Asp.Net MVC Controller / Ressource Manager: globalization issue - asp.net-mvc

I experience some problems concerning globalization in asp.net.
Parts of the page are randomly in english instead of german.
See this code:
[HttpPost]
public async Task<JsonResult> InterestingControllerMethod(Guid offeringRateId, Guid trainerId, DateTime? selectedDate)
{
//de-DE
Thread.CurrentThread.CurrentUICulture = new CultureInfo(SlConst.DefaultCulture);
var dateAndUtcTime = GetSelectedDateTime(selectedDate);
var selectTimesTrainer = await QueryProcessor.ExecuteAsyncWithCache(new OfferingRateCourseSelectableTimesForTrainerQuery
{
BasketId = BasketId,
OfferingRateId = offeringRateId,
FirstBookableDateTime = dateAndUtcTime,
LastBookableDateTime = dateAndUtcTime.GetEndOfDay(),
CurrentDateTime = SlDateTime.CurrentDateTimeUtc(SlConst.DefaultTimeZoneTzdb),
ForTrainerId = trainerId,
CustomerId = CurrentUserId
}).ConfigureAwait(false);
// this method actually uses ResourceManager
var result = GetSelectTimesCourseForTrainer(selectTimesTrainer);
return Json(result);
}
But in the end I always got a mixed gui.
In debug mode it seems that the culture de-DE has not been assigned at all:
Any ideas?
Thx!

