asp.net分页代码

效果图： 

helper:

/// <summary>

  /// 高效分页       

  /// </summary>       

/// <param name="pageIndex">当前页码</param>        

/// <param name="pageSize">分页容量</param>       

  /// <param name="strKey">主键</param>       

  /// <param name="showString">显示的字段</param>        

/// <param name="queryString">查询字符串，支持联合查询</param>       

  /// <param name="whereString">查询条件，若有条件限制则必须以where 开头</param>      

   /// <param name="orderString">排序规则</param>       

  /// <param name="pageCount">传出参数：总页数统计</param>     

    /// <param name="recordCount">传出参数：总记录统计</param>      

   /// <returns>装载记录的DataTable</returns>        

public DataTable ExecutePager(int pageIndex, int pageSize, string strKey, string showString, string queryString, string whereString, string orderString, out int pageCount, out int recordCount)      

   {           

  if (pageIndex < 1) pageIndex = 1;      

       if (pageSize < 1) pageSize = 10;          

   if (string.IsNullOrEmpty(showString)) showString = "*";        

     if (string.IsNullOrEmpty(orderString)) orderString = strKey + " asc ";        

     using (SqlConnection connn = new SqlConnection(ConfigurationManager.ConnectionStrings["connStr"].ConnectionString))        

     {                 connn.Open();             

    string myVw = string.Format(" ( {0} ) tempVw ", queryString);             

    cmd = new SqlCommand(string.Format(" select count(*) as recordCount from {0} {1}", myVw, whereString), connn);

                recordCount = Convert.ToInt32(cmd.ExecuteScalar());

                if ((recordCount % pageSize) > 0)               

      pageCount = recordCount / pageSize + 1;          

       else                    

pageCount = recordCount / pageSize;          

     SqlCommand cmdRecord;            

     if (pageIndex == 1)//第一页              

   {                     cmdRecord = new SqlCommand(string.Format("select top {0} {1} from {2} {3} order by {4} ", pageSize, showString, myVw, whereString, orderString), connn);                 }         

        else if (pageIndex > pageCount)//超出总页数              

   {                     cmdRecord = new SqlCommand(string.Format("select top {0} {1} from {2} {3} order by {4} ", pageSize, showString, myVw, "where 1=2", orderString), connn);                 }        

         else           

      {           int pageLowerBound = pageSize * pageIndex;           

          int pageUpperBound = pageLowerBound - pageSize;                  

   string recordIDs = recordID(string.Format("select top {0} {1} from {2} {3} order by {4} ", pageLowerBound, strKey, myVw, whereString, orderString), pageUpperBound);            

         cmdRecord = new SqlCommand(string.Format("select {0} from {1} where {2} in ({3}) order by {4} ", showString, myVw, strKey, recordIDs, orderString), connn);

                }            

    SqlDataAdapter dataAdapter = new SqlDataAdapter(cmdRecord);            

     DataTable dt = new DataTable();           

      dataAdapter.Fill(dt);               

  connn.Close();          

       connn.Dispose();          

       return dt;        

     }     

    }

 

DAO:

 

  public DataTable GetAllBoatList(int PageIndex, int PageSize, out int PageCount, out int RecordCount, string strWhere)      {

         string strSql = "SELECT BoatId,BoatState,RegionType,BoatManagerType,BoatType,AreaName,BoatNo,BoatName from V_Web_GetBoatList";               string    strShow="BoatId,BoatState,RegionType,BoatManagerType,BoatType,AreaName,BoatNo,BoatName"; 

   return sqlhelper.ExecutePager(PageIndex, PageSize, "BoatId", strShow, strSql, strWhere, " BoatId asc ", out PageCount, out RecordCount);          

 

     }

 

前台:

