I haven&#39;t personally tried it, but according to [this][1], you only need:

    subject = subject.Replace(&#39;\r&#39;, &#39; &#39;).Replace(&#39;\n&#39;, &#39; &#39;);

or something equivalent.

Internally, the `MailMessage` class will check the subject with:

    if (value != null &amp;&amp; MailBnfHelper.HasCROrLF(value)) 
    {
       throw new ArgumentException(SR.GetString(SR.MailSubjectInvalidFormat));
    }

So the only limitation (for now) happens to be the presence of `CR` or `LF`.

  [1]: http://blog.dotsmart.net/2008/02/15/systemnetmail-the-specified-string-is-not-in-the-form-required-for-a-subject/

Also there is a limit of 168 characters so you should check for that too.

UPDATE: sorry this is complete bullshit :)
It must have been a line break in my case. 

For VB.NET

    subject = subject.Replace(vbNewLine, &quot;&quot;)

I know this has already answered, but it goes:

First, you need to trim the subject then account for the subject max length (https://stackoverflow.com/questions/1592291/what-is-the-email-subject-length-limit):

    subject = subject.Trim();
    subject = subject.Substring(0, Math.Min(subject.Length, 78));

This will remove any new lines or empty spaces at the beginning and the end. Then Substring is used to restrict the subject length.

So I&#39;ve created a new ASP.NET MVC project using the intranet template. web.config contains the appropriate values (e.g. `&lt;authentication mode=&quot;windows&quot;/&gt;`).

If I fire up the web app using the VS webserver, it all looks fine - the page shows my Windows domain and username and all. However, this works in Opera and Safari as well as IE and FF, which says to me it&#39;s not using Windows auth at all (since to the best of my knowledge this doesn&#39;t work in any browser except IE/FF).

Next step is to get it working through local IIS. I create a hosts file entry pointing www.mysite.mydomain to 127.0.0.1. So in IIS I create website with a binding to www.mysite.mydomain and enable Windows authentication and disable anonymous authentication.

I have set up IE and FF to enable Windows auth as follows:

**IE**

 1. Add URL to intranet group
 2. Ensure Windows auth is enabled in the advanced settings

**FF**

 Put &#39;www.mysite.mydomain&#39; into network.automatic-ntlm-auth.trusted-uris config setting.

But when I dial up www.mysite.mydomain in IE / FF I get a login prompt. Interestingly, even when I type in my Windows login here, it still fails and shows me the login prompt again.

We don&#39;t have active directory here but my understanding is that it should work fine with a local account.

I can&#39;t think of anything else I need to do. Any suggestions?

Edit: we&#39;ve recently switched to using Active Directory and the problem remains.

Edit: when I cancel the login prompt, I get taken to an &#39;IIS 7.5 Detailed Error&#39; page with the following information:

&gt;HTTP Error 401.2 - Unauthorized
You are not authorized to view this page due to invalid authentication headers.**

Unable to get windows authentication to work through local IIS

I would like to write a method similar to this:

    +(void)myMethodWithView:(UIView *)exampleView completion:(void (^)(BOOL finished))completion;

I&#39;ve basically stripped down the syntax taken from one of Apple&#39;s class methods for `UIView`: 

    + (void)animateWithDuration:(NSTimeInterval)duration delay:(NSTimeInterval)delay options:(UIViewAnimationOptions)options animations:(void (^)(void))animations completion:(void (^)(BOOL finished))completion;

And would expect it to be used like so:

    [myFoo myMethodWithView:self.view completion:^(BOOL finished){
    					 NSLog(@&quot;call back success&quot;);
    				 }];

My question is how can I implement this?  If someone can point me to the correct documentation that would be great, and a very basic example would be much appreciated (or a similar answer on Stack Overflow -- I couldn&#39;t find one). I still don&#39;t quite know enough about delegates to determine whether that is even the correct approach!

I&#39;ve put a rough example of what I would have expected it to be in the implementation file, but as I can&#39;t find info it&#39;s guess work.

