GridView用法详解

前台页面：

Default.aspx

 <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

 <!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>GridView用法</title>

 </head>

 <body>

     <form id="form1" runat="server">

     <div>

            <asp:GridView ID="gvUserInfo" runat="server"  AllowPaging="True" PageSize="" OnSorting="gvUserInfo_Sorting" AllowSorting="true" AutoGenerateEditButton="true" OnRowDataBound="gvUserInfo_RowDataBound" OnRowEditing="gvUserInfo_RowEditing"  OnRowUpdating="gvUserInfo_RowUpdating" OnRowCancelingEdit="gvUserInfo_RowCancelingEdit" OnPageIndexChanging="gvUserInfo_PageIndexChanging" OnRowDeleting="gvUserInfo_RowDeleting" EnableModelValidation="True" CellPadding="" ForeColor="#333333" GridLines="None" >

              <AlternatingRowStyle BackColor="White" ForeColor="#284775" />

             <Columns>

   <%--                    ！！！  DataNavigateUrlFields属性是获取或设置数据源中字段的名称，用于为其超链接构造URL，其字段名称应为GridView中的数据字段名

       --%>        

                 <asp:HyperLinkField  NavigateUrl="Info.aspx" DataNavigateUrlFields="用户编号" DataNavigateUrlFormatString="Info.aspx?userId={0}" Target="_blank" Text="详细信息"/>

                <asp:TemplateField>

                     <ItemTemplate>

                         <asp:Button ID="btnDelete" runat="server"  CommandName="Delete"  Text="删除" CausesValidation="false" OnClientClick="return confirm('确定删除？')"  >

                         </asp:Button>

                     </ItemTemplate>

                 </asp:TemplateField>

             </Columns>

             <EditRowStyle BackColor="#999999" />

             <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />

             <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />

             <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />

             <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />

             <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />

         </asp:GridView>

     </div>

     </form>

 </body>

 </html>

info.aspx

 <%@ Page Language="C#" AutoEventWireup="true" CodeFile="info.aspx.cs" Inherits="info" %>

 <!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>用户详细信息</title>

 </head>

 <body>

     <form id="form1" runat="server">

     <div>

     <asp:Table runat="server" Caption="用户信息" >

         <asp:TableRow>

             <asp:TableCell>用户编号：</asp:TableCell>

             <asp:TableCell>

                 <asp:Label ID="lblUserId" runat="server" Text=""></asp:Label></asp:TableCell>

         </asp:TableRow>

         <asp:TableRow>

             <asp:TableCell>性别：</asp:TableCell>

             <asp:TableCell><asp:Label ID="lblSex" runat="server" Text=""></asp:Label></asp:TableCell>

         </asp:TableRow>

         <asp:TableRow>

             <asp:TableCell>邮箱：</asp:TableCell>

             <asp:TableCell><asp:Label ID="lblMail" runat="server" Text=""></asp:Label></asp:TableCell>

         </asp:TableRow>

     </asp:Table>

         <asp:Button ID="btnExit" runat="server" Text="关闭窗口"  OnClientClick="javascript:window.opener=null;window.close();"/>

     </div>

     </form>

 </body>

 </html>

后台页面：

Default.aspx.cs

 using System;

 using System.Collections.Generic;

 using System.Web;

 using System.Web.UI;

 using System.Web.UI.WebControls;

 using System.Data;

 using System.Data.SqlClient;

 public partial class _Default : System.Web.UI.Page

 {

     protected void Page_Load(object sender, EventArgs e)

     {

         if (!IsPostBack)

         {

             ViewState["SortOrder"] = "用户编号";

             ViewState["OrderDir"] = "DESC";

             dataBind();

         }

     }

     /// <summary>

     ///   绑定数据库中的数据到GridView控件中

     /// </summary>

     protected void dataBind()

     {

         string conStr = System.Configuration.ConfigurationManager.ConnectionStrings["ConStr"].ToString();

         SqlConnection conn = new SqlConnection(conStr);

         if (conn.State == ConnectionState.Closed)

         {

             conn.Open();

         }

        // string strSql = "select userId,userName  from tabUserInfo";

         string strSql = "select userId as 用户编号,userName as 用户名  from tabUserInfo";

         SqlDataAdapter da = new SqlDataAdapter(strSql, conn);

         DataSet ds = new DataSet();

         da.Fill(ds, "tabUserInfo");

         string sort = (string)ViewState["SortOrder"] + " " + (string)ViewState["OrderDir"];

         DataView view = ds.Tables["tabUserInfo"].DefaultView;

         view.Sort = sort;

         gvUserInfo.DataSource = view;

         gvUserInfo.DataKeyNames = new string[]{"用户编号"};

         gvUserInfo.DataBind();

         //对特定数据用特定的显示方式

         for (int i = ; i < gvUserInfo.Rows.Count; i++)

         {

             DataRowView myDrv = ds.Tables["tabUserInfo"].DefaultView[i];

             string id = myDrv["用户编号"].ToString();

             if (Convert.ToInt32(id) < )

             {

                 gvUserInfo.Rows[i].Cells[].BackColor = System.Drawing.Color.Red;

             }

         }

         if (conn.State == ConnectionState.Open)

         {

             conn.Close();

