c# - 服务器上的 C# HTML.Actionlink 奇怪行为
问题描述
如果有人可以提供帮助，我将非常感激。
我在 VS 2017 中将 C# 用于 ASP.net 应用程序。
在剃刀视图中，我有以下代码：
<div class="text-center" >
<ul class="pagination">
@for (var i = 1; i <= ViewBag.SearchMetaData.SearchNumberOfPages; i++)
{
if (ViewBag.SearchMetaData.SearchCurrentPage == @i)
{
<li class="active"> @Html.ActionLink(@i.ToString(), "CI_SequenceBlocks_Pager_Form_Handler", new { id = @i, value = ViewBag.SearchMetaData.SearchString, inInstitutionProgramID = ViewData["SelectedInstitutionProgram"].ToString() },null)</li>
}
else
{
<li> @Html.ActionLink(@i.ToString(), "CI_SequenceBlocks_Pager_Form_Handler", "Home", new { id = @i, value = ViewBag.SearchMetaData.SearchString, inInstitutionProgramID = ViewData["SelectedInstitutionProgram"].ToString() },null)</li>
}
}
</ul>
</div>
}
它在我的开发机器上运行良好。动作链接永远不会失败。
但是，当我发布到服务器时，我可以单击链接 3 或 4 次，它们就可以工作。第四次之后，就像变量被遗忘了。当我查看页面源时，链接似乎正确。在我看来，服务器上的某些东西正在被重置。有没有人有任何想法？
这是更多代码：____________在此行之后编辑________控制器：
public ActionResult CI_SequenceBlocks()
{
string strIP = "";
string strSRCHString = "";
string strSRCHstringQry = "";
int intSRCHRequestedPage = 1;
int intSRCHPageSize = 10;
if (TempData["CI_SequenceBlocks_InstitutionProgram"] == null)
{
strIP = "0";
strSRCHString = "";
}
else
{
strIP = TempData["CI_SequenceBlocks_InstitutionProgram"].ToString();
strSRCHString = TempData["CI_SequenceBlocks_SRCHString"]?.ToString() ?? "";
};
ViewData["listInstitutionPrograms"] = new SelectList(MSSQL_CI_Repository.ListInstitutionProgramsForComboBoxes(), "Value", "Text");
ViewData["SelectedInstitutionProgram"] = strIP;
ViewData["inSRCHString"] = strSRCHString;
ViewBag.SRCHString = strSRCHString;
//ViewBag.InstitutionalProgram = strIP;
if (strSRCHString == "") { ViewBag.SRCHDescriptor = "NO_SEARCH_TERM"; } else { ViewBag.SRCHDescriptor = strSRCHString?.ToString() ?? "NO_SEARCH_TERM"; }
if (strSRCHString.Trim() == "")
{
strSRCHstringQry = "rttyghujmgdddh";
}
else
{
strSRCHstringQry = strSRCHString;
}
if(TempData["CI_SequenceBlocks_RequestedPage"] != null)
{
intSRCHRequestedPage = Convert.ToInt32(TempData["CI_SequenceBlocks_RequestedPage"]);
}
vm_CI_SequenceBlocksWithSearchMetaData obj = MSSQL_CI_Repository.ListCI_SequenceBlocksByInstitutionalProgramForFullTextSearch(Convert.ToInt32(strIP), strSRCHstringQry,intSRCHPageSize,intSRCHRequestedPage);
ViewBag.SearchMetaData = obj.SearchMetaData;
var model = obj.lstSequenceBlocks;
return View(model);
}
[HttpPost]
public ActionResult CI_SequenceBlocks_FullTextSearch(FormCollection form)
{
TempData["CI_SequenceBlocks_InstitutionProgram"] = form["HidInstitutionProgram"].ToString();
TempData["CI_SequenceBlocks_SRCHString"] = form["SRCHString"].ToString();
TempData["CI_SequenceBlocks_RequestedPage"] = 1;
return RedirectToActionPermanent("CI_SequenceBlocks");
}
public ActionResult CI_SequenceBlocks_Edit_Form_Handler(int id, string value, int inInstitutionProgramID)
{
TempData["CI_SequenceBlocks_InstitutionProgramID"] = inInstitutionProgramID;