    + (void)myMethod:(UIView *)exampleView completion:(void (^)(BOOL finished))completion {
    	// do stuff
    	
    	if (completion) {
    		// what sort of syntax goes here? If I&#39;ve constructed this correctly!
    	}
    	
    }

Implementing a method taking a block to use as callback

I have a class that sends an Email (MailMessage) but I get the following error:

&gt; &quot;The specified string is not in the form required for a subject.&quot;

Is there a handy dandy method to sanitize the strings or do I have to write my own?

Resolving &#39;The specified string is not in the form required for a subject.&#39;

I have a class that sends an Email (MailMessage) but I get the following error:
> "The specified string is not in the form required for a subject."
Is there a handy dandy method to sanitize the strings or do I have to write my own?

What does `GetHashCode()` calculate when invoked on the `byte[]` array?
The 2 data arrays with equal content do not provide the same hash.

GetHashCode() on byte[] array

I have  the  line in vb code:

    #if Not Debug

which I must convert, and I don&#39;t see it in c#? 

Is there something equivalent to it, or is there some workaround?

#if Not Debug in c#?

&gt; **Possible Duplicate:**  
&gt; [C# - Is there a better alternative than this to &amp;#39;switch on type&amp;#39;?](https://stackoverflow.com/questions/298976/c-sharp-is-there-a-better-alternative-than-this-to-switch-on-type)  

&lt;!-- End of automatically inserted text --&gt;

Hello suppose i get a big if/else on class type. it&#39;s there a way to do it with a switch case ?

Example :

    function test(object obj)
    {
    if(obj is WebControl)
    {
    
    }else if(obj is TextBox)
    {
    
    }
    else if(obj is ComboBox)
    {
    
    }


etc ...

I would like to create something like 

    switch(obj)
    {
    case is TextBox:
    break;
    case is ComboBox:
    break;
    
    }


}

Switch case on type c#

I have this code :

    stringCutted = myString.Split(&quot;/&quot;). // ???

and I&#39;d like to store in `stringCutted` the last element of the `string[]` after the split, directly, quickly, without storing the splitted array in a variable and access to that element with `array[array.length]`.

Is this possible in C#?

Select last element quickly after a .Split()

Imagine I have defined the following Enum:

    public enum Status : byte
    {
        Inactive = 1,
        Active = 2,
    }

What&#39;s the best practice to use enum? Should it start with `1` like the above example or start with `0` (without the explicit values) like this:

    public enum Status : byte
    {
        Inactive,
        Active
    }

Should an Enum start with a 0 or a 1?

Anyone have any idea how to go about resolving this error? This is happening on my live server, but when i run the project local pc or different server there is no error


&gt; Server Error in &#39;/&#39; Application. Request timed out. Description: An
&gt; unhandled exception occurred during the execution of the current web
&gt; request. Please review the stack trace for more information about the
&gt; error and where it originated in the code.
&gt; 
&gt; Exception Details: System.Web.HttpException: Request timed out.
&gt; 
&gt; **Source Error:**
&gt; 
&gt; An unhandled exception was generated during the execution of the
&gt; current web request. Information regarding the origin and location of
&gt; the exception can be identified using the exception stack trace below.
&gt; 
&gt; **Stack Trace:**
&gt; 
&gt; &gt; [HttpException (0x80004005): Request timed out.]



System.Web.HttpException: Request timed out

I have an ASP.net application that uses a cookie to store the user selected language.
Everything works fine except when I&#39;m on localhost.
Replacing localhost by 127.0.0.1 makes it work again... why?

I saw intended restrictions to file:// but I can&#39;t actually find any reference to intended restriction to localhost.

What I can&#39;t really understand is why the ASP.net Session (ASP.NET_SessionId) and ASP.net Forms Authentication Cookies (.FSAUTHSSO) are correctly set for the localhost domain but my cookies aren&#39;t... why?!

I already googled a lot and nothing works:

 - Setting the Chrome command line flag --enable-file-cookies [DOES NOT
   WORK]
 - Setting the cookie to HttpOnly [DOESN&#39;T MATTER]
 - Changing Expiration to Session or to a Date... [DOESN&#39;T MATTER]
 - Changing the Cookie Path to Root (/) or to anything else [DOESN&#39;T MATTER]

So what does matter? :)

And why can the ASP.net cookies be set and mine don&#39;t? What&#39;s the difference?