         }

     }

     /// <summary>

     /// 实现分页功能

     /// </summary>

     /// <param name="sender"></param>

     /// <param name="e"></param>

     protected void gvUserInfo_PageIndexChanging(object sender, GridViewPageEventArgs e)

     {

         gvUserInfo.PageIndex = e.NewPageIndex;

         dataBind();

     }

     /// <summary>

     /// 删除GridView中数据

     /// </summary>

     /// <param name="sender"></param>

     /// <param name="e"></param>

     protected void gvUserInfo_RowDeleting(object sender, GridViewDeleteEventArgs e)

     {

         SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["ConStr"].ToString());

         string strSql = "delete from tabUserInfo where userId=" +gvUserInfo.DataKeys[e.RowIndex].Value.ToString()+ "";

         conn.Open();

         SqlCommand cmd = new SqlCommand(strSql, conn);

         if (cmd.ExecuteNonQuery() > )

             Response.Write("<script>alert('删除成功!')</script>");

         else

             Response.Write("<script>alert('删除失败!')</script>");

         conn.Close();

         dataBind();

     }

     /// <summary>

     /// 编辑GridView中的数据

     /// </summary>

     /// <param name="sender"></param>

     /// <param name="e"></param>

     protected void gvUserInfo_RowEditing(object sender, GridViewEditEventArgs e)

     {

         gvUserInfo.EditIndex = e.NewEditIndex;

         dataBind();

     }

     /// <summary>

     ///更改数据并提交到数据库

     /// </summary>

     /// <param name="sender"></param>

     /// <param name="e"></param>

     protected void gvUserInfo_RowUpdating(object sender, GridViewUpdateEventArgs e)

     {

         string conStr = System.Configuration.ConfigurationManager.ConnectionStrings["ConStr"].ToString();

         SqlConnection conn = new SqlConnection(conStr);

         string strSql = "update tabUserInfo set userName='" + ((TextBox)(gvUserInfo.Rows[e.RowIndex].Cells[].Controls[])).Text.ToString().Trim() + "' where userId=" + gvUserInfo.DataKeys[e.RowIndex].Value.ToString() + "";

         //

         conn.Open();

         SqlCommand cmd = new SqlCommand(strSql, conn);

         cmd.ExecuteNonQuery();

         Response.Write("<script>alert('更改成功！')</script>");

         conn.Close();

         gvUserInfo.EditIndex = -;

         dataBind();

     }

     /// <summary>

     /// 取消对GridView中数据的编辑

     /// </summary>

     /// <param name="sender"></param>

     /// <param name="e"></param>

     protected void gvUserInfo_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

     {

         gvUserInfo.EditIndex = -;

         dataBind();

     }

     /// <summary>

     /// RowDataBound事件

     /// </summary>

     /// <param name="sender"></param>

     /// <param name="e"></param>

     protected void gvUserInfo_RowDataBound(object sender, GridViewRowEventArgs e)

     {

         //高亮显示鼠标指定行数据

         if (e.Row.RowType == DataControlRowType.DataRow)

         {

             e.Row.Attributes.Add("onMouseOver", "Color=this.style.backgroundColor;this.style.backgroundColor='lightblue'");

             e.Row.Attributes.Add("onMouseOut", "this.style.backgroundColor=Color;");

         }

     }

     /// <summary>

     /// 排序代码

     /// </summary>

     /// <param name="sender"></param>

     /// <param name="e"></param>

     protected void gvUserInfo_Sorting(object sender, GridViewSortEventArgs e)

     {

         string strPage = e.SortExpression;

         if (ViewState["SortOrder"].ToString() == strPage)

         {

             if (ViewState["OrderDir"].ToString() == "DESC")

             {

                 ViewState["OrderDir"] = "ASC";

             }

             else

             {

                 ViewState["OrderDir"] = "DESC";

             }

         }

         else

         {

             ViewState["SortOrder"] = e.SortExpression;

         }

         dataBind();

     }

 }

info.aspx.cs

 using System;

 using System.Collections.Generic;

 using System.Web;

 using System.Web.UI;

 using System.Web.UI.WebControls;

 using System.Data;

 using System.Data.SqlClient;

 public partial class info : System.Web.UI.Page

 {

     protected void Page_Load(object sender, EventArgs e)

     {

         if (!IsPostBack)

         {

             dataBind();

         }

     }

     protected void dataBind()

     {

         string conStr=System.Configuration.ConfigurationManager.ConnectionStrings["ConStr"].ToString();

         SqlConnection conn = new SqlConnection(conStr);

         if (conn.State == ConnectionState.Closed)

         {

             conn.Open();

         }

         string strSql = "select * from tabUserInfo where userId="+Request["userId"].ToString()+";";

         SqlDataAdapter da = new SqlDataAdapter(strSql, conn);

         DataSet ds = new DataSet();

         da.Fill(ds, "tabInfo");

         DataRowView rowView = ds.Tables["tabInfo"].DefaultView[];

         lblUserId.Text = Convert.ToString(rowView["userId"]);

         lblSex.Text = Convert.ToString(rowView["userSex"]);

         lblMail.Text = Convert.ToString(rowView["userMail"]);

         if (conn.State == ConnectionState.Open)

         {

             conn.Close();

         }

     }

 }

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