MVC :: Route With Nullable Values Using UrlParameter.Optional
Feb 23, 2010
I've got a route that I want to be able to pass nullable values to. I was using MVC 1 but updated my solution to MVC 2 to take advantage of UrlParameter.Optional.
My route look like:
[Code]....
Which works fine if I go to http://localhost:1234/Search.aspx/l-1/t-1/p-1/s-1 but when I go tohttp://localhost:1234/Search.aspx/l-/t-/p-1/s- or any combination with missing parameters I keep getting 404's.
Also on a related note since I've upgraded to MVC 2 I can no longer use RedirectToRoute for the above route I get the following error: No route in the route table matches the supplied values. Whereas in MVC 1 it would redirect to it without any problems.
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Feb 19, 2010
I get a 404 error when I navigate to the following URL using the route below:
http://localhost:53999/properties/
However, all the following are correctly routed to the List action in my controller:
http://localhost:53999/properties/usa/new-york/manhattan/12
http://localhost:53999/properties/usa/new-york/manhattan
http://localhost:53999/properties/usa/new-york
http://localhost:53999/properties/usa [Code]....
In PropertiesController.cs: [Code]....
It looks like it should just go to the default controller/action,
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Aug 7, 2010
I have the following routes setup in my route config file. I have a config reader that maps these to MVC-style routes.
[route name="customers" url="customers/{statename}/{marketname}/{pagenumber}"]
[controller name="Customers" action="Display" //route]
[route name="pcustomers" url="{customername}/customers/{statename}/{marketname}/{pagenumber}"]
[code]...
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Jun 7, 2010
I want to define a route that have 2 optional parameters in the middle of the URL the start an end parameters are digits
[Code].....
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Nov 3, 2010
I'm pretty new to C# and ASP.NET, so bear with me on this one. I'm setting up a page that receives query strings from the url. It then passes these strings to another method (in another class, actually), which goes on to do lots of things depending on the value of the query string.
The general structure looks something like this, where DoSomething() is actually part of another class that will be used by lots of different pages:
pretected void Page_Load (object sender, EventArgs e)
{
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Here's what I'm wondering:
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Nov 10, 2010
I've written the following Extension Method
<Extension()>
Public Function ToUtcIso8601(ByVal dt As Date) As String
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This is what I was thinking, but I'm not sure if this is the right way
[code]....
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Jan 29, 2011
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Jul 11, 2010
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Example:
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Mar 19, 2010
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Jul 1, 2010
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Sep 17, 2010
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[Code]....
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Feb 1, 2011
Global.asax route values
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters
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);
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When the filterlevel is specified in the actionlink, it generates a url like this: [URL] Which is the same page as I am currently on. If I change the actionlink to use a property other than one that has a default value in the route table (yes, if I use filterDate it messes up too), it generates a link like this:..............
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Aug 11, 2010
in my mvc2 application i have an action link like
[Code]....
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Apr 20, 2010
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Sep 16, 2010
I have a post-only action that has a different route. In my form, I need to post to it, but also keep the querystring values I currently have.
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Mar 13, 2011
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routes.MapPageRoute("Node", _
"article/sport/{nID}/", _
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routes.MapRoute( _
"Defaultss", _
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[Code]....
I am checking to see if minperc is null. However to check that it still is trying to convert the value to double. Cant figure out a way around it. Here is the error: Cannot cast DBNull.Value to type 'System.Double'. Please use a nullable type.
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Mar 9, 2010
when i run the app i got this error
A route named 'Admin_default' is already in the route collection. Route names must be unique.
Parameter name: name
this is my AdminAreaRegistration
[Code]....
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Sep 24, 2010
I have a url that I want to map routing to:
[URL]
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^[personal|professional|values]{0,1}$
but it only works when I use url
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[URL]
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Jan 25, 2010
I have a ASP.NET MVC view that displays a single ServiceProvider object. In this view there is a selectlist that lists one or more ServiceProviderGroup objects and uses the Id property for the value and the Name property for the text. In this list I also show a entry with a value of -1 and text of "No Provider". When the Edit[Post] method is called the Id value from the select list maps to a nullable property (GroupId) on a ServiceProvider object. When a value other the -1 is selected from the list it works as expected. But, when the value is -1, I want a NULL reference to be applied to the GroupId property during the UpdateModel call. Within the Edit method, prior to calling UpdateModel, I have tried replacing the entry within the Controller.ValueProvider with a null reference and adding a ValueProviderResult which contains a null reference, but the UpdateModel always has an issue (InvalidOperationException).
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Oct 27, 2010
I have a problem with passing a model to a controllerIn my controller I have a HttpPost function that gets a EF model.The problem is that the form does not contains all properties of the EF model.When the function is called that gets this EF model, I get error messge of fields that are not nullable in the EF model.That's because the fields are not in the form, so the not nullable properties gets no value.
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Nov 17, 2010
I am a c#/asp.net developer and I am having to work on a VB/asp.net. I started out with VB.NET but after years away from it I'm getting confused with the syntax.
I have two variables
Dim originalDate as DateTime?
Dim newDate as DateTime?
Both nullable datetimes, originalDate is a nullable date I am getting from the database and newDate time is set in code, I need to compare them, they can either both have dates, neither have dates or one have and one not.
I have a bit of code as follows:
if origEndDate = origEndDate then
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I don't understand why this is the case because I was under the impression doing an "=" compares the two values and as they are the same surely it should be true?
What syntax should I be using as in C# I can do the above as so:
if (origEndDate == origEndDate) { }
and it will come back as true.
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Feb 23, 2010
I have a small Linq to Sql database application, with a table set up with a datetime field (allow Null). I am able to submit 'Nothing' into the datetime field after setting my .dbml table | field | property to AutoGenerated = True. Why this is I don't know, but it works. Now that I can submit an empty datetime field to the database, I am having trouble loading it into an object with a property set as datetime.
Example: of property in object
Private _deliveryDate As DateTime = Nothing
Public Property DeliveryDate() As DateTime [code]...
Example: setting value when instanciating the obect
dim test as new dateObject(Nothing, ...) ' where (Nothing) represents the datetime field retrieved from the database set to null.When I try the above line I get "Nullable object must have a value."
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