Razor 使用多个搜索字符串ASP.NET Core Visual Studio 2017向视图添加分页链接-搜索字符串未被接管
我正在参考这个例子开发一个分页索引视图 在我的索引页上,我使用了3个搜索字符串 排序效果很好,但不需要搜索参数。 输入搜索字符串后,只要我尝试进行排序,就没有任何效果。 应该接管搜索字符串。它没有发生 此外,插入搜索字符串后的分页也不能正常工作。名为Razor 使用多个搜索字符串ASP.NET Core Visual Studio 2017向视图添加分页链接-搜索字符串未被接管,razor,asp.net-core-mvc,visual-studio-2017,entity-framework-core,asp.net-core-1.1,Razor,Asp.net Core Mvc,Visual Studio 2017,Entity Framework Core,Asp.net Core 1.1,我正在参考这个例子开发一个分页索引视图 在我的索引页上,我使用了3个搜索字符串 排序效果很好,但不需要搜索参数。 输入搜索字符串后,只要我尝试进行排序,就没有任何效果。 应该接管搜索字符串。它没有发生 此外,插入搜索字符串后的分页也不能正常工作。名为CurrentFilterxxx的视图数据元素为视图提供当前过滤器字符串。此值必须包含在分页链接中,以便在分页期间保持过滤器设置,并且在重新显示页面时必须将其恢复到文本框中。 就我而言,它不起作用 这里是控制器类的索引方法: public async
CurrentFilterxxx
的视图数据元素为视图提供当前过滤器字符串。此值必须包含在分页链接中,以便在分页期间保持过滤器设置,并且在重新显示页面时必须将其恢复到文本框中。
就我而言,它不起作用
这里是控制器类的索引方法:
public async Task<IActionResult> Index(
string sortOrder,
string searchStringComune,
string searchStringProvincia,
string searchStringRegione,
string searchString,
string currentFilter,
int? page)
{
ViewData["CurrentSort"] = sortOrder;
ViewData["ComuneSortParm"] = String.IsNullOrEmpty(sortOrder) ? "comune" : "";
ViewData["ProvinciaSortParm"] = String.IsNullOrEmpty(sortOrder) ? "provincia" : "";
ViewData["RegioneSortParm"] = String.IsNullOrEmpty(sortOrder) ? "regione" : "";
ViewData["PostalCodeSortParm"] = String.IsNullOrEmpty(sortOrder) ? "CAP" : "";
ViewData["AbitantsSortParm"] = String.IsNullOrEmpty(sortOrder) ? "abitanti" : "";
if (searchStringComune != null ||
searchStringProvincia != null ||
searchStringRegione != null ||
searchString != null)
{
page = 1;
if (searchStringComune != null)
{
searchString = searchStringComune;
}
if (searchStringProvincia != null)
{
searchString = searchStringProvincia;
}
if (searchStringRegione != null)
{
searchString = searchStringRegione;
}
}
else
{
searchString = currentFilter;
}
ViewData["CurrentFilterComune"] = searchStringComune;
ViewData["CurrentFilterProvincia"] = searchStringProvincia;
ViewData["CurrentFilterRegione"] = searchStringRegione;
ViewData["CurrentFilter"] = searchString;
var comuni = from s in _context.Listacomuniitaliani
select s;
if (!String.IsNullOrEmpty(searchStringComune) ||
!String.IsNullOrEmpty(searchStringProvincia) ||
!String.IsNullOrEmpty(searchStringRegione))
{
comuni = comuni.Where(s => s.Comune.Equals(searchStringComune) ||
s.Provincia.Equals(searchStringProvincia) ||
s.Regione.Equals(searchStringRegione));
}
switch (sortOrder)
{
case "comune":
comuni = comuni.OrderByDescending(s => s.Comune);
break;
case "provincia":
comuni = comuni.OrderBy(s => s.Provincia);
break;
case "regione":
comuni = comuni.OrderBy(s => s.Regione);
break;
case "CAP":
comuni = comuni.OrderBy(s => s.Cap);
break;
case "abitanti":
comuni = comuni.OrderBy(s => s.Abitanti);
break;
default:
comuni = comuni.OrderBy(s => s.Comune);
break;
}
int pageSize = 7;
return View(await PaginatedList<Listacomuniitaliani>.CreateAsync(comuni.AsNoTracking(), page ?? 1, pageSize));
}
公共异步任务索引(
字符串排序器,
