WebForm GridView分页

/前台代码


<asp:GridView ID="gridviewId" Width="60%" runat="server" AutoGenerateColumns="false" AllowPaging="True" AllowSorting="True" CellPadding="4" ForeColor="#333333" GridLines="None" OnRowDataBound="GridView1_RowDataBound" PageSize="5" OnPageIndexChanging="GridView1_PageIndexChanging"><AlternatingRowStyle BackColor="White" /><Columns><asp:BoundField DataField="Id" HeaderText="编号" Visible="False"><ItemStyle HorizontalAlign="Center" /></asp:BoundField><asp:BoundField DataField="Name" HeaderText="姓名"><ItemStyle HorizontalAlign="Center" /></asp:BoundField><asp:BoundField DataField="age" HeaderText="年龄"><ItemStyle HorizontalAlign="Center" /></asp:BoundField><asp:BoundField DataField="city" HeaderText="城市"><ItemStyle HorizontalAlign="Left" /></asp:BoundField><asp:BoundField DataField="formateName" HeaderText="关键字"><ItemStyle HorizontalAlign="Center" /></asp:BoundField></Columns><PagerTemplate><table style="width: 100%; font-size: 12px;"><tr><td style="float: right">第<asp:Label ID="label1" runat="server" Text="<%#((GridView)Container.Parent.Parent).PageIndex+1 %>"></asp:Label>页/共<asp:Label ID="labeltotal" runat="server" Text="<%#((GridView)Container.Parent.Parent).PageCount %>"></asp:Label>页&nbsp;&nbsp;<asp:LinkButton ID="firstPage" runat="server" CommandArgument="First" CommandName="Page" Visible="<%# ((GridView)Container.NamingContainer).PageIndex!=0 %>">首页</asp:LinkButton><asp:LinkButton ID="prevPage" runat="server" CommandArgument="Prev" CommandName="Page" Visible="<%# ((GridView)Container.NamingContainer).PageIndex != 0 %>">上一页</asp:LinkButton><asp:LinkButton ID="nextPage" runat="server" CommandArgument="Next" CommandName="Page" Visible="<%# ((GridView)Container.NamingContainer).PageIndex != ((GridView)Container.NamingContainer).PageCount-1 %>">下一页</asp:LinkButton><asp:LinkButton ID="lastPage" runat="server" CommandArgument="Last" CommandName="Page" Visible="<%# ((GridView)Container.NamingContainer).PageIndex != ((GridView)Container.NamingContainer).PageCount -1 %>">尾页</asp:LinkButton><asp:TextBox ID="txtnewPage" runat="server" Text="<%# ((GridView)Container.Parent.Parent).PageIndex + 1 %>" width="20px"></asp:TextBox><asp:LinkButton ID="btngo" runat="server" CausesValidation="false" CommandArgument="GO" CommandName="Page" Text="跳转" OnClick="btngo_Click"></asp:LinkButton></td></tr></table></PagerTemplate><EditRowStyle BackColor="#2461BF" /><FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" /><HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" /><PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Right" /><RowStyle BackColor="#EFF3FB" /><SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" /><SortedAscendingCellStyle BackColor="#F5F7FB" /><SortedAscendingHeaderStyle BackColor="#6D95E1" /><SortedDescendingCellStyle BackColor="#E9EBEF" /><SortedDescendingHeaderStyle BackColor="#4870BE" /></asp:GridView>

//后台代码

 protected void Page_Load(object sender, EventArgs e){if (!IsPostBack){Binds();}}public void Binds(){this.gridviewId.DataSource = new TestDAL().getStuBypageIndex(10, 1).DefaultView;this.gridviewId.DataBind();}protected void gridviewId_RowDataBound(object sender, GridViewRowEventArgs e){if (e.Row.RowType == DataControlRowType.DataRow){TableCellCollection cells = e.Row.Cells;foreach (TableCell cell in cells){cell.Text = Server.HtmlDecode(cell.Text);}}if (e.Row.RowIndex != -1){int index = this.gridviewId.PageIndex * this.gridviewId.PageSize + e.Row.RowIndex + 1;e.Row.Cells[0].Text = index.ToString();}}protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e){}protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e){this.gridviewId.PageIndex = e.NewPageIndex;Binds();}protected void btngo_Click(object sender, EventArgs e){if (((LinkButton)sender).CommandArgument.ToString().ToLower().Equals("go")) {// GridViewRow rowNum = this.gridviewId.BottomPagerRow;TextBox numBox = (TextBox)this.gridviewId.BottomPagerRow.FindControl("txtnewPage");int inputNum = Convert.ToInt32(numBox.Text);gridviewId.PageIndex = inputNum - 1;Binds();}}

