Related
I have a project that requires my URLs have dots in the path. For example I may have a URL such as www.example.com/people/michael.phelps
URLs with the dot generate a 404. My routing is fine. If I pass in michaelphelps, without the dot, then everything works. If I add the dot I get a 404 error. The sample site is running on Windows 7 with IIS8 Express. URLScan is not running.
I tried adding the following to my web.config:
<security>
<requestFiltering allowDoubleEscaping="true"/>
</security>
Unfortunately that didn't make a difference. I just receive a 404.0 Not Found error.
This is a MVC4 project but I don't think that's relevant. My routing works fine and the parameters I expect are there, until they include a dot.
What do I need to configure so I can have dots in my URL?
I got this working by editing my site's HTTP handlers. For my needs this works well and resolves my issue.
I simply added a new HTTP handler that looks for specific path criteria. If the request matches it is correctly sent to .NET for processing. I'm much happier with this solution that the URLRewrite hack or enabling RAMMFAR.
For example to have .NET process the URL www.example.com/people/michael.phelps add the following line to your site's web.config within the system.webServer / handlers element:
<add name="ApiURIs-ISAPI-Integrated-4.0"
path="/people/*"
verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS"
type="System.Web.Handlers.TransferRequestHandler"
preCondition="integratedMode,runtimeVersionv4.0" />
Edit
There are other posts suggesting that the solution to this issue is RAMMFAR or RunAllManagedModulesForAllRequests. Enabling this option will enable all managed modules for all requests. That means static files such as images, PDFs and everything else will be processed by .NET when they don't need to be. This options is best left off unless you have a specific case for it.
After some poking around I found that relaxedUrlToFileSystemMapping did not work at all for me, what worked in my case was setting RAMMFAR to true, the same is valid for (.net 4.0 + mvc3) and (.net 4.5 + mvc4).
<system.webserver>
<modules runAllManagedModulesForAllRequests="true">
Be aware when setting RAMMFAR true Hanselman post about RAMMFAR and performance
I believe you have to set the property relaxedUrlToFileSystemMapping in your web.config. Haack wrote an article about this a little while ago (and there are some other SO posts asking the same types of question)
<system.web>
<httpRuntime relaxedUrlToFileSystemMapping="true" />
Edit
From the comments below, later versions of .NET / IIS may require this to be in the system.WebServer element.
<system.webServer>
<httpRuntime relaxedUrlToFileSystemMapping="true" />
I got stuck on this issue for a long time following all the different remedies without avail.
I noticed that when adding a forward slash [/] to the end of the URL containing the dots [.], it did not throw a 404 error and it actually worked.
I finally solved the issue using a URL rewriter like IIS URL Rewrite to watch for a particular pattern and append the training slash.
My URL looks like this: /Contact/~firstname.lastname so my pattern is simply: /Contact/~(.*[^/])$
I got this idea from Scott Forsyth, see link below:
http://weblogs.asp.net/owscott/handing-mvc-paths-with-dots-in-the-path
Just add this section to Web.config, and all requests to the route/{*pathInfo} will be handled by the specified handler, even when there are dots in pathInfo. (taken from ServiceStack MVC Host Web.config example and this answer https://stackoverflow.com/a/12151501/801189)
This should work for both IIS 6 & 7. You could assign specific handlers to different paths after the 'route' by modifying path="*" in 'add' elements
<location path="route">
<system.web>
<httpHandlers>
<add path="*" type="System.Web.Handlers.TransferRequestHandler" verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" />
</httpHandlers>
</system.web>
<!-- Required for IIS 7.0 -->
<system.webServer>
<modules runAllManagedModulesForAllRequests="true" />
<validation validateIntegratedModeConfiguration="false" />
<handlers>
<add name="ApiURIs-ISAPI-Integrated-4.0" path="*" type="System.Web.Handlers.TransferRequestHandler" verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" preCondition="integratedMode,runtimeVersionv4.0" />
</handlers>
</system.webServer>
</location>
MVC 5.0 Workaround.
Many of the suggested answers doesn't seem to work in MVC 5.0.
As the 404 dot problem in the last section can be solved by closing that section with a trailing slash, here's the little trick I use, clean and simple.