Related

MvcSiteMapProvider bug with pagination

It's continue ASP.NET MVC incorect generation url when using pagination, but there I found how fix it. How fix that when using #Html.MvcSiteMap().SiteMapPath() I can't understand.
Problem in that when in actions ShowForum or ShowTopic and when I using pagination some forum or topic. In #Html.MvcSiteMap().SiteMapPath() I get url at parent page with number of page
UPDATE
For route configuration I'm using route attribute
[HttpGet]
[Route("{forumName}", Name = "showForum", Order = 6)]
[Route("{forumName}/Page/{page}", Order = 5)]
[OutputCache(Duration = 30, VaryByParam = "forumName;page", Location = OutputCacheLocation.ServerAndClient)]
public async Task<ActionResult> ShowForum(string forumName, int page = 1)
[HttpGet]
[RefreshDetectFilter]
[Block(VisibleBlock = false)]
[Route("{forum}/{topicName}", Name = "showTopic", Order = 8)]
[Route("{forum}/{topicName}/Page/{page}", Order = 7)]
[OutputCache(Duration = 30, VaryByParam = "topicName;page", Location = OutputCacheLocation.ServerAndClient)]
public async Task<ActionResult> ShowTopic(string forum, string topicName, int page = 1)
My ForumDynamicNodeProvider
public override IEnumerable<DynamicNode> GetDynamicNodeCollection(ISiteMapNode node)
{
var rootTitle = ManagerLocalization.Get("Forums", "FORUMS");
var pageParameter = new List<string> { "page" };
var url = "~/Forums";
var attr = new Dictionary<string, object> { { "Controller", "Forums" } };
var nodes = new List<DynamicNode>
{
new DynamicNode
{
Key = "forum_home",
Title = rootTitle,
Url = url,
Attributes = attr
}
};
var forums = this._forumsService.GetAllForumsForMap();
var topics = this._forumsService.GetAllTopicsForMap();
foreach (var forum in forums)
{
var forumRouteValue = new Dictionary<string, object> { { "forumName", forum.NameTranslit } };
nodes.Add(new DynamicNode
{
ParentKey = forum.ForumId != -1 ? $"forum_{forum.ForumId}" : "forum_home",
Key = $"forum_{forum.Id}",
Title = forum.Name,
PreservedRouteParameters = pageParameter,
Controller = "Forums",
Action = "ShowForum",
RouteValues = forumRouteValue,
});
var forumTopics = topics.Where(item => item.ForumId == forum.Id);
foreach (var topic in forumTopics)
{
var topicRouteValue = new Dictionary<string, object> { { "forum", forum.NameTranslit }, { "topicName", topic.TitleTranslite } };
nodes.Add(new DynamicNode
{
ParentKey = $"forum_{forum.Id}",
Key = $"topic_{topic.Id}",
Title = topic.Title,
PreservedRouteParameters = pageParameter,
Controller = "Forums",
Action = "ShowTopic",
RouteValues = topicRouteValue,
});
}
}
return nodes;
}
The problem is that you are using the same route key name {page} in two different places in the same node ancestry in combination with PreservedRouteParameters. PreservedRouteParameters gets its data from the current request. So, it is important that a route key have the same meaning in each request in the same node ancestry. For it to work correctly with PreservedRouteParamters, you need to do three things:
Use a different route key for each separate page parameter (for example, {forumPage} and {page}).
Ensure the ancestor page parameter is passed to the request of its descendants, so when building the URL to an ancestor node the value is in the current request. The simplest way is to build the URL with the page information of all ancestors ({forumName}/Page/{forumPage}/{topicName}/Page/{page}).
Any route keys that have the same meaning between nodes should stay the same ({forumName} in both routes).
Then you need to add the parameters when building the URL of the child node. You must build the URL manually within your application because the request will not have all of the parameters unless you do.
#Html.ActionLink("TheTopicName", "ShowTopic", "Forums",
new { forumName = 1, forumPage = 2, topicName = "foo", page = 1 }, null)
The reason you must supply all of the data in the child node request is because the ancestor node needs it to build its URL. It pulls this information from the request, so it must be present in the request for it to function. MvcSiteMapProvider has no way of knowing what the current page number of the ancestor node is unless it is provided in the request by a URL that is built outside of your menu.
See the MvcSiteMapProvider-Forcing-A-Match-2-Levels project in the code download for How to Make MvcSiteMapProvider Remember a User's Position for a similar configuration and the solution. In that case, it is using productId instead of forumPage as the parameter that is preserved on the descendant nodes so you can navigate back to the parent product.
Note that you could use a similar configuration (with PreservedRouteParameters and SiteMapTitleAttribute) for your entire forum rather than using a dynamic node provider. However, in that case I would suggest you disable the /sitemap.xml endpoint and roll your own.
I found how this fix, thank you to NightOwl888. I'm not the first time understood what should to do.
First I removed initialization PreservedRouteParameters in ForumDynamicNodeProvider
Second I added in action
if (forumPage > 1)
{
var node = SiteMaps.Current.FindSiteMapNodeFromKey(forumName);
if (node != null)
{
node.RouteValues["forumPage"] = forumPage;
}
}
Also I need change generation tree in ForumDynamicNodeProvider because SiteMaps.Current doesn't work in async

