_RowDeleting" onrowediting="GridView1_RowEditing"
onrowupdating="GridView1_RowUpdating" Width="771px">
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
<Columns>
<asp:BoundField DataField="id" HeaderText="学号" />
<asp:BoundField DataField="name" HeaderText="姓名" />
<asp:BoundField DataField="sex" HeaderText="性别" />
<asp:BoundField DataField="age" HeaderText="年龄" />
<asp:BoundField DataField="department" HeaderText="专业" />
<asp:BoundField DataField="grade" HeaderText="班级" />
<asp:CommandField HeaderText="编辑 " ShowEditButton="True" />
<asp:CommandField HeaderText="选择" ShowSelectButton="True" />
<asp:TemplateField HeaderText="删除 " ShowHeader="False">
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False"
CommandName="Delete" Text="删除" OnClientClick="return confirm('你确定要删除吗？')"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<EditRowStyle BackColor="#999999" />
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
</asp:GridView>
</div>
</form>
</body>
</html>后台代码：
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Data.SqlClient;public partial class Default5 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Bind();
}
} private void Bind()
{
SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["Personal"].ConnectionString);
SqlDataAdapter adq = new SqlDataAdapter("select * from information", conn);
DataSet dataset=new DataSet();
adq.Fill(dataset,"information");
GridView1.DataSource=dataset;
GridView1.DataKeyNames=new String[]{"id"};
GridView1.DataBind();
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
Bind();
}
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["Personal"].ConnectionString);
SqlCommand comm = new SqlCommand("delete from information where id='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'",conn);
conn.Open();
try
{
int i = Convert.ToInt32(comm.ExecuteNonQuery());
if (i > 0)
{
Response.Write("<script language=javascript>alert('删除成功！')</script>");
}
else
{
Response.Write("<script language=javascript>alert('删除失败！')</script>");
}
Bind();
}
catch (Exception erro)
{
Response.Write("错误信息:"+erro.Message);
}
finally
{
conn.Close();
}
}
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
string id = ((TextBox)GridView1.Rows[e.RowIndex].Cells[0].Controls[0]).Text.ToString().Trim();
string name = ((TextBox)GridView1.Rows[e.RowIndex].Cells[1].Controls[0]).Text.ToString().Trim();
string sex = ((TextBox)GridView1.Rows[e.RowIndex].Cells[2].Controls[0]).Text.ToString().Trim();
string age= ((TextBox)GridView1.Rows[e.RowIndex].Cells[3].Controls[0]).Text.ToString().Trim();
string department = ((TextBox)GridView1.Rows[e.RowIndex].Cells[4].Controls[0]).Text.ToString().Trim();
string grade = ((TextBox)GridView1.Rows[e.RowIndex].Cells[5].Controls[0]).Text.ToString().Trim();
SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["Personal"].ConnectionString);
SqlCommand comm = new SqlCommand("update information set id='"+id+"', name='"+name+"' , sex='"+sex+"' , age='"+age+"' , department='"+department+"' , grade='"+grade+"' where id='"+GridView1.DataKeys[e.RowIndex].Value.ToString()+"'", conn);
conn.Open();
try
{
int i = Convert.ToInt32(comm.ExecuteNonQuery());
if (i > 0)
{
Response.Write("<script language=javascript>alert('保存成功！')</script>");
}
else
{
Response.Write("<script language=javascript>alert('保存失败！')</script>");
}
GridView1.EditIndex = -1;
Bind();
}
catch (Exception erro)
{
Response.Write("错误信息:" + erro.Message);
}
finally
{
conn.Close();
}
}
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
Bind();
}
}