TempData["CI_SequenceBlocks_SequenceBlockID"] = id;
if (value == "Edit_SequenceBlock_ID")
{
return RedirectToAction("CI_SequenceBlock_Edit");
}
else if (value == "Maintain_SequenceBlock_ID")
{
return RedirectToAction("CI_SequenceBlock_Maintain");
}
else
{
TempData["CI_SequenceBlocks_InstitutionProgram"] = inInstitutionProgramID;
return RedirectToAction("CI_SequenceBlocks");
}
}
public ActionResult CI_SequenceBlocks_Pager_Form_Handler(int id, string value, int inInstitutionProgramID)
{
TempData["CI_SequenceBlocks_InstitutionProgram"] = inInstitutionProgramID;
TempData["CI_SequenceBlocks_SRCHString"] = value;
TempData["CI_SequenceBlocks_RequestedPage"] = id;
return RedirectToActionPermanent("CI_SequenceBlocks");
}
[HttpPost]
public ActionResult CI_SequenceBlocks_ProgramChange(FormCollection form)
{
TempData["CI_SequenceBlocks_InstitutionProgram"] = form["SelectedInstitutionProgram"].ToString();
return RedirectToActionPermanent("CI_SequenceBlocks");
}
路由配置.cs
public class RouteConfig
{
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}/{id2}/{id3}",
defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional, id2 = UrlParameter.Optional, id3 = UrlParameter.Optional }
);
}
完整的剃刀代码：
@model IEnumerable<UTCI_Manager.Models.vm_CI_SequenceBlock>
@{
ViewBag.Title = "CI_SequenceBlocks";
}
<h2>CI_SequenceBlocks</h2>
@using (Html.BeginForm("CI_SequenceBlocks_ProgramChange", "Home", FormMethod.Post, new { id = "submitForm" }))
{
@Html.DisplayNameFor(model => model.InstitutionProgramID)
@Html.DropDownList("SelectedInstitutionProgram", (SelectList)ViewData["listInstitutionPrograms"], new { onchange = "this.form.submit();" })
}
@using (Html.BeginForm("CI_Sequenceblocks_FullTextSearch", "Home", FormMethod.Post, new { id = "submitForm" }))
{
if (ViewData["SelectedInstitutionProgram"].ToString() != "0")
{
<div class="input-group">
@Html.Hidden("HidInstitutionProgram", ViewData["SelectedInstitutionProgram"]?.ToString() ?? "0")
@Html.TextBox("SRCHString", ViewData["inSRCHString"].ToString(), new { @class = "form-control", @placeholder = "Search" })
<span class="input-group-btn">
<button class="btn btn-info" type='submit' value="Search">Search</button>
</span>
</div>
}
}
<table class="table table-striped" summary="List of Sequence Blocks">
<tr>
@* <th>
@Html.DisplayNameFor(model => model.SequenceBlockID)
</th>
<th>
@Html.DisplayNameFor(model => model.InstitutionProgramID)
</th>
*@
<th>
@Html.DisplayNameFor(model => model.Title)
</th>
<th>
@Html.DisplayNameFor(model => model.SequenceBlockDescription)
</th>
<th>
@Html.DisplayNameFor(model => model.SequenceBlockRequired)
</th>
@* <th>
@Html.DisplayNameFor(model => model.Minimum)
</th>
<th>
@Html.DisplayNameFor(model => model.Maximum)
</th>
*@
<th>
@Html.DisplayNameFor(model => model.SequenceBlockTimingMethod)
</th>
<th>
@Html.DisplayNameFor(model => model.Duration)
</th>
<th>
@Html.DisplayNameFor(model => model.StartDate)
</th>
<th>
