我有一个计算页码的Index方法。因此，如果用户选择页码上的行（例如页码3）并编辑该项目，并返回索引页面 - 仍然在编号3上选择页码，这很好。但是仍应在“索引”页面中选择该行。我这样想：
控制器：
object selection = ModelHelper.GetSelectedModelId("SubmittedForms");
if (selection != null) {
IEnumerable<IEnumerable<SubmittedForm>> pp = entities.Partition(pageSize);
int calculatedPage = 0;
bool found = false;
foreach (var item in pp) {
calculatedPage++;
IEnumerable<SubmittedForm> inner = item as IEnumerable<SubmittedForm>;
foreach (var submittedForms in inner) {
if (submittedForms.Id == (int)selection) {
found = true;
ViewBag.selectedRow = submittedForms.Id == (int)(ModelHelper.GetSelectedModelId("SubmittedForms") ?? 0) ? "sfs-selected sfs-selectable" : String.Empty;
break;
}
}
if (found)
break;
}
if (found)
pageNumber = calculatedPage;
//SubmittedForm submittedForm;
}
使用Javascript：
var $row = $("tr.sfs-selected").each(function () {
selectRow($(this), $(this).hasClass("sfs-selected"));
});
})
并查看：
@foreach (var item in Model) {
<tr class="(@ViewBag.selectedRow)">
<td>
@Html.DisplayFor(modelItem => item.Id)
</td>
<td>
@if (item.ProductId != null) {
@item.Product.Name
if (item.Product.IsProduction == false) {
<em>(@Resources.Entity.Environment.Test)</em>
}
if (testMode != item.Product.IsProduction) {
<a href="@Url.Action("Details", "Product", new { id = item.ProductId })"><i class="fa fa-fw fa-external-link-square text-info"></i></a>
}
}
但是在返回索引页面后没有选择该行。
谢谢
完整的索引方法：
[Route("sort/{SortColumn}/{SortOrder?}", Name = "Sort-SubmittedForms")]
[Route("page/{Page:int}/{SortColumn}/{SortOrder?}", Name = "Paging-SubmittedForms")]
[Route("search/{SearchString}")]
[Route()]
public ActionResult Index(string searchString, string filter, string currentFilter, string sortColumn, string sortOrder, int? page, int? id)
{
IOrderedQueryable<SubmittedForm> entities = db.FilteredSubmittedForms;
if (searchString != null) page = 1; else searchString = currentFilter;
//if (page == null && Session["SubmittedFormpage"] != null)
// page = (int)Session["SubmittedFormpage"];
bool isHandler = ApplicationUserManager.IsProductHandler(this.User);
bool hideArchivedOrders = true;
if (filter != null) {
int productId = 0;
string stateFilter = null;
if (filter.StartsWith("o_")) { // Order state
if (isHandler)
filter = null;
else {
stateFilter = filter.Substring(2);
OrderState oState = db.OrderStates.FirstOrDefault(s => s.Code == stateFilter);
if (oState == null)
filter = null;
else {
entities = (IOrderedQueryable<SubmittedForm>)entities.Where(
s => s.Order.OrderState.Code == stateFilter
);
AddFixedNotification(String.Format(Resources.Entity.Environment.FitleredByOrderStateMessage, oState.Title));
hideArchivedOrders = false;
}
}
}
else if (filter.StartsWith("s_")) { // Submitted form state
stateFilter = filter.Substring(2);
SubmittedFormStateEnum sfState;
if (SubmittedFormState.TryCodeToId(stateFilter, out sfState)) {
entities = (IOrderedQueryable<SubmittedForm>)entities.Where(
s => s.SubmittedFormStateId == (int) sfState
&& s.Order.OrderState.Code == OrderState.CompletedCode
);
AddFixedNotification(String.Format(Resources.Entity.Environment.FilteredBySubmittedFormStateMessage, SubmittedFormState.IdToLocalizedName(sfState)));
}
else {
filter = null;
}
}
else if (int.TryParse(filter, out productId) && productId > 0) {
Product product = db.Products.Find(productId);
if (product == null) productId = 0;
else {
entities = (IOrderedQueryable<SubmittedForm>)entities.Where(
s => s.Product.Id == productId
);
AddFixedNotification(String.Format(Resources.Entity.Environment.FilteredByProductMessage, product.Name));
}
filter = productId.ToString();
}
else
filter = null;
}
if (isHandler) {
entities = FilterSubmittedFormsForProductHandler(entities);
}
else if (hideArchivedOrders) {
entities = (IOrderedQueryable<SubmittedForm>)entities.Where(