View not updating after post with ASP.Net MVC

I'm trying to build a very simple website to display some test data being added & updated using asp.net mvc (with razor) but whenever data is posted to my Post method, my data is not being updated. I'm trying to get a unordered list (for now) to be updated the second a post is triggered.
I'm posting my data as JSON using the following code:
string jsonDeviceData = SerializeHelper.Serialize<IDeviceData>(deviceData,
ContentTypeEnum.Json, false);
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(localServerUrl);
webRequest.Method = "POST";
webRequest.ContentType = "application/json"; //"application/x-www-form-urlencoded";
byte[] deviceDataBuffer = Encoding.UTF8.GetBytes(jsonDeviceData);
Task<Stream> requestTask = webRequest.GetRequestStreamAsync();
using (Stream requestStream = requestTask.Result)
{
requestStream.Write(deviceDataBuffer, 0, deviceDataBuffer.Length);
}
Task<WebResponse> responseTask = webRequest.GetResponseAsync();
using (StreamReader requestReader = new StreamReader(responseTask.Result
.GetResponseStream()))
{
string webResponse = requestReader.ReadToEnd();
Debug.WriteLine("Web Response: " + webResponse);
}
Below is the code I'm using in the POST method. Don't worry about the logic being so simplistic and probably horrible, but I'm just dabbling with this idea. Data will be stored in SQL Server database and I'll use EF if I decide to go further with this:
[HttpPost()]
public ActionResult Index(DeviceModel model)
{
if (ModelState.IsValid && model != null)
{
var deviceViewModelList = HttpContext.Application["DeviceList"]
as List<DeviceViewModel> ?? new List<DeviceViewModel>();
if (deviceViewModelList.All(m => !string.Equals(m.Name,
model.Name,
StringComparison.InvariantCultureIgnoreCase)))
{
deviceViewModelList.Add(new DeviceViewModel(model));
}
HttpContext.Application["DeviceList"] = deviceViewModelList;
var homePageViewModel = new HomePageViewModel
{
DeviceList = deviceViewModelList
};
return RedirectToAction("Index");
}
else
{
return View();
}
}
My model is passed correctly and everything works ok when the data is posted my page is not updated, even after calling RedirectToAction("Index");
The code below gets called the first time the page is loaded and after calling the RedirectToActio("Index"):
public ActionResult Index()
{
ViewBag.Title = "Test Server";
var deviceViewModelList = HttpContext.Application["DeviceList"]
as List<DeviceViewModel> ?? new List<DeviceViewModel>();
var homePageViewModel = new HomePageViewModel
{
DeviceList = deviceViewModelList
};
return View(homePageViewModel);
}
This is the code I have in my .cshtml page:
<ul>
#if (Model?.DeviceList != null)
{
foreach (var device in Model.DeviceList)
{
<li>#device.Name</li>
}
}
</ul>
If I check Fiddler, the data, in this case, the list is build correctly.
If I press F5 my data is displayed correctly.
I've read so many articles at this stage and I still haven't got a solution, one of them being View not updated after post and while I've tried ModelState.Clear(); and as you can see from my code I'm using #device.Name which is one of the suggestion. I'm not sure about the last one.
Another article I read was ASP NET MVC Post Redirect Get Pattern but again to no avail.
I'm obviously missing something.
Most articles/samples I've been looking at refer to posting via a Form and I know I'm posting, but is that the same as posting via a Form?
Also my page's viewModel is for my page and it contains a list of devices. Is that OK rather than passing the list of device as the viewmodel to the page? The reason I'm doing this is that I will want to access other lists at a later stage.
Has anyone got any suggestions?
Much appreciated.

