Try the following:

    Copyright @@ @DateTime.Now.Year

In a .razor page in an ASP.NET Core application, e.g. within the `&lt;div&gt; &lt;/div&gt;` of your footer, the following works too:

    Copyright &amp;#169 @DateTime.Now.Year

*Added the copyright sign too and the double @@ is not needed in a razor page; it gives an error.*

Would the following be the correct way to implement a fairly straightforward thread-safe logging class?

I know that I never explicitly close the `TextWriter`, would that be a problem? 

When I initially used the `TextWriter.Synchronized` method, it did not seem to work until I initialized it in a static constructor and made it readonly like so:

    public static class Logger
    {
        static readonly TextWriter tw; 

        static Logger()
        {
            tw = TextWriter.Synchronized(File.AppendText(SPath() + &quot;\\Log.txt&quot;)); 
        }

        public static string SPath()
        {
            return ConfigManager.GetAppSetting(&quot;logPath&quot;); 
        }

        public static void Write(string logMessage)
        {
            try
            {
                Log(logMessage, tw);
            }
            catch (IOException e)
            {
                tw.Close();
            }
        }

        public static void Log(string logMessage, TextWriter w)
        {
            w.WriteLine(&quot;{0} {1}&quot;, DateTime.Now.ToLongTimeString(),
                DateTime.Now.ToLongDateString());
            w.WriteLine(&quot;  :&quot;);
            w.WriteLine(&quot;  :{0}&quot;, logMessage);
            w.WriteLine(&quot;-------------------------------&quot;);

            // Update the underlying file.
            w.Flush();
        }
    }

Thread safe logging class implementation

Stack Overflow question *[How and/or why is merging in Git better than in SVN?][1]* is a great question with some **great answers**. However none of them show a simple example where merging in Git works better than [SVN][2].

On the chance this question will be closed as a duplicate, what is

 1. A concrete merge scenario
 2. How it is difficult in SVN?
 3. How the same merge is easier in Git?

A few points:

 - No philosophy or deep explanations of what a DVCS is please. These are great, really, but I don&#39;t want their details to obfuscate the answer to this (IMHO) important
 - I don&#39;t care about &quot;historic SVN&quot; at the moment. Please compare modern Git (1.7.5) to modern SVN (1.6.15).
 - No renames please - I know that Git detects renames and moves, while SVN doesn&#39;t. This is great, but I am looking for something deeper, and example that doesn&#39;t involve renames or moves.
 - No rebase or other &#39;advanced&#39; Git operation. Just show me the merge please.

  [1]: https://stackoverflow.com/questions/2471606/how-and-or-why-is-merging-in-git-better-than-in-svn
  [2]: http://en.wikipedia.org/wiki/Apache_Subversion


Really, a concrete example that merging in Git is easier than SVN?

I want to add Copyright @ &#39;current_year&#39; to the footer (in cshtml file) of my page. I often made it using javascript but since I am using ASP.NET MVC 3 I would like to do this using ASP. 

I was trying construction like:

    @response.write(&quot;Current Year: &quot;&amp;Year(Date))

But it didn&#39;t work in MVC 3 and I can&#39;t find solution that is working.

Current Year in ASP.NET MVC 3

I want to add Copyright @ 'current_year' to the footer (in cshtml file) of my page. I often made it using javascript but since I am using ASP.NET MVC 3 I would like to do this using ASP.
I was trying construction like:
<pre><code class="hljs language-python">@response.write("Current Year: "&#x26;Year(Date))
</code></pre>
But it didn't work in MVC 3 and I can't find solution that is working.

I am just wondering: I am looking for a way to validate if a given path is valid.
*(Note: I do not want to check if a file is existing! I only want to proof the validity of the path - So if a file could possibly exists at the location)*.

Problem is, I can&#39;t find anything in the .Net API.
Due to the many formats and locations that Windows supports, I&#39;d rather use something MS-native.

Since the function should be able to check against:

&gt; - Relative Paths (./)
&gt; - Absolute Paths (c:\tmp)
&gt; - UNC-Pathes (\\some-pc\c$)
&gt; - NTFS-Limitations like the full path 1024 chars - If I am not mistaken exceeding the path will make a file inaccessible for many
&gt; internal Windows functions. Renaming it with Explorer still works
&gt; - Volume GUID Paths : &quot;\\?\Volume{GUID}\somefile.foo

Does anyone have a function like this?


