Say I have a project that I am deploying at
www.foo.com/path1/default.aspx
and
www.foo.com/path2/default.aspx
What would be the most reliable way to know if I was in the folder "path1", or "path2"? Can I grab that directly, or do I need to split() somehow on the Request.Url.AbsolutePath, or... ?
I just want to change colors, etc. based on which folder the user is in.
Thanks for any assistance!
If you want to code that logic directly into the page, then yeah, I'd go with split() on Request.Url.AbsolutePath.
That said, I'd consider storing this kind of setting in the AppSettings section of web.config. That way if you decide to change the color in path2, you just need to edit the web.config for path2. If you need to add a new path, just deploy there and edit the web.config as appropriate.
Yeah use Request.Url.AbsolutePath.
I do it to create Breadcrumbs, using Split to split the URL, then in your case I suggest to use Switch statement to change color based on the case of the Switch statement
Here is a great article about Paths in ASP.
Check out the MSDN docs on System.IO.Path. It contains a number of useful functions for dealing with path names. You can get GetDirectoryName() or GetFullPath() or GetFileName() or GetFileNameWithoutExtension().
Related
I'm currently using the NLog.Web package for writing my .Net logs in my application.
After reading the NLog.Web I've noticed that unlike the ${windows-identity} layout renderer, the ${aspnet-user-identity} layout renderer got no domain parameter for it.
For example, if I want to log the current running windows identity, it logs out: domain\user, but when specifying domain=false, it logs only user.
How do I implement this kind of ability with the ${aspnet-user-identity}? Because when I configured ${aspnet-user-identity:domain=false} it didn't work.
The WindowsIdentity.Name, used in NLog, will always give the full name, including domain.
The logon name is in the form DOMAIN\USERNAME.
https://msdn.microsoft.com/en-us/library/system.security.principal.windowsidentity.name(v=vs.110).aspx
I think you need a custom layout renderer, and split it by-hand on the /.
Something like this: (maybe also add soms checks for outOfIndex)
using NLog.LayoutRenderers;
....
//register ${my-aspnet-user-identity}
LayoutRenderer.Register("my-aspnet-user-identity",
(logEvent) => HttpContext.Current?.User?.Identity?.Name?.Split('/')[1]);
Register it as soon as possible.
I found a different way to solve this issue #Julian
in the NLog.config file, i created a variable:
<variable name="aspnetIdentity" value="${replace:searchFor=^\\w+\\\\:replaceWith=:regex=true:inner=${aspnet-user-identity}}" />
As defined in the variable, the regex searches for at least one word (at the start) and finally searching for a backslash.
the other backslashes are written to escape special characters and also double backslashing. Finally, what was found (it's the domain name) will be replaced with an empty string and therefore I got only the username and not the Domain\Username
Thanks for the help #Julian
I'm trying to migrate my ASPX site to Kentico, and as part of my task I'm migrating URLs. I need to preserve my URL structure, so I need to keep URLs which look like : "foo.com/bar.aspx?pageid=1".
I checked page's "URLs" property tried to use wildcards, some patterns like /bar/{pageid}- /bar/{?pageid?}-, etc but Kentico always replaces question marks.
Is there a way to achieve that via the admin interface?
You don't need to do anything in order to use "foo.com/bar.aspx?pageid=1" url.
Create a page under the root and call it bar, so you'll get a page # foo.com/bar.aspx. Kentico and/or .net does not care what you add to a url after question mark, so foo.com/bar.aspx?pageid=1 will work as well as foo.com/bar.aspx?someparam=sdf, or foo.com/bar.aspx?id=1&p=3&t=3.
You may (or may not) implement some functionality based on query string (e.g. paging), so it will parse query string and act in appropriate way.
By default Kentico UI does not handle adding URL aliases with URL parameters like you show. There is an article on the DevNet for a URL Redirection module which has code you can import into your site to allow you to perform these redirects within the Kentico UI. I'd suggest using this approach.
Unfortunately, I can't share a code sample since it's an article but it also has a link to download the code too. This appears to only be coded for Kentico 8.2 right now but I'm guessing you could do some work to make it work for other versions if you needed.
I think there are few concepts that you are clubbing here. I will start with your line code here
/bar/{pageid} - {pageid} is a positional parameter in Kentico's language if you choose to use dynamic URLS based on patterns. SO if you have a code that relies on pageid parameter to fetch some data then Kentico will pass that value. E.g in case of /bar/420, it will pass pageid as 420 different web parts on your template
/bar/{?pageid?} - This will search for query string parameter "pageid" on the request URL and replace its value here. So if you passed foo.com/bar.aspx?pageid=366, the resulting URL will be /bar/366
The #1 is positional parameter and #2 is the way in which Kentico resolves query string macros.
