Pager paging components for WebForm MVC C # implementation _c# Tutorial

This article for everyone to share their own write a pager paging components, WEBFORM,MVC are applicable, specific content as follows

Paging controls actually pass parameters between pages based on links, because I see in MVC that you can see the new {para=val} passing arguments in this way, so I think of using dynamic as a Parameter object in a way that can mimic this passing parameter.

Here is the attached code for the specific implementation I wrote

Data processing code:

1. Define Ipagedlist Interface

Using System;
Using System.Collections.Generic;
Using System.Linq;
Using System.Text;
Using System.Threading.Tasks;

Namespace Infrastruction.pager
{public
  interface ipagedlist
  {
    int pageIndex {get; set;}
    int pageSize {get; set;}
    int Totalitemcount {get; set;}
    int Totalpagecount {get;}}}

2. Implement Ipagedlist interface

Using System;
Using System.Collections.Generic;
Using System.Linq;
Using System.Web;

Namespace Infrastruction.pager
{public
  class pagedlist<t>: List<t>, ipagedlist
  {
    public int PageIndex
    {get
      ;
      Set;
    }

    public int pageSize
    {get
      ;
      Set;
    }

    public int Totalitemcount
    {get
      ;
      Set;
    }

    public int Totalpagecount
    {
      get
      {return
        totalitemcount% pageSize = 0? (totalitemcount/pagesize): (totalitemcount/pagesize + 1);
      }
    }

    Public Pagedlist (ienumerable<t> sources, int pageIndex, int pageSize)
    {
      if (sources!= null && so Urces. Any ())
      {this
        . AddRange (sources. Skip (PageSize * (pageIndex-1)). Take (pageSize). ToList ());
      }
      This.pageindex = PageIndex;
      This.pagesize = pageSize;
      This.totalitemcount = sources. Count ();}}}

Pagination label Processing code:

3.PagerHelper

Using Infrastruction.pager;
Using System;
Using System.Collections.Generic;
Using System.Linq;
Using System.Reflection;
Using System.Text;
Using System.Web;

Using System.Web.UI; namespace System.Web.UI {public static class Pagerhelper {public static string Pager (string url, ipagedlist pag
      edlist) {StringBuilder builder = new StringBuilder (); if (pagedlist!= null) {Builder.
        Append ("<script type= ' Text/javascript ' >"); Builder.
        Append ("window.onload = function () {"); Builder.
        Append ("var elements = document.getElementById (' pager '). childnodes;"); Builder. Append ("for" (var i = 0; i < elements.length;
        i++) {"); Builder. Append ("var txt = Elements[i].innertext | |
        elements[i].textcontent; "); Builder.
        Append ("if" (Elements[i].nodetype = = ' 1 ' && txt = ' "+ pagedlist.pageindex +" ') {"); Builder.
        Append ("elements[i].style.textdecoration = ' underline '; break;}}}"); Builder. Append (";/script> "); Builder.

