.NET Core Linq extension for paging.

Default.cshtml

<!-- You can place this file in Shared/Components/Pager/Default.cshtml -->

@model PagedResultBase

@{
    var urlTemplate = Url.Action() + "?page={0}";
    var request = ViewContext.HttpContext.Request;
    foreach (var key in request.Query.Keys)
    {
        if (key == "page")
        {
            continue;
        }

        urlTemplate += "&" + key + "=" + request.Query[key];
    }

    var startIndex = Math.Max(Model.CurrentPage - 5, 1);
    var finishIndex = Math.Min(Model.CurrentPage + 5, Model.PageCount);
}

<!-- <div class="row">
    <div class="col-md-8 col-sm-8 items-info">
        Items @Model.FirstRowOnPage to @Model.LastRowOnPage of @Model.RowCount total
    </div>
</div> -->

<div class="row d-flex justify-content-center margin-top-20">
    <div>
        @if (Model.PageCount > 1)
        {
            <ul class="pagination pull-right">
                <li class="page-item"><a href="@urlTemplate.Replace("{0}", "1")" class="page-link">&laquo;</a></li>
                @for (var i = startIndex; i <= finishIndex; i++)
                {
                    @if (i == Model.CurrentPage)
                    {

                        <li class="page-item active"><span class="page-link">@i</span></li>
                    }
                    else
                    {

                        <li class="page-item"><a href="@urlTemplate.Replace("{0}", i.ToString())" class="page-link">@i</a></li>
                    }
                }
                <li class="page-item"><a href="@urlTemplate.Replace("{0}", Model.PageCount.ToString())" class="page-link">&raquo;</a></li>
            </ul>
        }
    </div>
</div>

example

public IActionResult Search(DateTime? fromDate, DateTime? toDate, string keyword, int page = 1)
{
    var bookings = _db.Bookings....'your conditions'.....GetPaged(page, 100);
    return View("Index", bookings);
}

LinqExtension.cs

using System;
using System.Linq;

public static class LinqExtensions
{
    public static PagedResult<T> GetPaged<T>(this IQueryable<T> query,
                                             int page, int pageSize = 25) where T : class
    {
        var result = new PagedResult<T>();
        result.CurrentPage = page;
        result.PageSize = pageSize;
        result.RowCount = query.Count();

        var pageCount = (double)result.RowCount / pageSize;
        result.PageCount = (int)Math.Ceiling(pageCount);

        var skip = (page - 1) * pageSize;
        result.Results = query.Skip(skip).Take(pageSize).ToList();

        return result;
    }
}

PageResultBase.cs

using System;
using System.Collections.Generic;

public abstract class PagedResultBase
{
    public int CurrentPage { get; set; }
    public int PageCount { get; set; }
    public int PageSize { get; set; }
    public int RowCount { get; set; }

    public int FirstRowOnPage
    {

        get { return (CurrentPage - 1) * PageSize + 1; }
    }

    public int LastRowOnPage
    {
        get { return Math.Min(CurrentPage * PageSize, RowCount); }
    }
}

public class PagedResult<T> : PagedResultBase where T : class
{
    public IList<T> Results { get; set; }

    public PagedResult()
    {
        Results = new List<T>();
    }
}

PageViewComponent.cs

using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;

public class PagerViewComponent : ViewComponent
{
    public Task<IViewComponentResult> InvokeAsync(PagedResultBase result)
    {
        return Task.FromResult((IViewComponentResult)View("Default", result));
    }
}

view example

@model PagedResult<Booking

... Your HTML..

<tbody>
    @foreach (var item in Model.Results) 
    {
        <tr>
            <th>@item.Id</th>
        </tr>
    }
</tbody>

...

@(await Component.InvokeAsync<PagerViewComponent>(Model))