MVC :: How To Check In Controller Where The Maproute It Was Called

Nov 29, 2010

This two maproute maps to the same controller, how to check in the controller which maproute it was called from?

routes.MapRoute( _
"Categories", _
"category/15", _


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I am new to MVC2 and have hit a wall. When I use an action link to jump back to a previous page that I have already been on, my controller is not called but the page is rendered correctly. Is this some sort of caching that I am not aware of? This also happens with a RedirectToAction call from another Controller. rfm is the Model...

return RedirectToAction("Search", rfm);

Here is the actionlink...

<%: Html.ActionLink("Search", "Search", "Reference")%>

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Controller Method Not Always Called From $.getJSON Request?

Mar 9, 2010

I have a controller method that returns a jSON object and in one calling situation, it works and in another calling situation, it does not work. When the URL in my browser is this:

http://localhost:65247/Client -- it works.

But, when my url looks like this:

http://localhost:65247/Client/UserAdmin?id=6 -- it DOES NOT work

In a nutshell, clients have users. From within the client, I wish to work on a specific user (this is the UserAdmin view). In this case, the client id is 6. From within the UserAdmin view that was launched with Id=6, I then wish to select a user from a dropdown. The idea was to use javascript and $.getJSON to fetch data for the specific user so as not to have to refresh the entire page. I use this approach in other parts of the app. The only difference I can see is with the URL in the browser. It would appear the presence of parameters via the '?' is futzing things up a bit.

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I have a controller method "SaveFile" that attempts to download a binary stream to client's PC using the FileContentResult. If I make the call as a post from the controller corresponding view everything works OK. I want to call the same controller method "SaveFile" from a jquery function via an .ajax call, when I do the function returns an error and the responseText is the contents of the file to be written. What would I have to do to get the same behavior from a jQuery function as if the MVC framework handled the call via the submit button? Or an alternate solution would be to determine how can I catch the browser's download dialog close event.

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MVC ::Session Variables Called From The Owning Controller?

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I'm calling an action from another controller using this code


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Jul 23, 2010

I have a javascript library and in there i have a method that is called from my view. Here it is:

<li><a href="javascript:void 0" onclick="deleteAll('image', '<%= ViewData["FileGroupId"]%>')"><div><%=GetGlobalResourceObject("default", "Delete_all") %></div><div></div></a></li>
and here is my js code in the javascript library:
var deleteAll = function(module, groupId) {
jConfirm(_deleteConfirmAll, _deleteAll, function(r) {
if (r) {
cache: false,
type: "POST",
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success: function(msg) {
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else {
jAlert(msg, _errorTitle);
My problem is that i cant reach my controller. Here is my controller code:
#region common methods
List<.CMS.Core.File> GetList(int groupId)
List<CMS.Core.File> list = new List<CMS.Core.File>();
CMS.Core.FileFilter filter = new CMS.Core.FileFilter();
filter.GroupId = groupId;
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public ActionResult DeleteAll(int groupId)
List<CMS.Core.File> list = GetList(groupId);
foreach (File item in list)
return Json(list);
And at last her is my Index method
public ActionResult Index(int? id)
if (Request.IsAjaxRequest())
JsonPaging paging = new JsonPaging();
int offset = 0;
int page = 0;
if (!String.IsNullOrEmpty(Request.QueryString["page"]))
Int32.TryParse(Request.QueryString["page"], out page);
if (page > 0)
offset = (page * paging.PageSize) - paging.PageSize;
FileFilter filter = new FileFilter();
filter.Deleted = false;
filter.MaxRecords = paging.PageSize;
filter.Offset = offset;
if (!String.IsNullOrEmpty(Request.QueryString["keywords"]))
filter.FilterType = FilterTypes.AND;
filter.Name = Request.QueryString["keywords"].ToString();
if (!String.IsNullOrEmpty(Request.QueryString["sort"]))
filter.OrderBy = Request.QueryString["sort"].ToString();
if (!String.IsNullOrEmpty(Request.QueryString["direction"]))
filter.OrderBy = filter.OrderBy + " " + Request.QueryString["direction"].ToString();
if (id > 0)
filter.GroupId = id.Value;
List<CMS.Core.File> items = new List<CMS.Core.File>();
int results = CMS.Core.File.Search(_connection, filter, ref items);
foreach (CMS.Core.File current in items)
JsonItem item = new JsonItem();
item.Id = current.Id;
item.Name = current.Name;
item.ImageText = current.ImageText;
item.Aperture = current.Aperture;
item.TakenOn = current.TakenOn;
item.Camera = current.Camera;
item.ExposureTime = current.ExposureTime;
item.FocalLenght = current.FocalLenght;
item.Tags = current.Tags;
item.Url = current.Url;
item["Active"] = current.Active.ToString();
item["Created"] = current.Created.ToString();
return Json(paging, JsonRequestBehavior.AllowGet);
ViewData["FileGroupId"] = id;
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Nov 16, 2010