字符串搜索StringComune,
字符串搜索StringProvincia,
字符串搜索StringRegiOne,
字符串搜索字符串,
字符串过滤器,
int(第页)
{
ViewData[“CurrentSort”]=排序器;
ViewData[“ComuneSortParm”]=String.IsNullOrEmpty(排序器)?“comune”:“”;
ViewData[“ProvinciaSortParam”]=String.IsNullOrEmpty(排序器)?“provincia”:“”;
ViewData[“RegioneSortParam”]=String.IsNullOrEmpty(排序器)?“regione”:“”;
ViewData[“PostalCountParam”]=String.IsNullOrEmpty(排序器)?“CAP”:“;
ViewData[“AbitantsSortParm”]=String.IsNullOrEmpty(排序器)?“abitanti”:“;
如果(searchStringComune!=null||
searchStringProvincia!=空||
searchStringRegione!=null||
searchString!=null)
{
page=1;
if(searchStringComune!=null)
{
searchString=searchStringComune;
}
如果(searchStringProvincia!=null)
{
searchString=searchStringProvincia;
}
if(searchStringRegione!=null)
{
searchString=searchStringRegione;
}
}
其他的
{
searchString=currentFilter;
}
ViewData[“CurrentFilterComune”]=searchStringComune;
ViewData[“CurrentFilterProvincia”]=searchStringProvincia;
ViewData[“CurrentFilterRegione”]=searchStringRegione;
ViewData[“CurrentFilter”]=searchString;
var comuni=来自于_context.listacomunii中的s
选择s;
如果(!String.IsNullOrEmpty(searchStringComune)||
!String.IsNullOrEmpty(searchStringProvincia)||
!String.IsNullOrEmpty(searchStringRegione))
{
comuni=comuni.Where(s=>s.Comune.Equals(searchStringComune)||
s、 Provincia.Equals(searchStringProvincia)||
s、 Regione.Equals(Regione));
}
开关(分拣机)
{
案例“comune”:
comuni=comuni.OrderByDescending(s=>s.Comune);
打破
案例“provincia”:
comuni=comuni.OrderBy(s=>s.Provincia);
打破
“区域一号”案件:
comuni=comuni.OrderBy(s=>s.Regione);
打破
案例“CAP”:
comuni=comuni.OrderBy(s=>s.Cap);
打破
“abitanti”案:
comuni=comuni.OrderBy(s=>s.Abitanti);
打破
违约:
comuni=comuni.OrderBy(s=>s.Comune);
打破
}
int pageSize=7;
返回视图(等待PaginatedList.CreateAsync(comuni.AsNoTracking(),第1页,pageSize));
}
这里是我的索引代码:
@model PaginatedList<MyProjectName.Models.Listacomuniitaliani>
@{ViewData["Title"] = "Index";}
<h2>Index</h2>
<p>
<a asp-action="Create">Create New</a>
</p>
<form asp-action="Index" method="get">
<div class="form-actions no-color">
<p>
Cerca un comune: <input type="text" name="SearchStringComune" value="@ViewData["currentFilterComune"]" />
<input type="submit" value="trova" class="btn btn-default" />
</p>
</div>
</form>
<form asp-action="Index" method="get">
<div class="form-actions no-color">
<p>
Seleziona una provincia: <input type="text" name="SearchStringProvincia" value="@ViewData["currentFilterProvincia"]" />
<input type="submit" value="trova" class="btn btn-default" />
</p>
</div>
@model分页列表
@{ViewData[“Title”]=“Index”;}
指数
创造新的
Cerca联合国委员会:
省政府:
塞莱齐奥纳地区:
托纳·因迪特罗·阿拉·利斯塔酒店
伊斯塔特
科穆尼
省
大区
前缀
帽子
科德菲斯科
阿比坦蒂
链接
@foreach(模型中的var项目){
@DisplayFor(modelItem=>item.Istat)
@DisplayFor(modeleItem=>item.Comune)
@DisplayFor(modelItem=>item.Provincia)
@DisplayFor(modelItem=>item.Regione)
@DisplayFor(modelItem=>item.Prefisso)
@DisplayFor(modelItem=>item.Cap)
@DisplayFor(modeleItem=>item.CodFisco)
@DisplayFor(modelItem=>item.Abitanti)
@DisplayFor(modelItem=>item.Link)