While keeping a convenient placeholder in your view:
#Html.ActionLink("Change your Town", "Manage", "GeoData", new { id = User.Identity.Name }, null)
add a little jquery/javascript to get the job done:
<script>
$('a:contains("Change your Town")').on("click", function (event) {
event.preventDefault();
window.location.href = '#Url.Action("Manage", "GeoData", new { id = User.Identity.Name })' + "/";
});</script>
please note the trailing slash, that is responsible for changing
http://localhost:51003/GeoData/Manage/user#foo.com
into
http://localhost:51003/GeoData/Manage/user#foo.com/
Super easy answer for those that only have this on one webpage. Edit your actionlink and a + "/" on the end of it.
#Html.ActionLink("Edit", "Edit", new { id = item.name + "/" }) |
Depending on how important it is for you to keep your URI without querystrings, you can also just pass the value with dots as part of the querystring, not the URI.
E.g. www.example.com/people?name=michael.phelps will work, without having to change any settings or anything.
You lose the elegance of having a clean URI, but this solution does not require changing or adding any settings or handlers.
You might want to think about using dashes instead of periods.
In Pro ASP MVC 3 Framework they suggest this about making friendly URLs:
Avoid symbols, codes, and character sequences. If you want a word
separator, use a dash (/my-great-article). Underscores are unfriendly,
and URL-encoded spaces are bizarre (/my+great+article) or disgusting
(/my%20great%20article).
It also mentions that URLs should be be easy to read and change for humans. Maybe a reason to think about using a dash instead of a dot also comes from the same book:
Don't use file name extensions for HTML pages (.aspx or .mvc), but do use them for specialized file types (.jpg, .pdf, .zip, etc). Web browsers don't care about file name extensions if you set the MIME type appropriately, but humans still expect PDF files to end with .pdf
So while a period is still readable to humans (though less readable than dashes, IMO), it might still be a bit confusing/misleading depending on what comes after the period. What if someone has a last name of zip? Then the URL will be /John.zip instead of /John-zip, something that can be misleading even to the developer that wrote the application.
Would it be possible to change your URL structure?
For what I was working on I tried a route for
url: "Download/{fileName}"
but it failed with anything that had a . in it.
I switched the route to
routes.MapRoute(
name: "Download",
url: "{fileName}/Download",
defaults: new { controller = "Home", action = "Download", }
);
Now I can put in localhost:xxxxx/File1.doc/Download and it works fine.
My helpers in the view also picked up on it
#Html.ActionLink("click here", "Download", new { fileName = "File1.doc"})
that makes a link to the localhost:xxxxx/File1.doc/Download format as well.
Maybe you could put an unneeded word like "/view" or action on the end of your route so your property can end with a trailing / something like /mike.smith/view
As solution could be also considering encoding to a format which doesn't contain symbol., as base64.
In js should be added
btoa(parameter);
In controller
byte[] bytes = Convert.FromBase64String(parameter);
string parameter= Encoding.UTF8.GetString(bytes);
It's as simple as changing path="." to path="". Just remove the dot in the path for ExensionlessUrlHandler-Integrated-4.0 in web.config.
Here's a nice article https://weblog.west-wind.com/posts/2015/Nov/13/Serving-URLs-with-File-Extensions-in-an-ASPNET-MVC-Application
Tried all the solutions above but none of them worked for me. What did work was I uninstalling .NET versions > 4.5, including all its multilingual versions; Eventually I added newer (English only) versions piece by piece. Right now versions installed on my system is this:
2.0
3.0
3.5 4
4.5
4.5.1
4.5.2
4.6
4.6.1
And its still working at this point. I'm afraid to install 4.6.2 because it might mess everything up.
So I could only speculate that either 4.6.2 or all those non-English versions were messing up my configuration.
I was able to solve my particular version of this problem (had to make /customer.html route to /customer, trailing slashes not allowed) using the solution at https://stackoverflow.com/a/13082446/1454265, and substituting path="*.html".
Add URL Rewrite rule to Web.config archive. You need to have the URL Rewrite module already installed in IIS. Use the following rewrite rule as inspiration for your own.
