使用EF框架和MVC進行分頁的好處
方便快捷,代碼量少。
案例演示
話不多說,直接上效果圖
我們以Roles表爲例,先看看錶裏的數據
控制器代碼:
public ActionResult Index(int pageIndex=1,int pageSize=10,string name="")
{
//獲取總記錄數
var totalRows = db.Roles.Count();
//計算總頁數
var totalPages = Math.Ceiling(totalRows * 1.00 / pageSize);
ViewBag.totalPages = totalPages;
var roles = db.Roles.Where(p=>p.Name.Contains(name))
.OrderBy(p=>p.ID) //排序
.Skip((pageIndex-1) * pageSize) //跳過
.Take(pageSize) //取
.ToList();
ViewBag.pageIndex = pageIndex;
ViewBag.name = name;
ViewBag.pageSize = pageSize;
return View(roles);
}
視圖代碼:
@{
ViewBag.Title = "Index";
}
<h2>角色列表</h2>
<div class="input-group">
<label>名稱:</label>
<input type="text" class="form-control" id="txtCondName" value="@ViewBag.name"/>
<input type="button" id="btnSearch" value="搜索" οnclick="page(1);" />
</div>
<table class="table table-bordered">
<thead>
<tr>
<th>編號</th>
<th>名稱</th>
<th>備註</th>
</tr>
</thead>
<tbody>
@foreach (var item in Model)
{
<tr>
<th>@item.ID</th>
<th>@item.Name</th>
<th>@item.Remark</th>
</tr>
}
</tbody>
</table>
<nav aria-label="...">
<ul class="pagination">
<li class="page-item ">
共 @ViewBag.totalPages 頁,第
<input type="number" min="1" max="@ViewBag.totalPages" id="pageIndex" value="@ViewBag.pageIndex" />
頁,每頁顯示
<select id="pageSize" οnchange="page(1);">
@{
var listPageSize = new List<int> { 5, 10, 20, 50, 100 };
}
@foreach (var item in listPageSize)
{
if (@ViewBag.pageSize == @item)
{
<option value="@item" selected="selected">@item</option>
}
else
{
<option value="@item">@item</option>
}
}
</select>
條
</li>
</ul>
<ul class="pagination">
<li class="page-item ">
<a class="page-link" href="javascript:page(1);" tabindex="-1" aria-disabled="true">首頁</a>
</li>
@if (@ViewBag.pageIndex > 1)
{
<li class="page-item"><a class="page-link" href="javascript:page(@ViewBag.pageIndex-1);">上頁</a></li>
}
else
{
<li class="page-item disabled"><a class="page-link" href="javascript:page(@ViewBag.pageIndex-1);">上頁</a></li>
}
<li class="page-item " aria-current="page">
<span class="page-link"> @ViewBag.pageIndex</span>
</li>
@if (@ViewBag.pageIndex < @ViewBag.totalPages)
{
<li class="page-item " aria-current="page">
<a class="page-link" href="javascript:page(@ViewBag.pageIndex+1);">下頁 </a>
</li>
}
else
{
<li class="page-item disabled" aria-current="page">
<a class="page-link" href="javascript:page(@ViewBag.pageIndex+1);">下頁 </a>
</li>
}
<li class="page-item">
<a class="page-link" href="javascript:page(@ViewBag.totalPages);">末頁</a>
</li>
<li class="page-item">
<input type="button" class="page-link" value="GO" οnclick="go()" />
</li>
</ul>
</nav>
@section scripts{
<script>
function page(pageIndex) {
var name = $("#txtCondName").val(); //獲取搜索框的值
var pageSize = $("#pageSize").val(); //獲取下拉框的值
window.location.href = "/role/index?pageindex=" + pageIndex
+ "&pageSize=" + pageSize + "&name=" + name;
}
function go() {
//獲取輸入的頁碼的值
var pageIndex = $("#pageIndex").val();
page(pageIndex);
}
</script>
}