编辑|
细节|
删除
}
@{
var prevDisabled=!Model.HasPreviousPage?“已禁用”:“;
var nextisabled=!Model.HasNextPage?“已禁用”:“;
}
以前的
下一个
没有使用标记帮助程序asp route currentFilter
;例如asp路由currentFilterComune
非常感谢您的帮助。我已经让它工作了。
要做到这一点,我必须重新设计
<form asp-action="Index" method="get">
<div class="form-actions no-color">
<p>
Seleziona una regione: <input type="text" name="SearchStringRegione" value="@ViewData["currentFilterRegione"]" />
<input type="submit" value="trova" class="btn btn-default" />
</p>
</div>
<form asp-action="Index" method="get">
<div class="form-actions no-color">
<p>
<a asp-action="Index">Torna indietro alla lista</a>
</p>
</div>
<table class="table">
<thead>
<tr>
<th>
Istat
</th>
<th>
<a asp-action="Index" asp-route-sortOrder="@ViewData["ComuneSortParm"]"
asp-route-currentFilterComune="@ViewData["CurrentFilterComune"]">Comune</a>
</th>
<th>
<a asp-action="Index" asp-route-sortOrder="@ViewData["ProvinciaSortParm"]"
asp-route-currentFilterProvincia="@ViewData["CurrentFilterProvincia"]">Provincia</a>
</th>
<th>
<a asp-action="Index" asp-route-sortOrder="@ViewData["RegioneSortParm"]"
asp-route-currentFilterRegione="@ViewData["CurrentFilterRegione"]">Regione</a>
</th>
<th>
Prefisso
</th>
<th>
<a asp-action="Index" asp-route-sortOrder="@ViewData["PostalCodeSortParm"]">CAP</a>
</th>
<th>
CodFisco
</th>
<th>
<a asp-action="Index" asp-route-sortOrder="@ViewData["AbitantsSortParm"]">Abitanti</a>
</th>
<th>
Link
</th>
<th></th>
</tr>
</thead>
<tbody>
@foreach (var item in Model) {
<tr>
<td>
@Html.DisplayFor(modelItem => item.Istat)
</td>
<td>
@Html.DisplayFor(modelItem => item.Comune)
</td>
<td>
@Html.DisplayFor(modelItem => item.Provincia)
</td>
<td>
@Html.DisplayFor(modelItem => item.Regione)
</td>
<td>
@Html.DisplayFor(modelItem => item.Prefisso)
</td>
<td>
@Html.DisplayFor(modelItem => item.Cap)
</td>
<td>
@Html.DisplayFor(modelItem => item.CodFisco)
</td>
<td>
@Html.DisplayFor(modelItem => item.Abitanti)
</td>
<td>
@Html.DisplayFor(modelItem => item.Link)
</td>
<td>
<a asp-action="Edit" asp-route-id="@item.Id">Edit</a> |
<a asp-action="Details" asp-route-id="@item.Id">Details</a> |
<a asp-action="Delete" asp-route-id="@item.Id">Delete</a>
</td>
</tr>
}
</tbody>
</table>
@{
var prevDisabled = !Model.HasPreviousPage ? "disabled" : "";
var nextDisabled = !Model.HasNextPage ? "disabled" : "";
}
<a asp-action="Index"
asp-route-sortOrder="@ViewData["CurrentSort"]"
asp-route-page="@(Model.PageIndex - 1)"
@*asp-route-currentFilter="@ViewData["CurrentFilter"]"*@
asp-route-currentFilterComune="@ViewData["CurrentFilterComune"]"
asp-route-currentFilterRegione="@ViewData["CurrentFilterRegione"]"
asp-route-currentFilterProvincia="@ViewData["CurrentFilterProvincia"]"
class="btn btn-default @prevDisabled">
Previous
</a>
<a asp-action="Index"
asp-route-sortOrder="@ViewData["CurrentSort"]"
asp-route-page="@(Model.PageIndex + 1)"
@*asp-route-currentFilter="@ViewData["CurrentFilter"]"*@
asp-route-currentFilterComune="@ViewData["CurrentFilterComune"]"