Check whether a path is valid

I have classes like these:

    class MyDate
    {
        int year, month, day;
    }

    class Lad
    {
        string firstName;
        string lastName;
        MyDate dateOfBirth;
    }

And I would like to turn a `Lad` object into a **JSON** string like this:

    {
        &quot;firstName&quot;:&quot;Markoff&quot;,
        &quot;lastName&quot;:&quot;Chaney&quot;,
        &quot;dateOfBirth&quot;:
        {
            &quot;year&quot;:&quot;1901&quot;,
            &quot;month&quot;:&quot;4&quot;,
            &quot;day&quot;:&quot;30&quot;
        }
    }

(Without the formatting). I found [this link][1], but it uses a namespace that&#39;s not in **.NET 4**. I also heard about [JSON.NET][2], but their site seems to be down at the moment, and I&#39;m not keen on using external DLL files.

Are there other options besides manually creating a **JSON** string writer?

  [1]: http://msdn.microsoft.com/en-us/library/system.web.script.serialization.javascriptserializer(v=vs.110).aspx
  [2]: http://james.newtonking.com/projects/json-net.aspx


How do I turn a C# object into a JSON string in .NET?

I have a question. Is it possible to call generic method using reflection in .NET?
I tried the following code 

    var service = new ServiceClass();
    Type serviceType = service.GetType();
    MethodInfo method = serviceType.GetMethod(&quot;Method1&quot;, new Type[]{});
    method.MakeGenericMethod(typeof(SomeClass));
    var result = method.Invoke(service, null);

But it throws the following exception &quot;Late bound operations cannot be performed on types or methods for which ContainsGenericParameters is true.&quot;

Calling generic method using reflection in .NET

There is a similar question, but it seems that the solution didn&#39;t work out in my case: [https://stackoverflow.com/questions/3715936/weirdness-with-xdocument-xpath-and-namespaces][1]

Here is the XML I am working with:

    &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
    &lt;Report Id=&quot;ID1&quot; Type=&quot;Demo Report&quot; Created=&quot;2011-01-01T01:01:01+11:00&quot; Culture=&quot;en&quot; xmlns=&quot;http://demo.com/2011/demo-schema&quot;&gt;
        &lt;ReportInfo&gt;
            &lt;Name&gt;Demo Report&lt;/Name&gt;
            &lt;CreatedBy&gt;Unit Test&lt;/CreatedBy&gt;
        &lt;/ReportInfo&gt;
    &lt;/Report&gt;


And below is the code that I thought it should be working but it didn&#39;t...

    XDocument xdoc = XDocument.Load(@&quot;C:\SampleXML.xml&quot;);
    XmlNamespaceManager xnm = new XmlNamespaceManager(new NameTable()); 
    xnm.AddNamespace(String.Empty, &quot;http://demo.com/2011/demo-schema&quot;);
    Console.WriteLine(xdoc.XPathSelectElement(&quot;/Report/ReportInfo/Name&quot;, xnm) == null);

Does anyone have any ideas?
Thanks.

  [1]: https://stackoverflow.com/questions/3715936/weirdness-with-xdocument-xpath-and-namespaces



how to use XPath with XDocument?

I have a C# Windows Service that I recently moved from .NET 3.5 to .NET 4.0. No other code changes were made.

When running on 3.5, memory utilzation for a given work load was roughly 1.5 GB of memory and throughput was 20 X per second. (The X doesn&#39;t matter in the context of this question.)

The exact same service running on 4.0 uses between 3GB and 5GB+ of memory, and gets less than 4 X per second. In fact, the service will typically end up stalling out as memory usage continue to climb until my system is siting at 99% utilization and page file swapping goes nuts.

I&#39;m not sure if this has to do with garbage collection, or what, but I&#39;m having trouble figuring it out. My window service uses the &quot;Server&quot; GC via the config file switch seen below:

      &lt;runtime&gt;
        &lt;gcServer enabled=&quot;true&quot;/&gt;
      &lt;/runtime&gt;

Changing this option to false didn&#39;t seem to make a difference. Futhermore, from the reading I&#39;ve done on the new GC in 4.0, the big changes only effect the workstation GC mode, not server GC mode. So perhaps GC has nothing to do with the issue.

Ideas?

Very High Memory Usage in .NET 4.0

I&#39;m writing a custom Authorization Filter for asp.net mvc 3. I need to inject a userservice into the class but I have no idea how to do this.

    public class AuthorizeAttribute : FilterAttribute, IAuthorizationFilter
    {
        private IUserService userService;
        private string[] roles;

        public AuthorizeAttribute(params string[] roles)
        {
            this.roles = roles;
        }

        public void OnAuthorization(AuthorizationContext filterContext)
        {
            throw new NotImplementedException();
        }
    }

I&#39;m using ninject for dependency injection. I do not want to use a Factory or service locator pattern.

My bindings look like this in the global.acsx:

        internal class SiteModule : NinjectModule
        {
            public override void Load()
            {
                Bind&lt;IUserService&gt;().To&lt;UserService&gt;();
            }
        }

Dependency Injection with Ninject and Filter attribute for asp.net mvc

I have a simple actionmethod, that returns some json. It runs on ajax.example.com. I need to access this from another site someothersite.com.

