MVC :: Using Action Filter With View?
Feb 9, 2011
I am trying to return different views with xml and json result when say -/API/Security/Authentication/login.xml is passed or
API/Security/Authentication/login.json is passed . I have adde mapped routes for this path.
I have used the ActionFilter attribute for the Login Action Result to automatically check for xml or json and then return the appropriate view.
what to put in the Login.aspx file to render appropriate xml or json based on the above url passed ?
The code is below:
[Code]....
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Similar Messages:
Jan 6, 2011
Is it possible to edit the content of a view from a action filter.
What I am working on is a Resourcemanager that I can use to manage
my style sheets, js and other resources. I want to be able to put
lines in the the view any where like Html.ResourceManager.AddScriptFile("MyScript")
or Html.ResourceManager.AddCSSFile("MyCSS")
and at the end of the view call Html.Render(); this would then place the content of my resources at this point. My problem is that I want to put the CSS stuff at the top of the view, but them problem is that it is renderend at the end of the view, so I tought that I could use a ActionFilter to move it to the top of the view.
1) What would be the best way to do this task ?
2) Is there any resources that describe the way that the MVC framework works in more detail ?
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Mar 17, 2010
I have decorated my base controller with a couple of action filters. They work fine.
One of those filters sets up the request - does things like set the culture based on the domain, etc.
I also have a handful of actions that require authorization using the Authorize attribute.
My problem is that when an user attempts to request a page they are not authorized to access, the authorization filter kicks in and redirects them to a page telling them that they cannot vie the page.
The issue is that the action filters never run so the culture and other request data is never set. This effectively causes language to be wrong in the view and other data to be missing.
I know that authorization filters run first but my question is this: How can I design this such that I can ensure that certain methods are always run before the view is returned, regardless of the authorization.
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Aug 25, 2010
does a action filter override a controller filter?
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Jun 21, 2010
Does any one know how to dynamically add ActionFilter to an Action?
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Dec 10, 2010
I just learned about actionfilters yesterday and thought it would be great if i could put my meta data into a action filter and change the page title, page description etc from 1 location based on a value from the controller.
I've getting so far, but cannot seem to work out how to add the default value to the controller and pass that value to my actionfilter.
[Code]....
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Jul 14, 2010
I need to create application wide error handling mechanism. I was evaluating Action Filter for that matter. But- Action filter will just exectute against actions/controller- what about error at custom view engine or Extension method for HTML helper.: to handle them i need to implement traditional Asp.net mechanismCan anyone suggest best common approach which can handle error for all Controller, View, Model or custom helpers if any.
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Mar 4, 2010
If I have a Filter applied to a controller with a property defined as true.
Can I apply the same filter to one of its actions with value false to override the value for that specific action?
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Jan 20, 2011
I have an app I am transitioning to MVC3 to see what the upgrade path is essentially. I've hit a snag. I believe I've run into a change that may be due to the changes for Dependency Injection in action filter attributes, but I have been unable to track down the cause, and the "correct" solution.This project uses StructureMap and NHibernate. The NHibernate session is started at the beginning of each request, and ends at the end of each request, thanks to a small module. This is just to give an idea of the stack involved...o I have a few custom Authorize attributes (Inheriting from AuthorizeAttribute) that perform some more complicated authorization logic for specific actions that they decorate. Part of their functionality involves using two repositories which they must either (a) have injected, or (b) get from the StructureMap ObjectFactory themselves. In MVC2 I was using option b, so that the CONSTRUCTOR of the attribute looked like this:
[Code]....
This worked fine, as in MVC2 the constructor was called each time the attribute was evaluated. This BREAKS in MVC3, where it would appear that this is no longer the case. Due to this apparent change, the FIRST time this attribute is evaluated, it runs fine, but each subsequent time, any calls in the repositories fails because it claims the NHibernate Session object hasn't been started! The reason being, as far as I can tell, that the CustomAuthorizeAttribute is created once, and then held in whatever state it exists in at that point for the lifetime of the application... Which means that the dependencies inside of it (Which SHOULD go out of scope at the end of each request, and be reinstantiated / fetched at the beginning of subsequent requests), are instead persisting with it becoming stale after the first evaluation.After banging my head against the desk for a few hours, I realized that simply moving these calls to the ObjectFactory into the AutorizeCore method made everything work again.Now, all of this was of course, a hack, because there wasn't a good easy to do real dependency injection into attributes in MVC2. I hear that is changed in MVC3, and I am wondering if this behavior is in response this change, and if so, what do I need to do to make this work?
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Mar 2, 2011
I need to get an image url using FileUpload Control. When i do it in the explorer it shows all files to select. But i need to show only ".jpg,.gif" files. How can i do it.