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<system.webServer>
<rewrite>
<rules>
<rule name="Add trailing slash for some URLs" stopProcessing="true">
<match url="^(.*(\.).+[^\/])$" />
<conditions>
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
</conditions>
<action type="Redirect" url="{R:1}/" />
</rule>
</rules>
</rewrite>
</system.webServer>
</configuration>
Also, (related) check the order of your handler mappings. We had a .ashx with a .svc (e.g. /foo.asmx/bar.svc/path) in the path after it. The .svc mapping was first so 404 for the .svc path which matched before the .asmx.
Havn't thought too much but maybe url encodeing the path would take care of this.
This is the best solution I have found for the error 404 on IIS 7.5 and .NET Framework 4.5 environment, and without using: runAllManagedModulesForAllRequests="true".
I followed this thread: https://forums.asp.net/t/2070064.aspx?Web+API+2+URL+routing+404+error+on+IIS+7+5+IIS+Express+works+fine and I have modified my web.config accordingly, and now the MVC web app works well on IIS 7.5 and .NET Framework 4.5 environment.
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Web;
using System.Web.Mvc;
namespace WebApplication1.Controllers
{
[RoutePrefix("File")]
[Route("{action=index}")]
public class FileController : Controller
{
// GET: File
public ActionResult Index()
{
return View();
}
[AllowAnonymous]
[Route("Image/{extension?}/{filename}")]
public ActionResult Image(string extension, string filename)
{
var dir = Server.MapPath("/app_data/images");
var path = Path.Combine(dir, filename+"."+ (extension!=null? extension:"jpg"));
// var extension = filename.Substring(0,filename.LastIndexOf("."));
return base.File(path, "image/jpeg");
}
}
}
This question already has an answer here:
elmah error handling - store in database
(1 answer)
Closed 6 years ago.
I would like to try to intercept and do some other processing ( export a database ) when elmah raises an error.Is there a way to do that?
ELMAH exposes two events in order to do this: ErrorLog_Filtering and ErrorLog_Logged. ErrorLog_Filtering is called just before logging to the configured error log and ErrorLog_Logged is called just after. You will find documentation about error filtering on the ELMAH site. ErrorLog_Logged isn't really documented, but you can see an example of it in this article: Logging to multiple ELMAH logs.
With that said, you probably don't want to execute any long running tasks as part of ErrorLog_Logged and ErrorLog_Filtering. It will slow down your system. I'm not sure on what you are trying to achieve here by exporting a database on every error?
Yes there is way around
1.Lets Create a Project Name ElmahMvc
2.Install nuget package nuget
Install-Package Elmah.MVC
3. Raise an Exception .There you go access error log by your local url/elmah
http://localhost:20351/elmah
The saving database and Emailing is bit of configuration to take ....
Lets look at it
1.Download ELMAH script form official site
ELMAH
2.add a database named log and run the script
3.add a connection string in web.config
<connectionStrings>
<add name="elmah" connectionString="Data Source=.;Initial Catalog=log;Persist Security Info=True;User ID=sa;Password=pass" providerName="System.Data.SqlClient" />
</connectionStrings>
4.Add a elmah element in web.config
<elmah>
<errorLog type="Elmah.SqlErrorLog, Elmah" connectionStringName="elmah" />
<!--For Addtional Mail Config .Remove it if not need for mail on every error-->
<errorMail from="waltoncrm#waltonbd.com"
to="mrahman.cse32#waltonbd.com"
subject="Application Exception"
async="false"
smtpPort="25"
smtpServer="YourServer"
userName="uName"
password="pass">
</errorMail>
</elmah>
and mail additional
under System.WebServer
<system.net>
<mailSettings>
<smtp deliveryMethod ="Network">
<network host="smtp.gmail.com" port="587" userName="yourgmailEmailAddress" password="yourGmailEmailPassword" />
</smtp>
</mailSettings>
</system.net>
Download my sample project and Elmah script with Visual Studio 2013
akash365.com
Note:if you donot want to crash your program or use it in asp.net web form Static [WebMethod]
This seems perfect
try
{
//some web method code
}
catch(Exception ex)
{
Elmah.ErrorSignal.FromCurrentContext().Raise(ex);
}
Am I missing a namespace import? Or using the wrong razor version? Or is it simply a syntax error? When I type "#Html." I do not get the RouteLink function in Visual Studio.
edit: I don't know if this helps anyone, I'm following a tutorial where the author is typing "#Url.RouteUrl" and I wouldn't get that in intellisense either. Instead i did "var url = new System.Web.Mvc.UrlHelper(Context.Request.RequestContext);" and then found the RouteUrl function through the url variable
Try adding this as the 1st line in your Login.cshtml:
#using System.Web.Mvc.Html
Alternatively, check make sure your web.config has this:
<system.web.webPages.razor>
...