Last thing just to mention that this also happens on IE but works fine on FF.

Thanks!

Alex

Chrome localhost cookie not being set

I&#39;ve searched and searched on Google, and I can&#39;t find anything that even seems applicable to my situation, let alone solves the problem. It doesn&#39;t matter which address in my website I try to navigate to (even addresses that don&#39;t exist give this error instead of a 404), I get the exact same message (the path is always &#39;/&#39;). Any ideas?


&lt;!-- language: none --&gt;

    Server Error in &#39;/&#39; Application.
    
    Failed to map the path &#39;/&#39;.
    
    Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 
    
    Exception Details: System.InvalidOperationException: Failed to map the path &#39;/&#39;.
    
    Source Error: 
    
    An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
    
    Stack Trace: 
    
    
    [InvalidOperationException: Failed to map the path &#39;/&#39;.]
       System.Web.HttpRuntime.HostingInit(HostingEnvironmentFlags hostingFlags, PolicyLevel policyLevel, Exception appDomainCreationException) +336
    
    [HttpException (0x80004005): Failed to map the path &#39;/&#39;.]
       System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +11556592
       System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +141
       System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +4813333
    
    Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.225


**UPDATE:** I went back to the site a few minutes after posting this--made no changes to code or configuration--and the error went away. I&#39;m really baffled, but it is no longer a problem.

How to solve error message: &quot;Failed to map the path &#39;/&#39;.&quot;

I receive this error when I view an application.

&gt;HTTP Error 500.22 - Internal Server Error (An ASP.NET setting has been detected that does not apply in Integrated managed pipeline mode.)

.Net framework 2.0, 3.5 and 4 are installed and I am using SQL 2008. Can anyone tell me what the solution is for this error?

HTTP Error 500.22 - Internal Server Error (An ASP.NET setting has been detected that does not apply in Integrated managed pipeline mode.)

I want to write a little helper method which returns the base URL of the site. This is what I came up with:

    public static string GetSiteUrl()
    {
        string url = string.Empty;
        HttpRequest request = HttpContext.Current.Request;
    
        if (request.IsSecureConnection)
            url = &quot;https://&quot;;
        else
            url = &quot;http://&quot;;
     
        url += request[&quot;HTTP_HOST&quot;] + &quot;/&quot;;
    
        return url;
    }

Is there any mistake in this, that you can think of? Can anyone improve upon this?

How can I get the baseurl of site?

I have multiple email recipients stored in SQL Server. When I click send in the webpage it should send email to all recipients. I have separated emails using `;`.

Following is the single recipient code.

    MailMessage Msg = new MailMessage();
    MailAddress fromMail = new MailAddress(fromEmail);
    Msg.From = fromMail;
    Msg.To.Add(new MailAddress(toEmail));

    if (ccEmail != &quot;&quot; &amp;&amp; bccEmail != &quot;&quot;)
    {
        Msg.CC.Add(new MailAddress(ccEmail));
        Msg.Bcc.Add(new MailAddress(bccEmail));
    }

    SmtpClient a = new SmtpClient(&quot;smtp server name&quot;);
    a.Send(Msg);
    sreader.Dispose();

Content Type	Original Author	Original Content on Stackoverflow
Question	Matt	View Question on Stackoverflow
Solution 1 - C#	Christian.K	View Answer on Stackoverflow
Solution 2 - C#	mike nelson	View Answer on Stackoverflow
Solution 3 - C#	Clarice Bouwer	View Answer on Stackoverflow
Solution 4 - C#	Weggo	View Answer on Stackoverflow

Resolving 'The specified string is not in the form required for a subject.'

C# Problem Overview

C# Solutions

Solution 1 - C#

Solution 2 - C#

Solution 3 - C#

Solution 4 - C#

Implementing a method taking a block to use as callback

Unable to get windows authentication to work through local IIS

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