If I try to call it, I get the expected...:

    Origin http://someothersite.com is not allowed by Access-Control-Allow-Origin.

I know of two ways to get around this: [JSONP][1] and creating a [custom HttpHandler][2] to 
set the header.

Is there no simpler way?

Is it not possible for a simple action to either define a list of allowed origins - or simple allow everyone? Maybe an action filter?

Optimal would be...:

    return json(mydata, JsonBehaviour.IDontCareWhoAccessesMe);


  [1]: https://stackoverflow.com/questions/5968682/jquery-ajax-json-cross-domain-request-and-asp-net-mvc
  [2]: http://tpeczek.blogspot.com/2010/09/httphandler-with-cross-origin-resource.html

Setting Access-Control-Allow-Origin in ASP.Net MVC - simplest possible method

What is the asp.net MVC packages.config for?

Do I need items in there to reflect what&#39;s being used within the site/application?

ASP.NET MVC3: What is the packages.config for?

The database is created successfully (as are the tables) but is not seeded. I have spent several hours and read tons of articles but have not been able to get it. Any suggestions?

On a side note, is it possible to call the initializer without having a reference to my DatabaseContext in the client?

I have included all the relevant code I could think of. If anything else would be helpful, please let me know.

Things I&#39;ve Tried:

1. I deleted my connection string (since it defaults to sqlexpress anyways, just the name changed)
2. I changed DropCreateDatabaseIfModelChanges to DropCreateDatabaseAlways, still the same.

Edit: The really weird thing is it worked once, but I have no idea how or why it broke again. I am assuming connection strings, but who knows.

DatabaseInitializer.cs

    public class DatabaseInitializer : DropCreateDatabaseIfModelChanges&lt;DatabaseContext&gt;
    {
      protected override void Seed(DatabaseContext context)
      {
        // Seeding data here
        context.SaveChanges();
      }
    }

DatabaseContext.cs

    public class DatabaseContext : DbContext
    {
      protected override void OnModelCreating(DbModelBuilder mb)
      {
        // Random mapping code
      }

      public DbSet&lt;Entity1&gt; Entities1 { get; set; }
      public DbSet&lt;Entity2&gt; Entities2 { get; set; }

    }
    
Global.asax.cs - Application_Start()

    protected void Application_Start()
    {
      Database.SetInitializer&lt;DatabaseContext&gt;(new DatabaseInitializer());
      AreaRegistration.RegisterAllAreas();
      RegisterGlobalFilters(GlobalFilters.Filters);
      RegisterRoutes(RouteTable.Routes);
    }

Client web.config

    &lt;connectionStrings&gt;
      &lt;add name=&quot;DatabaseContext&quot; connectionString=&quot;data source=.\SQLEXPRESS;Database=Database;Integrated Security=SSPI;&quot; providerName=&quot;System.Data.SqlClient&quot; /&gt;
    &lt;/connectionStrings&gt;

#SOLUTION#

For the sake of documentation, I am sharing my solution here. Navigating all the comments would be a pain anyways. In the end I had DatabaseInitializer and DatabaseContext in separate classes. I don&#39;t really understand while these tiny changes fixed it, but here it is.

DatabaseInitializer.cs

    public class DatabaseInitializer : CreateDatabaseIfNotExists&lt;DatabaseContext&gt;
    {
      protected override void Seed(DatabaseContext context)
      {
        // Seed code here
      }
    }

DatabaseContext.cs

    public class DatabaseContext : DbContext
    {
      public DatabaseContext() : base(&quot;MyDatabase&quot;) { }

      protected override void OnModelCreating(DbModelBuilder mb)
      {
        // Code here
      }
      
      public DbSet&lt;Entity&gt; Entities { get; set; }
      // Other DbSets
    }

Global.asax.cs - Application_Start()

    protected void Application_Start()
    {
      Database.SetInitializer(new DatabaseInitializer());
      AreaRegistration.RegisterAllAreas();
      RegisterGlobalFilters(GlobalFilters.Filters);
      RegisterRoutes(RouteTable.Routes);
    }

    

How can I get my database to seed using Entity Framework CodeFirst?

I am trying to make a very basic REST call to my MVC 3 API and the parameters I pass in are not binding to the action method.

**Client**
    
    var request = new RestRequest(Method.POST);

    request.Resource = &quot;Api/Score&quot;;
    request.RequestFormat = DataFormat.Json;
            
    request.AddBody(request.JsonSerializer.Serialize(new { A = &quot;foo&quot;, B = &quot;bar&quot; }));
            
    RestResponse response = client.Execute(request);
    Console.WriteLine(response.Content);

**Server**

    public class ScoreInputModel
    {
       public string A { get; set; }
       public string B { get; set; }
    }

    // Api/Score
    public JsonResult Score(ScoreInputModel input)
    {
       // input.A and input.B are empty when called with RestSharp
    }

Am I missing something here?