<pages ...>
<namespaces>
...
<add namespace="System.Web.Mvc.Html" />
...
</namespaces>
</pages>
</system.web.webPages.razor>
Late answer but maybe useful for others.
I sort it this way:
Close VS
Delete .suo file from the solution folder.
Open project again.
Intellisense should be available again.
I have a project that requires my URLs have dots in the path. For example I may have a URL such as www.example.com/people/michael.phelps
URLs with the dot generate a 404. My routing is fine. If I pass in michaelphelps, without the dot, then everything works. If I add the dot I get a 404 error. The sample site is running on Windows 7 with IIS8 Express. URLScan is not running.
I tried adding the following to my web.config:
<security>
<requestFiltering allowDoubleEscaping="true"/>
</security>
Unfortunately that didn't make a difference. I just receive a 404.0 Not Found error.
This is a MVC4 project but I don't think that's relevant. My routing works fine and the parameters I expect are there, until they include a dot.
What do I need to configure so I can have dots in my URL?
I got this working by editing my site's HTTP handlers. For my needs this works well and resolves my issue.
I simply added a new HTTP handler that looks for specific path criteria. If the request matches it is correctly sent to .NET for processing. I'm much happier with this solution that the URLRewrite hack or enabling RAMMFAR.
For example to have .NET process the URL www.example.com/people/michael.phelps add the following line to your site's web.config within the system.webServer / handlers element:
<add name="ApiURIs-ISAPI-Integrated-4.0"
path="/people/*"
verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS"
type="System.Web.Handlers.TransferRequestHandler"
preCondition="integratedMode,runtimeVersionv4.0" />
Edit
There are other posts suggesting that the solution to this issue is RAMMFAR or RunAllManagedModulesForAllRequests. Enabling this option will enable all managed modules for all requests. That means static files such as images, PDFs and everything else will be processed by .NET when they don't need to be. This options is best left off unless you have a specific case for it.
After some poking around I found that relaxedUrlToFileSystemMapping did not work at all for me, what worked in my case was setting RAMMFAR to true, the same is valid for (.net 4.0 + mvc3) and (.net 4.5 + mvc4).
<system.webserver>
<modules runAllManagedModulesForAllRequests="true">
Be aware when setting RAMMFAR true Hanselman post about RAMMFAR and performance
I believe you have to set the property relaxedUrlToFileSystemMapping in your web.config. Haack wrote an article about this a little while ago (and there are some other SO posts asking the same types of question)
<system.web>
<httpRuntime relaxedUrlToFileSystemMapping="true" />
Edit
From the comments below, later versions of .NET / IIS may require this to be in the system.WebServer element.
<system.webServer>
<httpRuntime relaxedUrlToFileSystemMapping="true" />
I got stuck on this issue for a long time following all the different remedies without avail.
I noticed that when adding a forward slash [/] to the end of the URL containing the dots [.], it did not throw a 404 error and it actually worked.
I finally solved the issue using a URL rewriter like IIS URL Rewrite to watch for a particular pattern and append the training slash.
My URL looks like this: /Contact/~firstname.lastname so my pattern is simply: /Contact/~(.*[^/])$
I got this idea from Scott Forsyth, see link below:
http://weblogs.asp.net/owscott/handing-mvc-paths-with-dots-in-the-path
Just add this section to Web.config, and all requests to the route/{*pathInfo} will be handled by the specified handler, even when there are dots in pathInfo. (taken from ServiceStack MVC Host Web.config example and this answer https://stackoverflow.com/a/12151501/801189)
This should work for both IIS 6 & 7. You could assign specific handlers to different paths after the 'route' by modifying path="*" in 'add' elements
<location path="route">
<system.web>
<httpHandlers>
<add path="*" type="System.Web.Handlers.TransferRequestHandler" verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" />
</httpHandlers>
</system.web>
<!-- Required for IIS 7.0 -->
<system.webServer>
<modules runAllManagedModulesForAllRequests="true" />
<validation validateIntegratedModeConfiguration="false" />
<handlers>
<add name="ApiURIs-ISAPI-Integrated-4.0" path="*" type="System.Web.Handlers.TransferRequestHandler" verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" preCondition="integratedMode,runtimeVersionv4.0" />
</handlers>
</system.webServer>
</location>
MVC 5.0 Workaround.
