在GridView中实现全选反选的例子
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="GridView控件.aspx.cs" Inherits="WebApplication1.GridView控件" %> <!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></title> <script language="javascript" type="text/javascript" > //反选 function ReverseSelect() { var checkbox = document.all.CheckboxGroup; if (checkbox == null) { return false; } if (checkbox.length + "" != "undefined") { for (var i = 0; i < checkbox.length; i++) { checkbox[i].checked = !checkbox[i].checked; } } else { //修正当列表长度为1，不能反选 checkbox.checked = !checkbox[i].checked; } return false; } //全选 function SelectAll() { var checkbox = document.all.CheckboxGroup; if (checkbox == null) { return false; } if (checkbox.length + "" != "undefined") { for (var i = 0; i < checkbox.length; i++) { checkbox[i].checked = !checkbox[i].checked; } } else { checkbox.checked = true; } return false; } //检查至少选一项 function CheckHasSelectedItem() { var checkbox = document.all.CheckboxGroup; if (checkbox == null) { return false; } if (checkbox.length + "" != "undefined") { for (var i = 0; i < checkbox.length; i++) { if(checkbox[i].checked) { return true; } } } else { return false; } } //删除用户前的确认 function ConfirmDelete() { if (CheckHasSelectedItem())//如果少选择一项 { return confirm("确定删除该用户？"); } else { alter("至少选择一项"); return false; } } </script> </head> <body> <form id="form1" runat="server"> <div> <asp:GridView ID="gvUserList" runat="server" AutoGenerateColumns="false" Width="800px" AllowPaging="True" onpageindexchanging="gvUserList_PageIndexChanging" PageSize="5"> <Columns> <asp:TemplateField> <ItemTemplate> <input name ='CheckboxGroup' type='checkbox' value='<%#Eval("ID")%>'/> </ItemTemplate> </asp:TemplateField> <asp:BoundField DataField="ID" HeaderText="编码" /> <asp:HyperLinkField DataNavigateUrlFields="ID" DataNavigateUrlFormatString=" GridView控件.aspx?ID={0}" DataTextField="RealName" HeaderText="查看" /> <asp:BoundField DataField="UserName" HeaderText="用户姓名" /> <asp:BoundField DataField="RealName" HeaderText="真实姓名" /> <asp:BoundField DataField="Age" HeaderText="年龄" /> <asp:CheckBoxField DataField="Sex" HeaderText="男" /> <asp:BoundField DataField="Mobile" HeaderText="手机" /> <asp:TemplateField HeaderText="电子邮件"> <AlternatingItemTemplate> <a href='emailto:<%#Eval("Email")%>'>发邮件给<%#Eval("RealName")%></a> </AlternatingItemTemplate> <ItemTemplate> <%#Eval("Email")%> </ItemTemplate> </asp:TemplateField> </Columns> </asp:GridView> <table border="0" width="800" cellpadding="0" cellspacing="0"> <tr><td><a style="text-decoration:underline" href="#" onclick="SelectAll();">全选</a></td> <td><a style="text-decoration:underline" href="#" onclick="ReverseSelect();">反选</a></td> <td> <asp:Button ID="btnDelete" runat="server" OnClientClick="javascript:return ConfirmDelete();" OnClick="btnDelete_Click" Text="删除" /> </td> </tr> </table> </div> </form> </body> </html>
CS代码：
sing System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Data.SqlClient; using System.Data; namespace WebApplication1 { public partial class GridView控件 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { //默认显示第一页 但索引为0 BindGridView(0); } } //指定绑定页面的数据 private void BindGridView(int pageIndex) { SqlConnection conn = new SqlConnection(@"server=Rose-PC\SQLEXPRESS;Database=User;User Id=sa;password="); SqlCommand command = new SqlCommand("Select * from UserInfo", conn); SqlDataAdapter adapter = new SqlDataAdapter(command); DataTable data = new DataTable(); adapter.Fill(data); #region 注意这部分代码可以在设计视图中设置，不必卸载代码里 gvUserList.AllowPaging = true;//设置允许自动分页 //gvUserList.AutoGenerateColumns=false;//设置不允许自动绑定 gvUserList.PageSize = 5; #endregion gvUserList.DataSource = data; gvUserList.PageIndex = pageIndex;//设置显示第几页 gvUserList.DataBind(); } //翻页事件 protected void gvUserList_PageIndexChanging(object sender, GridViewPageEventArgs e) { //指定新页面，重新绑定数据 BindGridView(e.NewPageIndex); } //删除选中用户 protected void btnDelete_Click(object sender, EventArgs e) { string Sql = "delete from UserInfo where ID in (" +Request["CheckboxGroup"] + ")"; SqlConnection conn = new SqlConnection(@"server=Rose-PC\SQLEXPRESS;Database=User;User Id=sa;password="); SqlCommand command = new SqlCommand(Sql, conn); conn.Open(); int count = command.ExecuteNonQuery(); conn.Close(); //删除成功后给出提示 if (count >0) { Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "success", "<script language='javascript'>alert('删除成功！');" + "window.location='MultiSelectGridView.aspx';</script>"); } else { Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "fail", "<script language='javascript'>alert('删除成功！');</script>"); } } } }