分页方法DAL代码可以根据不同方式进行变换

   /// <summary>/// 学生表分页/// </summary>/// <param name="pagesize"></param>/// <param name="pageindex"></param>/// <returns></returns>public DataTable getStuBypageIndex(int pagesize, int pageindex){string sql = @"SELECT*FROM (SELECTROW_NUMBER() OVER (ORDER BY id ASC) AS rowname,*FROM Student) AS tempWHERE temp.rowname BETWEEN " + ((pageindex - 1) * pagesize + 1) + " AND " + (pagesize * pageindex) + "";DataTable dt = SqlHelper.GetDataTable(sql, CommandType.Text);return dt;}

实例类

 public class Student{public int Id { get; set; }public string name { get; set; }public int age { get; set; }public string city { get; set; }public string formateName { get; set; }public int subjectId { get; set; }}

SQLHelper帮助类

 public class SqlHelper{public static String connectionString = ConfigurationManager.ConnectionStrings["connStr"].ConnectionString;public static String ConnectionString{get { return SqlHelper.connectionString; }}/// <summary>/// 开启数据库/// </summary>/// <param name="comText"></param>/// <param name="comType"></param>/// <param name="parameters"></param>/// <returns></returns>private static SqlCommand PrepareCommand(string comText, CommandType comType, params SqlParameter[] parameters){SqlCommand com = new SqlCommand();com.CommandText = comText;com.CommandType = comType;com.Connection = new SqlConnection(ConnectionString);if (parameters != null && parameters.Length != 0){com.Parameters.AddRange(parameters);}com.Connection.Open();return com;}/// <summary>/// 增删改/// </summary>/// <param name="comText"></param>/// <param name="comType"></param>/// <param name="parameters"></param>/// <returns></returns>public static int ExecuteNonQuery(string comText, CommandType comType, params SqlParameter[] parameters){SqlCommand com = PrepareCommand(comText, comType, parameters);int result = com.ExecuteNonQuery();com.Connection.Close();return result;}/// <summary>/// 查询单个列/// </summary>/// <param name="comText"></param>/// <param name="comType"></param>/// <param name="parameters"></param>/// <returns></returns>public static object ExecuteScalar(string comText, CommandType comType, params SqlParameter[] parameters){SqlCommand com = PrepareCommand(comText, comType, parameters);object result = com.ExecuteScalar();com.Connection.Close();return result;}/// <summary>/// 查询多列/// </summary>/// <param name="comText"></param>/// <param name="comType"></param>/// <param name="parameters"></param>/// <returns></returns>public static SqlDataReader ExecuteReader(string comText, CommandType comType, params SqlParameter[] parameters){SqlCommand com = PrepareCommand(comText, comType, parameters);SqlDataReader result = com.ExecuteReader(CommandBehavior.CloseConnection);return result;}/// <summary>/// 绑定dataTable数据/// </summary>/// <param name="comText"></param>/// <param name="comType"></param>/// <param name="parameters"></param>/// <returns></returns>public static DataTable GetDataTable(string comText, CommandType comType, params SqlParameter[] parameters){SqlCommand com = PrepareCommand(comText, comType, parameters);SqlDataAdapter da = new SqlDataAdapter(com);DataSet ds = new DataSet();da.Fill(ds);com.Connection.Close();return ds.Tables[0];}/// <summary>/// 执行多条sql语句/// </summary>/// <param name="sqlTexts"></param>/// <returns></returns>public static Int32[] ExcuteSQL(params String[] sqlTexts){SqlConnection cn = new SqlConnection(ConnectionString);cn.Open();SqlCommand cmd = new SqlCommand();cmd.Connection = cn;//启动事务SqlTransaction trans;trans = cn.BeginTransaction();cmd.Transaction = trans;int num = 0;try{int[] affectRows = new int[sqlTexts.Length];for (int i = 0; i < affectRows.Length; ++i){if (sqlTexts[i] != null){cmd.CommandText = sqlTexts[i];affectRows[i] = cmd.ExecuteNonQuery();num = i;}}trans.Commit();return affectRows;}catch (Exception ex){trans.Rollback();string s = ex.Message;return null;}finally{cn.Close();}}}

web.config中拼接字符串

 <connectionStrings><add name="connStr" connectionString="server=服务器名称;DataBase=数据库名称";uid=用户登录名;pwd=密码/></connectionStrings>**不知道这样写好理解吗？**

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