Many of the suggested answers doesn't seem to work in MVC 5.0.
As the 404 dot problem in the last section can be solved by closing that section with a trailing slash, here's the little trick I use, clean and simple.
While keeping a convenient placeholder in your view:
#Html.ActionLink("Change your Town", "Manage", "GeoData", new { id = User.Identity.Name }, null)
add a little jquery/javascript to get the job done:
<script>
$('a:contains("Change your Town")').on("click", function (event) {
event.preventDefault();
window.location.href = '#Url.Action("Manage", "GeoData", new { id = User.Identity.Name })' + "/";
});</script>
please note the trailing slash, that is responsible for changing
http://localhost:51003/GeoData/Manage/user#foo.com
into
http://localhost:51003/GeoData/Manage/user#foo.com/
Super easy answer for those that only have this on one webpage. Edit your actionlink and a + "/" on the end of it.
#Html.ActionLink("Edit", "Edit", new { id = item.name + "/" }) |
Depending on how important it is for you to keep your URI without querystrings, you can also just pass the value with dots as part of the querystring, not the URI.
E.g. www.example.com/people?name=michael.phelps will work, without having to change any settings or anything.
You lose the elegance of having a clean URI, but this solution does not require changing or adding any settings or handlers.
You might want to think about using dashes instead of periods.
In Pro ASP MVC 3 Framework they suggest this about making friendly URLs:
Avoid symbols, codes, and character sequences. If you want a word
separator, use a dash (/my-great-article). Underscores are unfriendly,
and URL-encoded spaces are bizarre (/my+great+article) or disgusting
(/my%20great%20article).
It also mentions that URLs should be be easy to read and change for humans. Maybe a reason to think about using a dash instead of a dot also comes from the same book:
Don't use file name extensions for HTML pages (.aspx or .mvc), but do use them for specialized file types (.jpg, .pdf, .zip, etc). Web browsers don't care about file name extensions if you set the MIME type appropriately, but humans still expect PDF files to end with .pdf
So while a period is still readable to humans (though less readable than dashes, IMO), it might still be a bit confusing/misleading depending on what comes after the period. What if someone has a last name of zip? Then the URL will be /John.zip instead of /John-zip, something that can be misleading even to the developer that wrote the application.
Would it be possible to change your URL structure?
For what I was working on I tried a route for
url: "Download/{fileName}"
but it failed with anything that had a . in it.
I switched the route to
routes.MapRoute(
name: "Download",
url: "{fileName}/Download",
defaults: new { controller = "Home", action = "Download", }
);
Now I can put in localhost:xxxxx/File1.doc/Download and it works fine.
My helpers in the view also picked up on it
#Html.ActionLink("click here", "Download", new { fileName = "File1.doc"})
that makes a link to the localhost:xxxxx/File1.doc/Download format as well.
Maybe you could put an unneeded word like "/view" or action on the end of your route so your property can end with a trailing / something like /mike.smith/view
As solution could be also considering encoding to a format which doesn't contain symbol., as base64.
In js should be added
btoa(parameter);
In controller
byte[] bytes = Convert.FromBase64String(parameter);
string parameter= Encoding.UTF8.GetString(bytes);
It's as simple as changing path="." to path="". Just remove the dot in the path for ExensionlessUrlHandler-Integrated-4.0 in web.config.
Here's a nice article https://weblog.west-wind.com/posts/2015/Nov/13/Serving-URLs-with-File-Extensions-in-an-ASPNET-MVC-Application
Tried all the solutions above but none of them worked for me. What did work was I uninstalling .NET versions > 4.5, including all its multilingual versions; Eventually I added newer (English only) versions piece by piece. Right now versions installed on my system is this:
2.0
3.0
3.5 4
4.5
4.5.1
4.5.2
4.6
4.6.1
And its still working at this point. I'm afraid to install 4.6.2 because it might mess everything up.