        Append ("<div id= ' pager ' >"); Builder.
        Append ("<span class= ' P ' >"); Builder.
        AppendFormat ("Total {0} data page times: {1}/{2}", Pagedlist.totalitemcount, Pagedlist.pageindex, Pagedlist.totalpagecount, "prev"); Builder.
        Append ("</span>"); Builder.
        Append (" "); Builder.
        Append (" "); Builder.
        Append (" "); Builder.
        Append (" "); if (Pagedlist.pageindex > 1 && pagedlist.pageindex <= pagedlist.totalpagecount) {Builder.
          Append ("<span class= ' P ' >"); Builder.
          AppendFormat ("<a href= ' {0}?pageindex={1} ' >{2}</a>", url, 1, "Home"); Builder.
          Append ("</span>"); Builder.
          Append (" "); Builder.
          Append ("<span class= ' P ' >"); Builder.
          AppendFormat ("<a href= ' {0}?pageindex={1} ' >{2}</a>", url, pagedlist.pageindex-1, "prev"); Builder.
          Append ("</span>"); BuildeR.append (" ");  } if (Pagedlist.totalpagecount > 1 && pagedlist.totalpagecount <=) {for (int i = 1; I <= Pagedlist.totalpagecount; i++) {Builder.
            Append ("<span class= ' P ' >"); Builder.
            AppendFormat ("<a href= ' {0}?pageindex={1} ' >{2}</a>", url, I, i); Builder.
            Append ("</span>"); Builder.
          Append (" ");
          } else if (Pagedlist.totalpagecount >) {if (Pagedlist.pageindex < 11) {for (int i = 1; I <= i++) {Builder.
              Append ("<span class= ' P ' >"); Builder.
              AppendFormat ("<a href= ' {0}?pageindex={1} ' >{2}</a>", url, I, i); Builder.
              Append ("</span>"); Builder.
            Append (" "); } builder.
            Append ("<span class= ' P ' >"); Builder. AppendFormat ("<a href= ' {0}?pageIndex={1} ' >{2}</a> ', url, 11, "..."); Builder.
            Append ("</span>"); Builder.
          Append (" "); else {Builder.
            Append ("<span class= ' P ' >"); Builder.
            AppendFormat ("<a href= ' {0}?pageindex={1} ' >{2}</a>", url, (pagedlist.pageindex-6), "..."); Builder.
            Append ("</span>"); Builder.
            Append (" ");
              if (pagedlist.pageindex >= && pagedlist.totalpagecount <= Pagedlist.pageindex + 5) { for (int i = pagedlist.pageindex-5 i <= pagedlist.totalpagecount; i++) {Builder .
                Append ("<span class= ' P ' >"); Builder.
                AppendFormat ("<a href= ' {0}?pageindex={1} ' >{2}</a>", url, I, i); Builder.
                Append ("</span>"); Builder.
              Append (" "); } else {for (int i =pagedlist.pageindex-5; I <= Pagedlist.pageindex + 5; i++) {Builder.
                Append ("<span class= ' P ' >"); Builder.
                AppendFormat ("<a href= ' {0}?pageindex={1} ' >{2}</a>", url, I, i); Builder.
                Append ("</span>"); Builder.
              Append (" "); } builder.
              Append ("<span class= ' P ' >"); Builder.
              AppendFormat ("<a href= ' {0}?pageindex={1} ' >{2}</a>", url, (Pagedlist.pageindex + 6), "..."); Builder.
              Append ("</span>"); Builder.
            Append (" "); }} if (Pagedlist.pageindex >= 1 && pagedlist.pageindex < Pagedlist.totalpageco UNT) {Builder.
          Append ("<span class= ' P ' >"); Builder.
          AppendFormat ("<a href= ' {0}?pageindex={1} ' >{2}</a>", url, Pagedlist.pageindex + 1, "next page"); Builder.
          Append ("</span>"); Builder. AppenD (" "); Builder.
          Append ("<span class= ' P ' >"); Builder.
          AppendFormat ("<a href= ' {0}?pageindex={1} ' >{2}</a>", url, Pagedlist.totalpagecount, "last"); Builder.
          Append ("</span>"); Builder.
        Append (" "); } builder.
      Append ("</div>"); Return builder.
    ToString (); public static string Pager (string url, ipagedlist pagedlist, dynamic objattr) {StringBuilder builder =
      New StringBuilder (); if (pagedlist!= null) {Builder.
        Append ("<script type= ' Text/javascript ' >"); Builder.
        Append ("window.onload = function () {"); Builder.
        Append ("var elements = document.getElementById (' pager '). childnodes;"); Builder. Append ("for" (var i = 0; i < elements.length;
        i++) {"); Builder. Append ("var txt = Elements[i].innertext | |
        elements[i].textcontent; "); Builder. Append ("if" (Elements[i].nodetype = = ' 1 ' && txt = ' "+ pagedlist.)PageIndex + "') {"); Builder.
        Append ("elements[i].style.textdecoration = ' underline '; break;}}}"); Builder.
        Append ("</script>");
        String paras = ""; propertyinfo[] Infos = Objattr.gettype ().
        GetProperties (); if (infos!= null && infos. Any ()) {foreach (var item in infos) {paras + = string. Format (' {0}={1} ', item. Name, item.
            GetValue (objattr, null));
          Paras = "&";
        } paras = paras + "pageindex="; Builder.

        Append ("<div id= ' pager ' >"); Builder.
        Append ("<span class= ' P ' >"); Builder.
        AppendFormat ("Total {0} data page times: {1}/{2}", Pagedlist.totalitemcount, Pagedlist.pageindex, Pagedlist.totalpagecount, "prev"); Builder.
        Append ("</span>"); Builder.
        Append (" "); Builder.
        Append (" "); Builder.
        Append (" "); Builder.