I'm using a simple base class for my controller that sets a piece of ViewData and makes use of the HttpContext. My understanding is that I need to put this code in Initialize() or OnActionExecuting(). I tried both, but believe Initialize() is what I want.

This works when running the app in VS just fine.

I wrote a unit test that calls the action and checks the ViewData for the expected value. When unit testing, neither method is called.

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MVC :: MapRoute - Specifying A Namespace?

May 6, 2010

What is this namespaces argument for? It seems to have no impact at all. I have two controllers called ClientUser in seperate namespaces of the same assembly. I specify told the route to look in the *.ClientUIControllers namespace and all I get back is:Multiple types were found that match the controller named 'ClientUser'. This can happen if the route that services this request ('{controller}/{action}') does not specify namespaces to search for a controller that matches the request. If this is the case, register this route by calling an overload of the 'MapRoute' method that takes a 'namespaces' parameter.

The request for 'ClientUser' has found the following matching controllers:
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route.DataTokens.Add("namespaces", new string[] { controllersNamespace });

I tried to debug MVC2 but it all got a bit too abstracted and with annoying limitations of debugging release build it got too hard. I got up to ControllerTypeCache.GetControllerTypes but I couldn't follow it. I can see that the specified namespace was definiately in the namespaces arg.

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"Default", // Route name
"{module}/{controller}/{action}/{id}", // URL with params
new { module = "module", controller = "controller", action = "Index", id = ""}

This is what I want, but the code doesn't work. What more do I need to change to change the MapRoute?

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ASP.NET MVC's MapRoute method has a parameter named namespaces. From looking in the code, I see that this parameter is saved in the Route object

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It seems to me that it has some meaning... anyone knows what is it for?

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I want to check if a user in User table is found either in UserName Column or in FriendUserName Column in UserFollow table and if yes display lable found, But if no display lable notfound. This code will be excuted onse a user logs in the connection code

protected void Page_Load(object sender, EventArgs e)
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Function Delete(ByVal id As Integer) As ActionResult

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I have a simple model where a Person has Gifts. I have a view which is a list of Gifts belonging to one Person.

My problem is with the Create action for a new Gift. I want it to default to the PersonID that we are already viewing the list of Gifts for. I tried simply passing the last PersonID (they are all the same)

Html.ActionLink("Create New", "Create", new { id = Model.Last().PersonID }) which works fine if there is already at least one Gift for that person but if this is the first Gift I don't have a value.

My Gift List controller knows the PersonID I want to pass but the view doesn't.

How do I pass this PersonID from my Gift List controller to my Gift Create controller via the Gift List view? Or is there a better way to do this?

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I have a filter on my MVC web site. I display some records in a few different controller actions but when moving from one action to another I want to apply those filter values.

How can I persist values from controller to controller?

Should I use Session? TempData?

I am using Structure Map for IOC.

Maybe I could have a class that contains a Property for each Session Value that I use in my application and inject it on the controllers that need session?

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How do you get the current action / controller name in a controller or class?

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Jan 24, 2011

I have a User entity and a department entity. I have a UserViewModel and DepartmentListModel which has List of departments.

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I tried doing so


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Say I have several Areas that are baed on user roles.Differnet roles have different functionality, but also have some "shared" functionality like say "Payments"Now, I created a PaymentController (and it's views for listing, creating messages) in Shared (not an area) and it works fine.

Would it be possible (and how?) to create a PaymentsController class in one of the Areas, have that inherit the PaymentController Class in Shared?

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