So I could only speculate that either 4.6.2 or all those non-English versions were messing up my configuration.
I was able to solve my particular version of this problem (had to make /customer.html route to /customer, trailing slashes not allowed) using the solution at https://stackoverflow.com/a/13082446/1454265, and substituting path="*.html".
Add URL Rewrite rule to Web.config archive. You need to have the URL Rewrite module already installed in IIS. Use the following rewrite rule as inspiration for your own.
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<system.webServer>
<rewrite>
<rules>
<rule name="Add trailing slash for some URLs" stopProcessing="true">
<match url="^(.*(\.).+[^\/])$" />
<conditions>
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
</conditions>
<action type="Redirect" url="{R:1}/" />
</rule>
</rules>
</rewrite>
</system.webServer>
</configuration>
Also, (related) check the order of your handler mappings. We had a .ashx with a .svc (e.g. /foo.asmx/bar.svc/path) in the path after it. The .svc mapping was first so 404 for the .svc path which matched before the .asmx.
Havn't thought too much but maybe url encodeing the path would take care of this.
This is the best solution I have found for the error 404 on IIS 7.5 and .NET Framework 4.5 environment, and without using: runAllManagedModulesForAllRequests="true".
I followed this thread: https://forums.asp.net/t/2070064.aspx?Web+API+2+URL+routing+404+error+on+IIS+7+5+IIS+Express+works+fine and I have modified my web.config accordingly, and now the MVC web app works well on IIS 7.5 and .NET Framework 4.5 environment.
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Web;
using System.Web.Mvc;
namespace WebApplication1.Controllers
{
[RoutePrefix("File")]
[Route("{action=index}")]
public class FileController : Controller
{
// GET: File
public ActionResult Index()
{
return View();
}
[AllowAnonymous]
[Route("Image/{extension?}/{filename}")]
public ActionResult Image(string extension, string filename)
{
var dir = Server.MapPath("/app_data/images");
var path = Path.Combine(dir, filename+"."+ (extension!=null? extension:"jpg"));
// var extension = filename.Substring(0,filename.LastIndexOf("."));
return base.File(path, "image/jpeg");
}
}
}
I want to use ConfigurableActiveDirectoryMembershipProvider in my code. I have my current settings as
<add name="XXXXMembershipProvider"
type="System.Web.Security.ActiveDirectoryMembershi pProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
connectionStringName="XXXXConnectionString"
connectionUsername="user"
connectionPassword="password"
connectionProtection="Secure" />
I have changed this to
<add connectionStringName=""
name="XXXXDomainADMembershipProvider"
type="Spring.Web.Providers.MembershipProviderAdapter, Spring.Web" />
and added in to my spring config file as
<object id="XXXXDomainADMembershipProvider"
type="Spring.Web.Providers.ConfigurableActiveDirec toryMembershipProvider">
<property name="connectionStringName" value="XXXXDomainConnectionString" />
<property name="connectionUsername" value="user" />
<property name="connectionPassword" value="password" />
</object>
But I am getting the following error
Error creating context 'spring.root': Could not load type from string value 'Spring.Web.Providers.ConfigurableActiveDirectoryM embershipProvider'.
I checked the Spring.WebQuickStart source code and the class Spring.Web.Providers.ConfigurableActiveDirectoryMembershipProvider has been commented out.
Is that the reason I am getting the above error?
Yes, I think you are correct. The error you are getting is exactly the error Spring returns when you are trying to configure an object using a type that can not be loaded. For instance if the class does not exist at all, which appears to be the case here.
You can double check if the ConfigurableActiveDirectoryMembershipProvider class exists by using the object browser to explore the Spring.Web.Providers namespace in the Spring.Web assembly you are using in your project.
You are right that the class is commented out in the current state of the trunk code. It has a small TBD note, so I think they are not sure if they want to implement this. But it could be that it wasn't commented out in the version of Spring.Web you are using, so you should still check it using the object explorer.
Strangely enough, the ConfigurableActiveDirectoryMembershipProvideris mentioned in the documentation - you might want to post this on the Spring.Net forum they're likely to help you.