I hope this clarifies.
I am working with a framework written in .NET and I do not know .NET. I just need to change this one line where it checks to see if a variable exists, and I need to change it to instead just check on the server to see if the file itself exists.
Here is what is there now:
#if (!string.IsNullOrEmpty(Model.DrawingLink2){
Is this the correct code to change it to check if the file exists instead?
#if (File.Exists(/Portfolio/#(Model.FileNumber)/Images/Large_#(Model.FileNumber)_1.jpg))
You need to map that file, relative to the root of the web application, to the physical file system. You can use HttpServerUtility.MapPath for that. You also need quotes around string literals. The process running the code also needs read access to the directory (very likely the case, just mentioning it to be complete).
#if (File.Exists(HttpServerUtility.MapPath("/Portfolio/#(Model.FileNumber)/Images/Large_#(Model.FileNumber)_1.jpg"))
The reason I'm asking is because IIS protects certain ASP.NET folders, like Bin, App_Data, App_Code, etc. Even if the URL does not map to an actual file system folder IIS rejects a URL with a path segment equal to one of the mentioned names.
This means I cannot have a route like this:
{controller}/{action}/{id}
... where id can be any string e.g.
Catalog/Product/Bin
So, instead of disabling this security measure I'm willing to change the route, using a suffix before the id, like these:
{controller}/{action}_{id} // e.g. Catalog/Product_Bin
{controller}/{action}/_{id} // e.g. Catalog/Product/_Bin
But these routes won't work if the id contains the new delimeter, _ in this case, e.g.
// These URL won't work (I get 404 response)
Catalog/Product_Bin_
Catalog/Product/_Bin_
Catalog/Product/__Bin
Why? I don't know, looks like a bug to me. How can I make these routes work, where id can be any string?
Ok, I have a definitive answer. Yes, this is a bug. However, at this point I regret to say we have no plans to fix it for a couple of reasons:
It's a breaking change and could be a very hard to notice one at that.
There's an easy workaround.
What you can do is change the URL to not have the underscore:
{controller}/{action}/_{id}
Then add a route constraint that requires that the ID parameter starts with an underscore character.
Then within your action method you trim off the underscore prefix from the id parameter. You could even write an action filter to do this for you if you liked. Sorry for the inconvenience.
You can use characters that are not allowed for a directory or file name like: *,?,:,",<,>,|.
With ASP.NET MVC if you look at the source they have a hard-coded value for the path separator (/) and to my knowledge cannot be changed.
i use such code
string.Format("<img src='{0}'><br>", u.Avatar);
u.Avatar-it's like '/img/path/pic.jpg'
but in this site i can upload new image instead old pic.jpg. so picture new, but name is old. and browser show OLD picture (cache). if i put random number like /img/path/pic.jpg?123 then works fine, but i need it only ufter upload, not always. how can i solve this?
string imgUrl = _
string.Format("<img src='{0}?{1}'><br>", _
u.Avatar, _
FunctionThatLookupFileSystemForItsLastModified(u.Avatar).Ticks.ToString());
Instead of linking to the images directly, consider setting up a generic HTTP handler to serve the images.
MSDN: HTTP Handlers and HTTP Modules Overview
Stack Overflow: How to use output caching on .ashx handler
Append DateTime.Now.Ticks to the image url:
string imgUrl =
string.Format("<img src='{0}?{1}'><br>", u.Avatar,DateTime.Now.Ticks);
EDIT: I don' think this best practice are even a practice I would use. This is just a suggestion given the limited information given in case the Random implementation isn't truly Random.
Read your post again,,, sorry for general answer.
To workaround it do following
On Application_Start create a Dictionary with uploaded images save it on Application object, set it to null. Once you upload an image add it to this Dictionary. Wrap every place avatars appear on your website with function that evaluates image in Dictionary if found return imagename.jpg?randomnumber and then delete it from a Dictionary else return just an imagename.jpg.
This is going to be heavy because you will need to check each image in Dictionary but this will do exactly what you need.
You can set cache dependancy using the System.Web.Caching.CacheDependency namespace.
This can set the dependancy on the file uploaded, and will release the cache for that file automatically when the file changes.
There are lots of articles and stuff on MSDN and other places so I will not go into details on all that level of detail.
You can do inserts, deletes and other management of cache using the tools available.
(and this does not require you to change the file names or tack on stuff - it knows by the file system that the file changed)