How can I get the last part of this url as string inside my .cshtml view?
http://localhost:10000/BusinessObject/Browse?Name=Game
The value I need is the Name -> so here it would be "Game".
Keys:
"{controller}/{action}/{id}/{name}"
To get Controllers or Actions and so on I use this:
Url.RequestContext.RouteData.Values["controller"].ToString();
Url.RequestContext.RouteData.Values["action"].ToString();
But can anybody tell me how I would do something similiar to get the Namevalue - "Game"?
Assuming your method in C# looks something like this:
public ActionResult Browse(string Name)
{
//Do whatever
return View()
}
If this is the case then you could drop the Name into the ViewBag:
public ActionResult Browse(string Name)
{
//Do whatever
ViewBag.Name = Name;
return View()
}
Then on the webpage:
<p>#ViewBag.Name<p/>
Related
I'm wondering how I should do this: I get the ID of an item by using the asp-route-id="#item.ID" method.
<a asp-controller="Outfit" asp-action="OutfitRatingOpslaan"
asp-route-id="#item.ID" class="btn btn-primary">Beoordelen</a>
This ID needs to be remembered for the view:
public IActionResult OutfitRatingOpslaan(item.ID)
{
Object obj = Container.GetObject(item.ID)
}
So the ID of that object, needs to be combined with the value i get after pressing on a submit button in the OutfitRatingOpslaan(Item.ID) view.
I have added a picture on how the view looks like and where the user can enter a value.
This new value + the ID of the object need to be combined and stored inside database.
So the end result should look something like this:
public IActionResult OutfitRatingSave()
{
Rating rating = ratingContainer.AddRating(item.ID, Value);
}
Does anyone have any ideas ? ;p
There are two methods can achieve it.
First method, You can use:
return RedirectToAction("action", "controller", new { id = item.ID});
Then in target action, Just use :
public IActionResult OutfitRatingSave(int id)
{
Rating rating = ratingContainer.AddRating(id, Value);
}
Second method, You can use TempData["xx"] to pass data between actions, refer to below code:
public IActionResult OutfitRatingOpslaan(item.ID)
{
TempData["id"] = item.ID
Object obj = Container.GetObject(item.ID)
}
public IActionResult OutfitRatingSave()
{
int id = (int)TempData["id"];
Rating rating = ratingContainer.AddRating(id, Value);
}
I have data coming into my form that looks like the image below (sessionsId: 1367,1368).
I've create c# in my webapi controller that works as below. when I've tried ot just make use SessionIds as the parameter (or sessionIds) by saying something like PostChargeForSessions(string SessionIds) either null gets passed in or I get a 404.
What is the proper way to catch a form parameter like in my request without declaring a structure.
(the code below works, but I'm not happy with it)
public class ChargeForSessionRec
{
public string SessionIds { get; set; }
}
[HttpPost]
[ActionName("ChargeForSessions")]
public HttpResponseMessage PostChargeForSessions(ChargeForSessionRec rec)
{
HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.OK, new ShirtSizeReturn()
{
Success = true,
//Data = shirtSizeRecs
});
return response;
}
You can declare the action method like this.
public HttpResponseMessage Post(string[] sessionIds) { }
If you don't want to define a class, the above code is the way to go. Having said that, the above code will not work with the request body you have. It must be like this.
=1381&=1380
Is there a way to tell what view a controller action is being called from?
For example, I would like to use "ControllerContext.HttpContext.Request.PhysicalPath" but it returns the path in which the controller action itself is located:
public ActionResult HandleCreateCustomer()
{
// Set up the customer
//..code here to setup the customer
//Check to see of the calling view is the BillingShipping view
if(ControllerContext.HttpContext.Request.PhysicalPath.Equals("~/Order/BillingShipping"))
{
//
return RedirectToAction("OrderReview", "Order", new { id = customerId });
}
else
{
return RedirectToAction("Index", "Home", new { id = customerId });
}
}
If you have a fixed number of locations that it could possibly be called from, you could create an enum where each of the values would correspond to a place where it could have been called from. You'd then just need to pass this enum value into HandleCreateCustomer, and do your condition statement(s) based on that.
At the moment I am using something of the sort:
In the View I am populating a TempData variable using:
#{TempData["ViewPath"] = #Html.ViewVirtualPath()}
The HtmlHelper method ViewVirtualPath() is found in the System.Web.Mvc.Html namespace (as usual) and is as follows and returns a string representing the View's virtual path:
public static string ViewVirtualPath(this HtmlHelper htmlHelper)
{
try{
return ((System.Web.WebPages.WebPageBase)(htmlHelper.ViewDataContainer)).VirtualPath;
}catch(Exception){
return "";
}
}
I will then obviously read the TempData variable in the controller.