RestSharp JSON Parameter Posting

In ASP.MVC 3, how do I specify the columns and rows for a multiline `EditorFor` (textarea)? I am using `[UIHint(&quot;MultilineText&quot;)]`, but can&#39;t find any documentation on how to add attributes for the text area.

Desired HTML:

     &lt;textarea cols=&quot;40&quot; rows=&quot;10&quot;&gt;&lt;/textarea&gt;


Relevant Part of my MVC 3 Model:

    [UIHint(&quot;MultilineText&quot;)]
    public string Description { get; set; }

Relevant Part of my Razor cshtml:

    &lt;div class=&quot;editor-field&quot;&gt;
        @Html.EditorFor(model =&gt; model.Description)
    &lt;/div&gt;

What I&#39;m getting in View Source:

     &lt;div class=&quot;editor-field&quot;&gt;
         &lt;textarea class=&quot;text-box multi-line&quot; id=&quot;Description&quot; name=&quot;Description&quot;&gt;&lt;/textarea&gt;
     &lt;/div&gt;

How do I set rows and columns?


How do I specify the columns and rows of a multiline Editor-For in ASP.MVC?

When I want a specific menu link to be active at a given page, I&#39;m using this approach in Razor:

On the master layout I have these checks:

    var active = ViewBag.Active;
    const string ACTIVE_CLASS = &quot;current&quot;;
    
    if (active == &quot;home&quot;)
    {
    	ViewBag.ActiveHome = ACTIVE_CLASS;
    }
    if (active == &quot;products&quot;)
    {
    	ViewBag.ActiveProducts = ACTIVE_CLASS;
    }

etc.

The html menu on the master layout:

    &lt;ul&gt;
    &lt;li class=&quot;@ViewBag.ActiveHome&quot;&gt;&lt;a href=&quot;/&quot;&gt;Home&lt;/a&gt;&lt;/li&gt;
    &lt;li class=&quot;@ViewBag.ActiveProducts&quot;&gt;&lt;a href=&quot;@Url.Action(&quot;index&quot;, &quot;products&quot;)&quot;&gt;Products&lt;/a&gt;&lt;/li&gt;
    &lt;/ul&gt;

When specifying which layout page to use on a different view:

    @{
    	ViewBag.Active = &quot;home&quot;;
    	Layout = &quot;~/Views/Shared/_Layout.cshtml&quot;;
    }

Is there a better approach to sepcify active links, than the one I&#39;m currently using?

Better way to get active page link in MVC 3 Razor

I understand that in Razor, @Html does a bunch of neat things, like generate HTML for links, inputs, etc.

But I don&#39;t get the DisplayFor function...

Why would I write:

    @Html.DisplayFor(model =&gt; model.Title)

when I could just write:

    @Model.Title



What is the @Html.DisplayFor syntax for?

I added a cshtml page in an project. When I tried to add the following declaration to it, I get an error: &quot;The name &#39;model&#39; does not exist in current context&quot;.

    @model xyz.abc.SomeClass

I checked the references, all of them are in place. I added a web.config in view folder, but that didn&#39;t fix it.

Is there anything i am missing?


The name &#39;model&#39; does not exist in current context in MVC3

Okay, so I want to display a list containing lists of lists of lists...

I have no way of knowing how many levels there are to display, so I figured this is where I break out the old recursive routine.

I&#39;m having trouble with exactly how to go about this though.

This is what I have so far (in view - simplified):

    @foreach(MyObject item in @Model.ListOfObjects){ 
        &lt;div&gt; @item.Title &lt;/div&gt;
        //Call recursive function?
    }

Now each of these objects also have a List&amp;lt;MyObject&gt;. I want to display each level below this div, with a tab indent per level for instance.

I was thinking a Razor function would be the thing to do here, but I need some help in forming it. Here&#39;s my thinking:

    @functions{
        public static void ShowSubItems(MyObject _object){
             if(_object.ListOfObjects.Count&gt;0){
                 foreach(MyObject subItem in _object.listOfObjects){

                     // Show subItem in HTML
                     ShowSubItems(subItem);
                 }
             }
         }
     }

But as you can see, I plainly need some help :)





Content Type	Original Author	Original Content on Stackoverflow
Question	Marta	View Question on Stackoverflow
Solution 1 - .Net	Darin Dimitrov	View Answer on Stackoverflow
Solution 2 - .Net	sophievda	View Answer on Stackoverflow

Current Year in ASP.NET MVC 3

.Net Problem Overview

.Net Solutions

Solution 1 - .Net

Solution 2 - .Net

Really, a concrete example that merging in Git is easier than SVN?

Thread safe logging class implementation

Attributions