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Jul 17, 2010
I have a custom actionfilter that strips out the whitespaces before the html is rendered in browser and it is working fine. However I have been unable to unit test the custom action filter. Ideally I want to do an assert on the sample html that all whitespaces have been removed. Code looks something like this.
[Code]....
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Nov 17, 2010
I'm trying to get the current action method by this way.
ActionDescriptor actionDescriptor = filterContext.ActionDescriptor;
string actionName = actionDescriptor.ActionName;
var controllerType = filterContext.Controller.GetType();
var actionMethod = controllerType.GetMethod(actionName);
But if there're two action method with the same name, the AmbiguousMatchException will occur there. Without the ActionMethod property, how can I get the current action method now?
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Feb 25, 2010
I thought this would be easy and maybe it is but it's eluding me.
In an action filter (MVC 2) I want to add/edit one of the parameters for the type I'm passing to my action method.
I have an action method:
[Code]....
Bar is a simple class for viewData:
[Code]....
In my BarFilter action filter OnActionExecuting method I want to add a value for paramA which is not set by the view so that Bar will be fully populated in my Foo action method. I've tried various methods of adding values to ViewData, ModelState, Model etc. but I always get a null returned in Foo.
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Aug 22, 2010
How can I define a Dynamic ViewModel property in MVC 3 inside an action filter?
I am looking to have something like but inside the ActionFilter and not in the controller:
[Code]....
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Mar 3, 2011
i am trying to but a menu of links in master page
but they does not appearr
here is the code
[Code]....
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Sep 27, 2010
i want to create filter in action method for filtering particular user from my database for the login program....
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Nov 1, 2010
I would like to create one view for my CRUD actions. The view contains 3 basic DIV updatetargets ("search form", "search result listing" and "action" (would be create,detail,edit,delete). Basic flow would be: "Search" updates the "Search Result Listing", click on CRUD actions in listing would show partial view in "action".
how do I call to refresh the "Listing" after I do any add/update/delete without having user click search again?
Index:
[Code]....
Result Listing:
[Code]....
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Feb 9, 2011
I use C# in ASP.NET 4.
I have a GridView and an EntityDataSource for binding it with the DataBase.
Source DB Table contains a Bool Column (0,1).
I would like to filter the result in the GridView using a RadioList button or similar.
Adding the WhereParameters to the Entity Set I get an error:
String was not recognized as a valid Boolean.
[Code]....
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Mar 9, 2011
Error:An item with the same key has already been added.
[ArgumentException: An item with the same key has already been added.]
System.ThrowHelper.ThrowArgumentException(ExceptionResource resource) +52
System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add) +9382923
System.Linq.Enumerable.ToDictionary(IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector, IEqualityComparer`1 comparer) +252
System.Linq.Enumerable.ToDictionary(IEnumerable`1 source, Func`2 keySelector, IEqualityComparer`1 comparer) +91
System.Web.Mvc.ModelBindingContext.get_PropertyMetadata() +228
System.Web.Mvc.DefaultModelBinder.BindProperty(ControllerContext controllerContext, ModelBindingContext bindingContext, PropertyDescriptor propertyDescriptor) +392
System.Web.Mvc.DefaultModelBinder.BindProperties(ControllerContext controllerContext, ModelBindingContext bindingContext) +147
System.Web.Mvc.DefaultModelBinder.BindComplexElementalModel(ControllerContext controllerContext, ModelBindingContext bindingContext, Object model) +98
System.Web.Mvc.DefaultModelBinder.BindComplexModel(ControllerContext controllerContext, ModelBindingContext bindingContext) +2504.................................
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Mar 8, 2011
Error:An item with the same key has already been added.
[ArgumentException: An item with the same key has already been added.]
System.ThrowHelper.ThrowArgumentException(ExceptionResource resource) +52
System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add) +9382923
[code]...
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Feb 21, 2011
Am running asp.net application with gridview.Am using filters to filter only one column.Now i want to filter two or more than two columns.How to i set the filters for that..if i give && or|| operators it is showing syntax error..
i given the code as;
"
ProviderName="<%$ ConnectionStrings:booksConnectionString.ProviderName %>"
SelectCommand="SELECT * FROM [book]"
FilterExpression="UserName Like '{0}%' || Password Like '{0}%'" >
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Sep 22, 2010
From inside a viewpage, how can I reference the id from the url /controller/action/id without getting this data from the model?
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Jan 19, 2011
So I have a dropdown in a form which when at item is selected postback to database and get some values which I am now storing in an object. I need to get the values from this object into textboxes on the form in the view..how can I do this???
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Jan 20, 2011
I have the following action executed when a user selects an item from the dropdown;
[Code]....
The object paymentApplicationRefund is populated. I want to get the contents of this object to put in a Html.Textbox(). How do I proceed??
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Jul 28, 2010
I'm using Visual Studio Reports Tools, I want to filter with checkbox but I'm using view how ı can you use
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