I found another way.
In the controller you want to know what page it was called from.
I added the following in my controller
ViewBag.ReturnUrl = Request.UrlReferrer.AbsolutePath;
Then in the View I have a 'Back' button
#(Html.Kendo().Button().Name("ReturnButton")
.Content("Back to List").Events(e => e.Click("onReturn"))
.HtmlAttributes(new { type = "k-button" })
)
Then the javascript for the onReturn handler
function onReturn(e) {
var url = '#(ViewBag.ReturnUrl)';
window.location.href = url;
}
I would like to create a list with a string and an int value at the same time like follows:
#Html.ActionLink("Back to List", "IndexEvent", new { location = "location" })
and
#Html.ActionLink("Back to List", "IndexEvent", new { locationID = 1 })
It didn't work. I guess MVC controller didn't get the type difference of parameter. So, I had to make a new Action as "IndexEvenyByID" but it requires to have a new view. Since I wanted to keep it simple, is there any way to use same view with respect to different parameters?
Try adding two optional parameters to the IndexEvent action like this:
public ActionResult IndexEvent(string location = "", int? locationID = null)
This should not require a new view or view model. You should have two actions as you have described, but the code could be as follows:
Controller
public ActionResult GetEvents(string location){
var model = service.GetEventsByLocation(location);
return View("Events", model);
}
public ActionResult GetEventsById(int id){
var model = service.GetEventsById(id);
return View("Events", model);
}
Service
public MyViewModel GetEventsByLocation(string location){
//do stuff to populate a view model of type MyViewModel using a string
}
public MyViewModel GetEventsById(int id){
//do stuff to populate a view model of type MyViewModel using an id
}
Basically, if your View is going to use the same view model and the only thing that is changing is how you get that data, you can completely reuse the View.
If you really want to stick to a single action and multiple type, you could use a object parameter.
public ActionResult GetEvents(object location)
{
int locationID;
if(int.TryParse(location, out locationID))
var model = service.GetEventsByID(locationID);
else
var model = service.GetEventsByLocation(location as string);
return View("Events", model);
}
Something like that (Not completly right but it gives you an idea). This, however, wouldn't really be a "clean" way to do it IMO.
(Edit)
But the 2 actions method is still by far preferable (eg. What happens if we're able to parse a location name into a int?)
I have the following action method:-
[HttpPost]
public ActionResult Edit(int id, FormCollection collection)
{
Assessment a = elearningrepository.GetAssessment(id);
try
{
if (TryUpdateModel(a))
{
elearningrepository.Save();
return RedirectToAction("Details", new { id = a.AssessmentID });
}
}
//code does here
but I can not write something like if (TryUpdateModel(a, "Assessment", new string { "Date"})) to specify that I only allow the Date property to be updated.
So how I can add a bind list to the above if (TryUpdateModel(a))?
BR
but I can not write something like
if (TryUpdateModel(a, "Assessment", new string { "Date"}))
That's because you should write it like this, since the allowed properties argument represents a string array:
if (TryUpdateModel(a, "Assessment", new[] { "Date" }))
{
}
I would suggest that you stay away from using TryUpdateModel in general.
The repository usually has an update method that sets the entityState to modified before Save() is called, i cannot see that in the code above.
If your goal is to display a record and only allow date to be saved, then create a view for that model, and render fields with:
This sets the model for the view:
#model YourNamespace.Models.Assessment
#Html.DisplayFor(model=>model.propertyToDisplay)
on the items you only want to display, and a
#Html.EditorFor(model=>model.Date)
In your action controller you take the properties you want to bind to as input parameters:
Edited
class Assessment
{
public int Id { get; set; }
public DateTime Date { get; set; }
//Other properties
}
public ActionResult Edit(int Id, DateTime Date)
{
var assessment = elearningrepository.GetAssessment(id);
assessment.Date = Date;
elearningrepository.UpdateAssessment(assessment);
elearningrepository.Save();
//Redirect to action Detail
}
In this case the model binder should just bind to Id, and Date, so even if someone tries to post other values (editing the html form is easy), parameters in ActionResult should be named exactly as in the Model and use that to fetch and update the entity.
You should validate that the user actually can access and edit that id, or as an alternative use MVC Security Codeplex to check that the Id parameter has not been tampered with. it is really easy and convenient to use, but that is another discussion.
As an alternative you can use an attribute like this, described in this blog, but I don't use that myself:
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Create( [Bind(Include="Id,Date")] Assessment assessment)
i tried this an it works fine
string[] allowedProperties = new[] { "Date" };
try
{
if (TryUpdateModel(a, allowedProperties))
{