How do I use OData $filter results on the server

I have a working OData controller, which supports all the normal get/put etc.
What I want to do is pass a normal odata $filter string from the client, parse and execute the filter on the server and run some code on the resulting IEnumerable.
I've messed around with ODataQueryContext, ODataQueryOptions, FilterQueryOption etc, but not really got anywhere.
Does anyone have any working examples?
Edit: I've added my function skeleton, just need to fill in the blanks
public HttpResponseMessage GetJobs(string filter)
{
*** How to convert the filter into IQueryable<Job> ***
var queryable = ?????
var settings = new ODataQuerySettings();
var jobs = queryOptions.ApplyTo(querable, settings) as IQueryable<Job>;
CsvSerializer csvSerializer = new CsvSerializer();
string csv = csvSerializer.Serialise(jobs);
string fileName = string.Format("{0} Jobs.csv", filter);
return CreateCsvResponseMessage(csv, fileName);
}
I recently had a scenario where I needed this sort of feature as well. This is what I came up with.
private static IQueryable<T> ApplyODataFilter<T>(IQueryable<T> data, string filterString) where T : class
{
ODataConventionModelBuilder builder = new ODataConventionModelBuilder();
builder.EntitySet<T>(typeof(T).Name);
ODataQueryContext context = new ODataQueryContext(builder.GetEdmModel(), typeof(T), new ODataPath());
ODataQueryOptionParser queryOptionParser = new ODataQueryOptionParser(
context.Model,
context.ElementType,
context.NavigationSource,
new Dictionary<string, string> { { "$filter", filterString } });
FilterQueryOption filter = new FilterQueryOption(filterString, context, queryOptionParser);
IQueryable query2 = filter.ApplyTo(data, new ODataQuerySettings());
return query2.Cast<T>();
}
Try using OData code generator to generate client side code. you can following the following blog:
How to use OData Client Code Generator to generate client-side proxy class
The for the filter, the following is an example:
var q2 = TestClientContext.CreateQuery<Type>("Accounts").Where(acct => acct.Birthday > new DateTimeOffset(new DateTime(2013, 10, 1)));
There are some sample code in the codeplex to show how to do query.
Check this:
https://aspnet.codeplex.com/SourceControl/latest#Samples/WebApi/OData/v3/ODataQueryableSample/Program.cs
Update:
There is some sample code in the controller of the sample I gave you.
Write your code as below:
public IQueryable<Order> Get(ODataQueryOptions queryOptions)
{
if (queryOptions.Filter != null)
{
var settings = new ODataQuerySettings();
var filterResult = queryOptions.ApplyTo(OrderList.AsQueryable(), settings) as IQueryable<Order>;
// Use the filter result here.
}
}
Update 2:
You can get the raw string of the filter from ODataQueryOptions.
public IQueryable<Order> Get(ODataQueryOptions queryOptions)
{
string filterString = queryOptions.Filter.RawValue;
// Use the filterString
}
Update 3:
(Note: ODataProperties is an extension method in static class
System.Web.Http.OData.Extensions.HttpRequestMessageExtensions)
public HttpResponseMessage GetJobs(string filter)
{
var context = new ODataQueryContext(Request.ODataProperties().Model, typeof(Job));
var filterQueryOption = new FilterQueryOption(filter, context);
IQueryable<Job> queryable = GetAllJobs();
var settings = new ODataQuerySettings();
var jobs = filterQueryOption.ApplyTo(queryable, settings) as IQueryable<Job>;
CsvSerializer csvSerializer = new CsvSerializer();
string csv = csvSerializer.Serialise(jobs);
string fileName = string.Format("{0} Jobs.csv", filter);
return CreateCsvResponseMessage(csv, fileName);
}

Calling RazorEngine.Parse() in Controller Action fails with bad HttpContextBase

Perhaps I'm not calling RazorEngine in the correct place.
In my controller action I use the following code to call RazorEngine. But I think this may not be correct as when it calls through to .Execute() and then into MVC's GetActionCache() the HttpContextBase.Items fails with a "method not implemented" exception.
Am I calling RazorEngine in the wrong way? #Html.LabelFor() works fine.
string template = "#Html.EditorFor(model => model.OldPassword)";
string result = string.Empty;
var config = new RazorEngine.Configuration.TemplateServiceConfiguration
{
BaseTemplateType = typeof(System.Web.Mvc.Helpers.HtmlTemplateBase<>)
};
using (var service = new RazorEngine.Templating.TemplateService(config))
{
// Use template service.
RazorEngine.Razor.SetTemplateService(service);
result = RazorEngine.Razor.Parse(template, model);
}
powercat97 over on the github issues page has a workaround for an issue that addresses this.
https://github.com/Antaris/RazorEngine/issues/46
The reason I've had much trouble is that there is no context set. Creating a new ViewContext is not sufficient.
Therefore by calling a view that in turn calls our RazorEngine code via RenderAction() we get the context and the MVC framework has everything it needs when it is called by RazorEngine.
Using the AccountController as an example (HtmlTemplateBase comes from RazorEngine issues with #Html and http://www.haiders.net/post/HtmlTemplateBase.aspx):
public ActionResult Test()
{
var model = new MySite.Models.LocalPasswordModel();
model.OldPassword = "MyOldPwd";
model.NewPassword = "SomeNewPwd";
return PartialView(model);
}
[ChildActionOnly()]
public string TestTemplate(MySite.Models.LocalPasswordModel vm)
{
string result = string.Empty;
string template = "#Html.EditorFor(model => model.OldPassword)";
var config = new RazorEngine.Configuration.TemplateServiceConfiguration
{
BaseTemplateType = typeof(HtmlTemplateBase<>)
};
using (var service = new RazorEngine.Templating.TemplateService(config))
{
// Use template service.
RazorEngine.Razor.SetTemplateService(service);
result = RazorEngine.Razor.Parse(template, vm, "MyTemplateName");
}
return result;
}
and in Test.cshtml:
#model TestRazorEngine.Models.LocalPasswordModel
#{ Html.RenderAction("TestTemplate", new { vm = Model }); }

