Data class code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Collections;
using System.Reflection;
namespace DAL
{
public class UserManageClass
{
/// <summary>
/// Get total pages
/// </summary>
/// <returns> Total number of pages </returns>
public int GetPageCount()
{
int counts;
string SqlStr = "select count(0) from [User]";
counts = new SQLHelper().Content(SqlStr, CommandType.Text);
return counts;
}
/// <summary>
/// Take out every 1 The content of the page
/// </summary>
/// <param name="SatrPage"> Start pages </param>
/// <param name="EndPage"> The end of the page </param>
/// <returns> every 1 The content of the page </returns>
public DataTable GetPageDate(string SatrPage, string EndPage)
{
DataTable dt;
string SqlStr = @"select * from
(select *, ROW_NUMBER() over(order by id)as no_ from [User])aa
where aa.no_ between '"+SatrPage+"' and '"+EndPage+"'";
dt = new SQLHelper().ExecuteQuery(SqlStr, CommandType.Text);
return dt;
}
/// <summary>
/// will 1 a DataTable Convert to list
/// </summary>
/// <typeparam name="T"> The type of the entity object </typeparam>
/// <param name="dt"> To convert DataTable</param>
/// <returns></returns>
public List<T> DataTableToEntityList<T>(DataTable dt)
{
List<T> entiyList = new List<T>();
Type entityType = typeof(T);
PropertyInfo[] entityProperties = entityType.GetProperties();
foreach (DataRow row in dt.Rows)
{
T entity = Activator.CreateInstance<T>();
foreach (PropertyInfo propInfo in entityProperties)
{
if (dt.Columns.Contains(propInfo.Name))
{
if (!row.IsNull(propInfo.Name))
{
propInfo.SetValue(entity, row[propInfo.Name], null);
}
}
}
entiyList.Add(entity);
}
return entiyList;
}
}
}PageService.ashx.cs1 like handler code:
using System;
using System.Collections;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Xml.Linq;
using System.Data.SqlClient;
using DAL;
using System.Web.Extensions;
using System.Web.Script.Serialization;
using Model;
using System.Web.UI.MobileControls;
using System.Collections.Generic;
namespace LandingSystem
{
/// <summary>
/// $codebehindclassname$ Summary of
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
public class PageService : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
string action = context.Request["action"];
if (action == "GetPageCount")
{
int counts = new UserManageClass().GetPageCount();
int page = counts / 3;
if (counts % 3 != 0)
{
page++;
}
context.Response.Write(page);
}
else if (action == "GetPageData")
{
int pageNo = Convert.ToInt32(context.Request["PageNo"]);
string SatrPage = ((pageNo - 1) * 3 + 1).ToString();
string EndPage = (pageNo * 3).ToString();
DataTable dt= new UserManageClass().GetPageDate(SatrPage, EndPage);
IList<RegisterModel> data = ModelConvertHelper<RegisterModel>.ConvertToModel(dt);
// IList<RegisterModel> data = new UserManageClass().DataTableToEntityList<RegisterModel>(dt);
var p1 = data.Select(c => new { c.Name,c.Phone});
#region The waste code
// var p1 = data.Select( c => new { c.Name,c.Phone});
//var p1=data.Select(dr=>new {dr["Name"].ToString(),dr["Phone"].ToString()});
//var T_model = new List<RegisterModel>();
//var p3 = T_model.Select(c => new { c.Name, c.Phone });
//var p2=data.Select(c=>new {})
#endregion
JavaScriptSerializer jss = new JavaScriptSerializer();
context.Response.Write(jss.Serialize(p1));
}
}
public bool IsReusable
{
get
{
return false;
}
}
}
}aspx page code:
<head runat="server">
<title> No title page </title>
<script src="JS/jquery-latest.js" type="text/javascript"></script>
<script type="text/javascript">
$(function(){
//-----------------------------------------------------------
function getPageData(pageNo){ // Method of getting data from a page
$.post("PageService.ashx",{"action":"GetPageData","PageNo":pageNo},function(data,status){
if(status=="success"){
$("#Comment").empty();
var comments=$.parseJSON(data); // deserialization json The data.
for(var i=0;i<comments.length;i++){
var row=comments[i];
var li= $("<li>"+row.Name+" : "+row.Phone+"</li>");
$("#Comment").append(li); // Each took out 1 Bar data is created 1 a li and append to Comment/ul Inside.
}
}
});
}
//-------------------------------------------------------------------
getPageData(1); // When you first enter the page, you see no 1 Pages of data
//----------------------------------------------------------------/
// Gets all the pages and initializes the split page button
$.post("PageService.ashx",{"action":"GetPageCount"},function(data,status){
if(status=="success"){
var tr1=$("<tr></tr>");
var pageNo=parseInt(data);
for(var i=1;i<=pageNo;i++){
var td=$("<td><a href=''>"+i+"</a></td>");
tr1.append(td);
}
$("#pageNo").append(tr1);
$("#pageNo a").click(function(e){ // Once the page number is created, it is for each 1 Page number monitoring 1 a click Events.
e.preventDefault(); // cancel a Default jump behavior
getPageData($(this).html()); // Click to perform the operation to fetch the page data.
});
}
});
//----------------------------------------------------------------------------
});
</script>
</head>
<body>
<table>
<tr>
<td>
<ul id="Comment"></ul>
</td>
</tr>
</table>
<br />
Pages:
<table id="pageNo"></table>
</body>
</html>ModelConvertHelper.cs (converts datatable to list generic class) code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;
using System.Data;
using System.Reflection;
namespace DAL
{
public class ModelConvertHelper<T> where T : new ()
{
public static IList<T> ConvertToModel(DataTable dt)
{
IList<T> ts = new List<T>();
Type type=typeof(T);
string tempName = "";
foreach (DataRow dr in dt.Rows)
{
T t = new T();
// Get the common properties for this model
PropertyInfo[] propertys = t.GetType().GetProperties();
foreach (PropertyInfo pi in propertys)
{
tempName = pi.Name;
// check DataTable Contains this column
if (dt.Columns.Contains(tempName))
{
// Determine if this property is present Setter
if (!pi.CanRead) continue;
object value = dr[tempName];
if (value != DBNull.Value)
if (pi.PropertyType == typeof(int))
{
pi.SetValue(t, Convert.ToInt32(value), null);
}
else if (pi.PropertyType == typeof(string))
{
pi.SetValue(t, value.ToString(), null);
}
//pi.SetValue(t, value, null);
}
}
ts.Add(t);
}
return ts;
}
}
}