YaeBlog/YaeBlog/Pages/BlogIndex.razor

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@page "/blog"
@using YaeBlog.Core.Abstractions
@using YaeBlog.Core.Models
@inject IEssayContentService Contents
@inject NavigationManager NavigationInstance
<PageTitle>
Ricardo's Blog
</PageTitle>
<div class="container">
<div class="row">
<div class="col-sm-12 col-md-9">
@foreach (KeyValuePair<string, BlogEssay> pair in _essays)
{
<EssayCard Essay="@(pair.Value)"/>
}
<div class="row align-items-center justify-content-center p-3">
@if (_page == 1)
{
<div class="col-auto fw-light">上一页</div>
}
else
{
<div class="col-auto">
<a href="/blog/?page=@(_page - 1)">上一页</a>
</div>
}
@if (_page == 1)
{
<div class="col-auto">
1
</div>
<div class="col-auto">
<a href="/blog/?page=2">2</a>
</div>
<div class="col-auto">
<a href="/blog/?page=3">3</a>
</div>
}
else if (_page == _pageCount)
{
<div class="col-auto">
<a href="/blog/?page=@(_pageCount - 2)">@(_pageCount - 2)</a>
</div>
<div class="col-auto">
<a href="/blog/?page=@(_pageCount - 1)">@(_pageCount - 1)</a>
</div>
<div class="col-auto">
@(_pageCount)
</div>
}
else
{
<div class="col-auto">
<a href="/blog/?page=@(_page - 1)">@(_page - 1)</a>
</div>
<div class="col-auto">
@(_page)
</div>
<div class="col-auto">
<a href="/blog/?page=@(_page + 1)">@(_page + 1)</a>
</div>
}
@if (_page == _pageCount)
{
<div class="col-auto fw-light">
下一页
</div>
}
else
{
<div class="col-auto">
<a href="/blog/?page=@(_page + 1)">下一页</a>
</div>
}
</div>
</div>
<div class="col-sm-12 col-md-3">
<BlogInformationCard/>
</div>
</div>
</div>
@code {
[SupplyParameterFromQuery] private int? Page { get; set; }
private readonly List<KeyValuePair<string, BlogEssay>> _essays = [];
private const int EssaysPerPage = 8;
private int _pageCount = 1;
private int _page = 1;
protected override void OnInitialized()
{
_page = Page ?? 1;
_pageCount = Contents.Essays.Count / EssaysPerPage + 1;
if (EssaysPerPage * _page > Contents.Essays.Count + EssaysPerPage)
{
NavigationInstance.NavigateTo("/NotFount");
return;
}
_essays.AddRange(Contents.Essays
.OrderByDescending(p => p.Value.PublishTime)
.Skip((_page - 1) * EssaysPerPage)
.Take(EssaysPerPage));
}
}