asp-route-currentFilterRegione="@ViewData["CurrentFilterRegione"]"
asp-route-currentFilterProvincia="@ViewData["CurrentFilterProvincia"]"
class="btn btn-default ifextDisabled">
Next
</a>
public async Task<IActionResult> Index(
string sortOrder,
string searchStringComune,
string searchStringProvincia,
string searchStringRegione,
string searchString,
string currentFilter,
int? page)
{
ViewData["CurrentSort"] = sortOrder;
ViewData["ComuneSortParm"] = String.IsNullOrEmpty(sortOrder) ? "comune" : "";
ViewData["ProvinciaSortParm"] = String.IsNullOrEmpty(sortOrder) ? "provincia" : "";
ViewData["RegioneSortParm"] = String.IsNullOrEmpty(sortOrder) ? "regione" : "";
ViewData["PostalCodeSortParm"] = String.IsNullOrEmpty(sortOrder) ? "CAP" : "";
ViewData["AbitantsSortParm"] = String.IsNullOrEmpty(sortOrder) ? "abitanti" : "";
if (searchStringComune != null ||
searchStringProvincia != null ||
searchStringRegione != null ||
searchString != null)
{
page = 1;
}
else
{
searchStringProvincia = currentFilter;
searchStringRegione = currentFilter;
foreach (ItalianRegions itemRegion in Enum.GetValues(typeof(ItalianRegions)))
{
if (searchStringRegione == itemRegion.ToString())
{
searchStringProvincia = null;
}
}
foreach (ItalianComunes itemComune in Enum.GetValues(typeof(ItalianComunes)))
{
if (searchStringProvincia == itemComune.ToString())
{
searchStringRegione = null;
}
}
}
ViewData["CurrentFilterComune"] = searchStringComune;
ViewData["CurrentFilterProvincia"] = searchStringProvincia;
ViewData["CurrentFilterRegione"] = searchStringRegione;
ViewData["CurrentFilter"] = searchString;
var comuni = from s in _context.Listacomuniitaliani
select s;
if (!String.IsNullOrEmpty(searchStringComune) ||
!String.IsNullOrEmpty(searchStringProvincia) ||
!String.IsNullOrEmpty(searchStringRegione))
{
comuni = comuni.Where(s => s.Comune.Equals(searchStringComune) ||
s.Provincia.Equals(searchStringProvincia) ||
s.Regione.Equals(searchStringRegione));
}
switch (sortOrder)
{
case "comune":
comuni = comuni.OrderByDescending(s => s.Comune);
break;
case "provincia":
comuni = comuni.OrderBy(s => s.Provincia);
break;
case "regione":
comuni = comuni.OrderBy(s => s.Regione);
break;
case "CAP":
comuni = comuni.OrderBy(s => s.Cap);
break;
case "abitanti":
comuni = comuni.OrderBy(s => s.Abitanti);
break;
default:
comuni = comuni.OrderBy(s => s.Comune);
break;
}
int pageSize = 7;
return View(await PaginatedList<Listacomuniitaliani>.CreateAsync(comuni.AsNoTracking(), page ?? 1, pageSize));
}
@model PaginatedList<MyProject.Models.Listacomuniitaliani>
@{
ViewData["Title"] = "Index";
}
<h2>Index</h2>
<p>
<a asp-action="Create">Create New</a>
</p>
<form asp-action="Index" method="get">
<div class="form-actions no-color">
<p>
Cerca un comune: <input type="text" name="searchStringComune" value="@ViewData["CurrentFilterComune"]" />
<input type="submit" value="trova" class="btn btn-default" />
</p>
</div>
</form>