A localized scriptbundle solution

Hi I am currently using the asp.net MVC 4 rc with System.Web.Optimization. Since my site needs to be localized according to the user preference I am working with the jquery.globalize plugin.
I would very much want to subclass the ScriptBundle class and determine what files to bundle according to the System.Threading.Thread.CurrentThread.CurrentUICulture. That would look like this:
bundles.Add(new LocalizedScriptBundle("~/bundles/jqueryglobal")
.Include("~/Scripts/jquery.globalize/globalize.js")
.Include("~/Scripts/jquery.globalize/cultures/globalize.culture.{0}.js",
() => new object[] { Thread.CurrentThread.CurrentUICulture })
));
For example if the ui culture is "en-GB" I would like the following files to be picked up (minified of course and if possible cached aswell until a script file or the currentui culture changes).
"~/Scripts/jquery.globalize/globalize.js"
"~/Scripts/jquery.globalize/globalize-en-GB.js" <-- if this file does not exist on the sever file system so fallback to globalize-en.js.
I tried overloading the Include method with something like the following but this wont work because it is not evaluated on request but on startup of the application.
public class LocalizedScriptBundle : ScriptBundle
{
public LocalizedScriptBundle(string virtualPath)
: base(virtualPath) {
}
public Bundle Include(string virtualPathMask, Func<object[]> getargs) {
string virtualPath = string.Format(virtualPathMask, getargs());
this.Include(virtualPath);
return this;
}
}
Thanks
Constantinos
That is correct, bundles should only be configured pre app start. Otherwise in a multi server scenario, if the request for the bundle is routed to a different server other than the one that served the page, the request for the bundle resource would not be found.
Does that make sense? Basically all of your bundles need to be configured and defined in advance, and not dynamically registered on a per request basis.
take a look: https://stackoverflow.com/questions/18509506/search-and-replace-in-javascript-before-bundling
I coded this way for my needs:
public class MultiLanguageBundler : IBundleTransform
{
public void Process(BundleContext context, BundleResponse bundle)
{
var content = new StringBuilder();
var uicult = Thread.CurrentThread.CurrentUICulture.ToString();
var localizedstrings = GetFileFullPath(uicult);
if (!File.Exists(localizedstrings))
{
localizedstrings = GetFileFullPath(string.Empty);
}
using (var fs = new FileStream(localizedstrings, FileMode.Open, FileAccess.Read))
{
var m_streamReader = new StreamReader(fs);
var str = m_streamReader.ReadToEnd();
content.Append(str);
content.AppendLine();
}
foreach (var file in bundle.Files)
{
var f = file.VirtualFile.Name ?? "";
if (!f.Contains("localizedstrings"))
{
using (var reader = new StreamReader(VirtualPathProvider.OpenFile(file.VirtualFile.VirtualPath)))
{
content.Append(reader.ReadToEnd());
content.AppendLine();
}
}
}
bundle.ContentType = "text/javascript";
bundle.Content = content.ToString();
}
private string GetFileFullPath(string uicult)
{
if (uicult.StartsWith("en"))
uicult = string.Empty;
else if (!string.IsNullOrEmpty(uicult))
uicult = ("." + uicult);
return Kit.ToAbsolutePath(string.Format("~/Scripts/locale/localizedstrings{0}.js", uicult));
}
}

Resources