  <div class="page_Right">
              <asp:Label ID="meiye" runat="server" ></asp:Label>
              <asp:TextBox ID="TextBox2" runat="server" Width="30px" Height="14px"
                  ontextchanged="TextBox2_TextChanged" AutoPostBack="True"></asp:TextBox>
              <asp:Label ID="gong" runat="server" ></asp:Label>
          <%--  <asp:Label runat="server" ID="PageMes"></asp:Label>--%>
            <asp:LinkButton ID="LBHome" runat="server" CssClass="pageBtn"
                onclick="LBHome_Click">[首页]</asp:LinkButton>
            <asp:LinkButton ID="LBUp" runat="server" CssClass="pageBtn"
                onclick="LBUp_Click">[上一页]</asp:LinkButton>
            <asp:LinkButton ID="LBNext" runat="server" CssClass="pageBtn"
                onclick="LBNext_Click">[下一页]</asp:LinkButton>
            <asp:LinkButton ID="LBEnd" runat="server" CssClass="pageBtn"
                onclick="LBEnd_Click">[尾页]</asp:LinkButton>
        </div>     <asp:HiddenField ID="HSelectID" runat="server" Value=""/>
    <asp:HiddenField ID="HWhere" runat="server" Value=""/>
    <asp:HiddenField ID="HNowPage" runat="server" Value="1"/>
    <asp:HiddenField ID="HPageSize" runat="server" Value="20"/>
    <asp:HiddenField ID="HAllPage" runat="server" Value="0" /> 

后台：

 

 private void BindData(string strClass)   

  {         int DataCount = 0;   

      int NowPage = 1;      

   int AllPage = 0;    

     int PageSize = Convert.ToInt32(HPageSize.Value);     

    switch (strClass)       

  {             case "goto":         

        NowPage = Convert.ToInt32(TextBox2.Text);      

           break;           

  case "next":             

    NowPage = Convert.ToInt32(HNowPage.Value) + 1;       

          break;          

   case "up":            

     NowPage = Convert.ToInt32(HNowPage.Value) - 1;      

           break;        

     case "end":                

NowPage = Convert.ToInt32(HAllPage.Value);              

   break;            

default:            

     break;         }

 

        DataTable dsLog = new BoatDAO().GetAllBoatList(NowPage, PageSize, out AllPage, out DataCount, HWhere.Value);      

   if (dsLog.Rows.Count == 0 || AllPage == 1)         {             LBEnd.Enabled = false;             LBHome.Enabled = false;             LBNext.Enabled = false;             LBUp.Enabled = false;         }      

   else if (NowPage == 1)         {             LBHome.Enabled = false;             LBUp.Enabled = false;             LBNext.Enabled = true;             LBEnd.Enabled = true;         }     

    else if (NowPage == AllPage)         {             LBHome.Enabled = true;             LBUp.Enabled = true;             LBNext.Enabled = false;             LBEnd.Enabled = false;         }      

   else         {             LBEnd.Enabled = true;             LBHome.Enabled = true;             LBNext.Enabled = true;             LBUp.Enabled = true;         }        

GridView1.DataSource = dsLog;    

     GridView1.DataBind();      

   //PageMes.Text = string.Format("[每页<font color=green>{0}</font>条 第<font color=red>{1}</font>页／共<font color=green>{2}</font>页   共<font color=green>{3}</font>条]", PageSize, NowPage, AllPage, DataCount);         meiye.Text = string.Format("[每页<font color=green>{0}</font>条 第", PageSize);      

   TextBox2.Text = string.Format("{0}",NowPage);       

  gong.Text = string.Format("页／共<font color=green>{0}</font>页   共<font color=green>{1}</font>条]", AllPage, DataCount);      

   HNowPage.Value = Convert.ToString(NowPage++);    

     HAllPage.Value = AllPage.ToString();

 

    }   

  protected void LBHome_Click(object sender, EventArgs e)     {         BindData("");     }

 

    protected void LBUp_Click(object sender, EventArgs e)     {         BindData("up");     }

 

    protected void LBNext_Click(object sender, EventArgs e)     {  BindData("next");     }

 

    protected void LBEnd_Click(object sender, EventArgs e)     {         BindData("end");     }

  protected void TextBox2_TextChanged(object sender, EventArgs e)
    {
        BindData("goto");
    }

 

 

来源：https://www.cnblogs.com/mnbvcxzsl/p/3178237.html