s => s.Order.OrderState.Code != OrderState.ArchivedCode
);
}
if (!String.IsNullOrEmpty(searchString)) {
entities = (IOrderedQueryable<SubmittedForm>)entities.Where(
s => s.Product.Name.ToUpper().Contains(searchString.ToUpper())
);
AddFixedNotification(String.Format(Resources.Entity.Environment.FilteredBySearchTermMessage, searchString));
}
switch (sortColumn) {
case "id":
entities = (sortOrder == "desc") ? entities.OrderByDescending(s => s.Id) : entities.OrderBy(s => s.Id);
break;
case "product":
entities = (sortOrder == "desc") ? entities.OrderByDescending(s => s.Product.Name) : entities.OrderBy(s => s.Product.Name);
break;
case "modified":
entities = (sortOrder == "desc") ? entities.OrderByDescending(s => s.ModificationDate) : entities.OrderBy(s => s.ModificationDate);
break;
case "attach":
entities = (sortOrder == "desc") ? entities.OrderByDescending(s => s.SubmittedFormAttachments.Count) : entities.OrderBy(s => s.SubmittedFormAttachments.Count);
break;
case "orderstate":
entities = (sortOrder == "desc") ? entities.OrderByDescending(s => s.Order.OrderStateId) : entities.OrderBy(s => s.Order.OrderStateId);
break;
default:
sortColumn = "id";
sortOrder = "desc";
entities = (sortOrder == "desc") ? entities.OrderByDescending(s => s.Id) : entities.OrderBy(s => s.Id);
break;
}
ViewBag.SortColumn = sortColumn;
ViewBag.SortOrder = sortOrder == "desc" ? "desc" : "";
ViewBag.SearchString = searchString;
ViewBag.Filter= filter;
//Session["SubmittedFormpage"] = page;
if (isHandler)
ViewBag.OrderStates = new Dictionary<string, string>();
else
ViewBag.OrderStates = db.OrderStates.ToDictionary(s => s.Code, s => s.Title);
bool production = !StateHelper.IsTestMode();
ViewBag.ProductsInUse = db.Products.Where(p => p.SubmittedForms.Where(f => f.Order.IsProduction == production).Count() != 0)
.OrderBy(p => p.Name)
.ToDictionary(p => p.Id.ToString(), p => p.Name + " (" + p.SubmittedForms.Where(f => f.Order.IsProduction == production).Count() + ")");
int pageSize = StateHelper.GetPageSize();
int pageNumber = StateHelper.HasPageSizeChanged ? 1 : (page ?? 1);
object selection = ModelHelper.GetSelectedModelId("SubmittedForms");
if (selection != null) {
IEnumerable<IEnumerable<SubmittedForm>> pp = entities.Partition(pageSize);
int calculatedPage = 0;
bool found = false;
foreach (var item in pp) {
calculatedPage++;
IEnumerable<SubmittedForm> inner = item as IEnumerable<SubmittedForm>;
foreach (var submittedForms in inner) {
if (submittedForms.Id == (int)selection) {
found = true;
ViewBag.selectedRow = submittedForms.Id == (int)(ModelHelper.GetSelectedModelId("SubmittedForms") ?? 0) ? "sfs-selected sfs-selectable" : String.Empty;
break;
}
}
if (found)
break;
}
if (found)
pageNumber = calculatedPage;
//SubmittedForm submittedForm;
}
//ModelHelper.GetSelectedModelId("SubmittedForms");
//SubmittedForm submittedform = db.SubmittedForms.Find(id);
return View(entities.ToPagedList(pageNumber, pageSize));
}
这是两个辅助方法：
public static object GetSelectedModelId(string ControllerName)
{
//var routeValues = HttpContext.Current.Request.RequestContext.RouteData.Values;
string controller = (string)HttpContext.Current.Session["controller"];
object mid = null;
if (controller != null && controller.Equals(ControllerName, StringComparison.OrdinalIgnoreCase))
mid = HttpContext.Current.Session["SelectedModelId"];
HttpContext.Current.Session.Remove("SelectedModelId");
HttpContext.Current.Session.Remove("controller");
return mid;
}
public static void SetSelectedModelId(string ControllerName, object ModelId)
{
HttpContext.Current.Session["controller"] = ControllerName;
HttpContext.Current.Session["SelectedModelId"] = ModelId;
}
答案 0 :(得分：0)
下面的课程将包括括号，这是否打算，因为你的javascript不包含它？
getUserById(userId:Long):Option[User]