<form asp-action="Index" method="get">
<div class="form-actions no-color">
<p>
Seleziona una provincia: <input type="text" name="searchStringProvincia" value="@ViewData["CurrentFilterProvincia"]" />
<input type="submit" value="trova" class="btn btn-default" />
</p>
</div>
</form>
<form asp-action="Index" method="get">
<div class="form-actions no-color">
<p>
Seleziona una regione: <input type="text" name="searchStringRegione" value="@ViewData["CurrentFilterRegione"]" />
<input type="submit" value="trova" class="btn btn-default" />
</p>
</div>
</form>
<form asp-action="Index" method="get">
<div class="form-actions no-color">
<p>
<a asp-action="Index">Torna indietro alla lista</a>
</p>
</div>
</form>
<table class="table">
<thead>
<tr>
<th>
Istat
</th>
<th>
<a asp-action="Index" asp-route-sortOrder="@ViewData["ComuneSortParm"]">Comune</a>
</th>
<th>
<a asp-action="Index" asp-route-sortOrder="@ViewData["ProvinciaSortParm"]"
asp-route-currentFilter="@ViewData["CurrentFilterProvincia"]">Provincia</a>
</th>
<th>
<a asp-action="Index" asp-route-sortOrder="@ViewData["RegioneSortParm"]"
asp-route-currentFilter="@ViewData["CurrentFilterRegione"]">Regione</a>
</th>
<th>
Prefisso
</th>
<th>
<a asp-action="Index" asp-route-sortOrder="@ViewData["PostalCodeSortParm"]">CAP</a>
</th>
<th>
CodFisco
</th>
<th>
<a asp-action="Index" asp-route-sortOrder="@ViewData["AbitantsSortParm"]">Abitanti</a>
</th>
<th>
Link
</th>
<th></th>
</tr>
</thead>
<tbody>
@foreach (var item in Model) {
<tr>
<td>
@Html.DisplayFor(modelItem => item.Istat)
</td>
<td>
@Html.DisplayFor(modelItem => item.Comune)
</td>
<td>
@Html.DisplayFor(modelItem => item.Provincia)
</td>
<td>
@Html.DisplayFor(modelItem => item.Regione)
</td>
<td>
@Html.DisplayFor(modelItem => item.Prefisso)
</td>
<td>
@Html.DisplayFor(modelItem => item.Cap)
</td>
<td>
@Html.DisplayFor(modelItem => item.CodFisco)
</td>
<td>
@Html.DisplayFor(modelItem => item.Abitanti)
</td>
<td>
@Html.DisplayFor(modelItem => item.Link)
</td>
<td>
<a asp-action="Edit" asp-route-id="@item.Id">Edit</a> |
<a asp-action="Details" asp-route-id="@item.Id">Details</a> |
<a asp-action="Delete" asp-route-id="@item.Id">Delete</a>
</td>
</tr>
}
</tbody>
</table>
@{
var prevDisabled = !Model.HasPreviousPage ? "disabled" : "";
var nextDisabled = !Model.HasNextPage ? "disabled" : "";
}
<a asp-action="Index"
asp-route-sortOrder="@ViewData["CurrentSort"]"
asp-route-page="@(Model.PageIndex - 1)"
asp-route-currentFilter=@if (@ViewData["CurrentFilterRegione"] != null)
{
@ViewData["CurrentFilterRegione"]
} else
{
@ViewData["CurrentFilterProvincia"]
}
class="btn btn-default @prevDisabled">
Previous
</a>
<a asp-action="Index"
asp-route-sortOrder="@ViewData["CurrentSort"]"
asp-route-page="@(Model.PageIndex + 1)"
asp-route-currentFilter=@if (@ViewData["CurrentFilterRegione"] != null)
{
@ViewData["CurrentFilterRegione"]
} else
{
@ViewData["CurrentFilterProvincia"]
}
class="btn btn-default @nextDisabled">
Next
</a>