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I've seen that IIS has a problem with letting colons into URLs. I also saw the suggestions others offered here.
With the site I'm working on, I want to be able to pass titles of movies, books, etc., into my URL, colon included, like this:
mysite.com/Movie/Bob:The Return
This would be consumed by my MovieController, for example, as a string and used further down the line.
I realize that a colon is not ideal. Does anyone have any other suggestions? As poor as it currently is, I'm doing a find-and-replace from all colons (:) to another character, then a backwards replace when I want to consume it on the Controller end.
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It is completely fine to use a colon : in a URL path.
Colon IS an invalid character in URL unless it is used for its purpose (for eg http://). "...Only alphanumerics [0-9a-zA-Z], the special characters "$-_. +! *'()," [not including the quotes - ed], and reserved characters used for their reserved purposes may be used unencoded within a URL."
Typical URL Patterns in MVC Applications URL patterns for routes in MVC Applications typically include {controller} and {action} placeholders. When a request is received, it is routed to the UrlRoutingModule object and then to the MvcHandler HTTP handler.
In Solution Explorer, right-click the Controllers folder and then click Add, then Controller. In the Add Scaffold dialog box, click MVC 5 Controller - Empty, and then click Add. Name your new controller "HelloWorldController" and click Add.
I resolved this issue by adding this to my web.config:
<httpRuntime requestPathInvalidCharacters=""/>
This must be within the system.web section.
The default is:
<httpRuntime requestPathInvalidCharacters="<,>,*,%,&,:,\,?"/>
So to only make an exception for the colon it would become
<httpRuntime requestPathInvalidCharacters="<,>,*,%,&,\,?"/>
Read more at: http://msdn.microsoft.com/en-us/library/system.web.configuration.httpruntimesection.requestpathinvalidcharacters.aspx
For what I understand the colon character is acceptable as an unencoded character in an URL. I don't know why they added it to the default of the requestPathInvalidCharacters.
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