[英]Unable to apply paging in mvc4 when using viewmodel and actionlink
嗨,我有一個鏈接按鈕。 當我點擊鏈接按鈕時,將顯示記錄數。 我想為此應用分頁。 我試過如下。
Index.cshtml
@foreach (var group in Model.records)
{
<tr>
<td>@Html.ActionLink(@group.clientId.ToString(), "detailsbyClientId", "DocumentVerification", new { clientId = @group.clientId.ToString()},null)</td>
<td>@group.clientName</td>
<td>@group.Count</td>
</tr>
}
這是我的控制器代碼。
public ActionResult detailsbyClientId(int? clientId, int currentFilter, int? page)
{
if (clientId != null)
{
page = 1;
}
else
{
clientId = currentFilter;
}
ViewBag.CurrentFilter = clientId;
int pageSize = 8;
int pageNumber = (page ?? 1);
documentVerificationBAL objBAL = new documentVerificationBAL();
int cId = Convert.ToInt32(clientId);
List<detailsbyClientId> detailsbyclient = objBAL.detailsbyclient(cId);
IPagedList<detailsbyClientId> pagedLog = detailsbyclient.ToPagedList(pageNumber, pageSize);
detailsbyclientIdviewModel model;
model = new detailsbyclientIdviewModel()
{
detailsbyclientId = pagedLog
};
return View("detailsbyClientId", model);
}
這是我的觀看代碼
@model PagedList.IPagedList<c3card.DAL.detailsbyclientIdviewModel>
@using PagedList.Mvc;
@if(!Model.detailsbyclientId.Any())
{
<div>
<table width="100%" border="0" cellspacing="0" cellpadding="0" class="dataTable tableHover">
<tr>
<th>Corporate Name</th>
<th>employee ID</th>
<th>employee Name</th>
<th>Nationality</th>
<th>Document Type</th>
<th>Actions</th>
</tr>
@foreach (var group in Model.detailsbyclientId)
{
<tr>
<td> @group.clientName </td>
<td> @group.employeeId </td>
<td> @group.employeeName </td>
<td> @group.documentType </td>
<td scope="col">
<input type="button" class="btn btn-primary btn-cons" value="View Document" onclick="showDocumentData('@group.upld_Id');" />
</td>
<td scope="col">
< input type="button" class="btn btn-primary btn-cons" value="Approve" onclick="showDocumentData('@group.upld_Id');" />
</td>
<td scope="col">
< input type="button" class="btn btn-primary btn-cons" value="Reject" onclick="showDocumentData('@group.upld_Id');" />
</td>
</tr>
}
</table>
@Html.PagedListPager(Model, page => Url.Action("detailsbyClientId",
new { page, currentFilter = ViewBag.CurrentFilter, pageSize = 5 }))
Page @(Model.PageCount < Model.PageNumber ? 0 : Model.PageNumber) of @Model.PageCount
</div>
}
我的viewmodel
public class detailsbyclientIdviewModel
{
public int upldId { get; set; }
public IEnumerable<detailsbyClientId> detailsbyclientId { get; set; }
public IEnumerable<Metadata> metadata { get; set; }
}
我發送clientid to detailsbyclientid action方法。 如何從actionlink發送clientid
作為currentfilter
? 我目前正在獲得可以為空的錯誤,因為我沒有發送當前的過濾器。 如果我在任何地方都錯了,請告訴我。 謝謝你
將currentFilter
的參數更改為int?
(可以為空),然后你可以測試它是否為null
。 也不是你鏈接可以只是
<td>@Html.ActionLink(group.clientId.ToString(), "detailsbyClientId", "DocumentVerification", new { clientId = group.clientId },null)</td>
但是,代碼中還有多個其他錯誤會引發異常。
首先,返回視圖的模型是detailsbyclientIdviewModel
,因此視圖中的模型必須匹配
@model yourAssembly.detailsbyclientIdviewModel
接下來,您將PagedList分配給屬性detailsbyclientId
因此您需要將模型更改為
public class detailsbyclientIdviewModel
{
....
public IPagedList<detailsbyClientId> detailsbyclientId { get; set; }
}
這樣它就可以被@Html.PagedListPager()
方法使用。
最后,您需要在尋呼機方法中引用該屬性
@Html.PagedListPager(Model.detailsbyclientId, page => Url.Action("detailsbyClientId",
new { page, currentFilter = ViewBag.CurrentFilter, pageSize = 5 }))
Page @(Model.detailsbyclientId.PageCount < Model.detailsbyclientId.PageNumber ? 0 : Model.PageNumber) of @Model.detailsbyclientId.PageCount
話雖如此,當你從不使用該模型的int upldId
或IEnumerable<Metadata> metadata
時,還不清楚為什么你將detailsbyclientIdviewModel
模型傳遞給視圖。 您可以將原始代碼保留在視圖和控制器中
IPagedList<detailsbyClientId> pagedLog = detailsbyclient.ToPagedList(pageNumber, pageSize);
return View("detailsbyClientId", pagedLog );
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