        Append (" "); if (Pagedlist.pageindex > 1 && PagEdlist.pageindex <= pagedlist.totalpagecount) {Builder.
          Append ("<span class= ' P ' >"); Builder. AppendFormat ("<a href= ' {0}?{
          1} ' >{2}</a> ', URL, paras + 1, "homepage"); Builder.
          Append ("</span>"); Builder.
          Append (" "); Builder.
          Append ("<span class= ' P ' >"); Builder. AppendFormat ("<a href= ' {0}?{
          1} ' >{2}</a> ', URL, paras + (pagedlist.pageindex-1), "prev"); Builder.
          Append ("</span>"); Builder.
        Append (" ");  } if (Pagedlist.totalpagecount > 1 && pagedlist.totalpagecount <=) {for (int i = 1; I <= Pagedlist.totalpagecount; i++) {Builder.
            Append ("<span class= ' P ' >"); Builder. AppendFormat ("<a href= ' {0}?{
            1} ' >{2}</a> ', URL, paras + i, i); Builder.
            Append ("</span>"); Builder.
          Append (" "); } else if (PagedliSt.totalpagecount > {if (Pagedlist.pageindex <) {for (int i = 1; i <= 10; i++) {Builder.
              Append ("<span class= ' P ' >"); Builder. AppendFormat ("<a href= ' {0}?{
              1} ' >{2}</a> ', URL, paras + i, i); Builder.
              Append ("</span>"); Builder.
            Append (" "); } builder.
            Append ("<span class= ' P ' >"); Builder. AppendFormat ("<a href= ' {0}?{
            1} ' >{2}</a> ', URL, paras + 11, "..."); Builder.
            Append ("</span>"); Builder.
          Append (" "); else {Builder.
            Append ("<span class= ' P ' >"); Builder. AppendFormat ("<a href= ' {0}?{
            1} ' >{2}</a> ', URL, paras + (pagedlist.pageindex-6), "..."); Builder.
            Append ("</span>"); Builder.
            Append (" "); if (Pagedlist.pageindex >= && PagedlIst.totalpagecount <= Pagedlist.pageindex + 5) {for (int i = pagedlist.pageindex-5; I < = Pagedlist.totalpagecount; i++) {Builder.
                Append ("<span class= ' P ' >"); Builder. AppendFormat ("<a href= ' {0}?{
                1} ' >{2}</a> ', URL, paras + i, i); Builder.
                Append ("</span>"); Builder.
              Append (" "); } else {for (int i = pagedlist.pageindex-5 I <= pagedlist.pagei Ndex + 5; i++) {Builder.
                Append ("<span class= ' P ' >"); Builder. AppendFormat ("<a href= ' {0}?{
                1} ' >{2}</a> ', URL, paras + i, i); Builder.
                Append ("</span>"); Builder.
              Append (" "); } builder.
              Append ("<span class= ' P ' >"); Builder. AppendFormat ("<a href= ' {0}?{ 1} ' >{2}</a> ', URL, paras + (PagedlIst.pageindex + 6), "..."); Builder.
              Append ("</span>"); Builder.
            Append (" "); }} if (Pagedlist.pageindex >= 1 && pagedlist.pageindex < PAGEDLIST.TOTALPAGEC Ount) {Builder.
          Append ("<span class= ' P ' >"); Builder. AppendFormat ("<a href= ' {0}?{
          1} ' >{2}</a> ', URL, paras + (Pagedlist.pageindex + 1), "next page"); Builder.
          Append ("</span>"); Builder.
          Append (" "); Builder.
          Append ("<span class= ' P ' >"); Builder. AppendFormat ("<a href= ' {0}?{
          1} ' >{2}</a> ', URL, paras + pagedlist.totalpagecount, "last"); Builder.
          Append ("</span>"); Builder.
        Append (" "); } builder.
      Append ("</div>"); Return builder.
    ToString ();
 

 }



  }
}

4. Pagerlinqextension (based on LINQ extensions)

Using System;
Using System.Collections.Generic;
Using System.Linq;
Using System.Linq.Expressions;
Using System.Web;

Namespace Infrastruction.pager
{public
  static class Pagerlinqextension
  {public

    static pagedlist <T> topagedlist<t> (this iqueryable<t> source, int pageIndex, int pageSize)
    {return
      new Pagedlist<t> (source, PageIndex, pageSize);}}

Call method

1.Webform Call: <%=pagerhelper.pager ("Products.aspx", PageList, new {cid=cid})%> or bound in the background with literal

2.MVC Call:

Need to extend the method

Namespace System.Web.Mvc.Html
{public
  static class Htmlextension
  {public
    static ihtmlstring Pager ( This is HtmlHelper helper, string url, ipagedlist pagedlist)
    {return
      helper. Raw (Pagerhelper.pager (URL, pagedlist));
    public static ihtmlstring Pager (This htmlhelper helper, string url, ipagedlist pagedlist, dynamic objattr)
    {
      ret Urn Helper. Raw (Pagerhelper.pager (URL, pagedlist, objattr));}}

The page then calls @Html. Pager ("Products.aspx", PageList, new {cid=cid,......})

All the code is on the above, I hope you study hard, for everyone to learn to use pagination control to help.