@Html.DisplayNameFor(model => model.EndDate)
</th>
<th>
@Html.DisplayNameFor(model => model.ClerkshipModel)
</th>
<th>
@using (Html.BeginForm("CI_SequenceBlocks_AddSequenceBlock", "Home", FormMethod.Post, new { id = "submitForm" }))
{
if (ViewData["SelectedInstitutionProgram"].ToString() != "0")
{
@Html.Hidden("HidInstitutionalProgram", ViewData["SelectedInstitutionProgram"].ToString())
<input type="submit" value="Add Sequence Block" class="btn btn-sm" />
}
}
</th>
</tr>
@foreach (var item in Model)
{
<tr>
@Html.HiddenFor(modelItem => item.SequenceBlockID)
@Html.HiddenFor(modelItem => item.InstitutionProgramID)
@Html.HiddenFor(modelItem => item.Minimum)
@Html.HiddenFor(modelItem => item.Maximum)
<td>
@Html.DisplayFor(modelItem => item.Title)
</td>
<td>
@Html.DisplayFor(modelItem => item.SequenceBlockDescription)
</td>
<td>
@Html.DisplayFor(modelItem => item.SequenceBlockRequired)
</td>
<td>
@Html.DisplayFor(modelItem => item.SequenceBlockTimingMethod)
</td>
<td>
@Html.DisplayFor(modelItem => item.Duration)
</td>
<td>
@Html.DisplayFor(modelItem => item.StartDate)
</td>
<td>
@Html.DisplayFor(modelItem => item.EndDate)
</td>
<td>
@Html.DisplayFor(modelItem => item.ClerkshipModel)
</td>
<td>
@Html.ActionLink("Edit", "CI_SequenceBlocks_Edit_Form_Handler", new { id = item.SequenceBlockID, value = "Edit_SequenceBlock_ID", inInstitutionProgramID = item.InstitutionProgramID }) |
@Html.ActionLink("Maintain", "CI_SequenceBlocks_Edit_Form_Handler", new { id = item.SequenceBlockID, value = "Maintain_SequenceBlock_ID", inInstitutionProgramID = item.InstitutionProgramID })
</td>
</tr>
}
</table>
@if (ViewData["SelectedInstitutionProgram"].ToString() != "0")
{
<div class="text-center" >
<ul class="pagination">
@for (var i = 1; i <= ViewBag.SearchMetaData.SearchNumberOfPages; i++)
{
if (ViewBag.SearchMetaData.SearchCurrentPage == @i)
{
<li class="active"> @Html.ActionLink(@i.ToString(), "CI_SequenceBlocks_Pager_Form_Handler", new { id = @i, value = ViewBag.SearchMetaData.SearchString, inInstitutionProgramID = ViewData["SelectedInstitutionProgram"].ToString() },null)</li>
}
else
{
<li> @Html.ActionLink(@i.ToString(), "CI_SequenceBlocks_Pager_Form_Handler", "Home", new { id = @i, value = ViewBag.SearchMetaData.SearchString, inInstitutionProgramID = ViewData["SelectedInstitutionProgram"].ToString() },null)</li>
}
}
</ul>
</div>
}
@using (Html.BeginForm("CI_SequenceBlocks_AddSequenceBlock", "Home", FormMethod.Post, new { id = "submitForm" }))
{
if (ViewData["SelectedInstitutionProgram"].ToString() != "0")
{
<table class="table">
<tr>
<td>
@Html.Hidden("HidInstitutionProgram", ViewData["SelectedInstitutionProgram"].ToString())
</td>
</tr>
<tr>
<td>Add Sequence Block:</td>
<td> <input type="submit" value="Add Sequence Block" class="btn btn-sm" /> </td>
</tr>
</table>
}
}
____________新更新____________
发现问题：
我将 RedirectToActionPermanent 更改为 RedirectToAction。没有更多的问题！
谢谢，
詹姆士
解决方案
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