If you want to round to the **nearest** int:

    int rounded = (int)Math.Round(precise, 0);

You can also use:

    int rounded = Convert.ToInt32(precise);

Which will use `Math.Round(x, 0);` to round and cast for you. It looks neater but is slightly less clear IMO.


----------
If you want to round **up**:

    int roundedUp = (int)Math.Ceiling(precise);

Off the top of my head:

    float fl = 0.678;
    int rounded_f = (int)(fl+0.5f);

The easiest is to just add `0.5f` to it and then cast this to an int. 

&gt; Do I use one of these then cast to an Int?

Yes. There is no problem doing that. Decimals and doubles can represent integers exactly, so there will be no representation error. (You won&#39;t get a case, for instance, where Round returns 4.999... instead of 5.)

You can cast to an int provided you are sure it&#39;s in the range for an int (Int32.MinValue to Int32.MaxValue).

In elisp, there is an &#39;if&#39; case where I would like to perform many different things:

    (if condition
        (do-something)
        (do-something-else)
        ...)

However, (do-something-else) is executed in the else-case only.  How can you specify a block of instructions to execute?  For example:

    (if condition
        (begin
            (do-something)
            (do-something-else)
            ...))

How can you write multiple statements in elisp &#39;if&#39; statement?

I am trying to read a image file (.jpeg to be exact), and &#39;echo&#39; it back to the page output, but have is display an image...

my index.php has an image link like this:

    &lt;img src=&#39;test.php?image=1234.jpeg&#39; /&gt;

and my php script does basically this:

1) read 1234.jpeg
2) echo file contents...
3) I have a feeling I need to return the output back with a mime-type, but this is where I get lost

Once I figure this out, I will be removing the file name input all together and replace it with an image id.

If I am unclear, or you need more information, please reply.

Return a PHP page as an image

In C#, how do I round a float upwards to the nearest int?

I see Math.Ceiling and Math.Round, but these returns a decimal.  Do I use one of these then cast to an Int?



How do I round a float upwards to the nearest int in C#?

<p>In C#, how do I round a float upwards to the nearest int?</p>
<p>I see Math.Ceiling and Math.Round, but these returns a decimal.  Do I use one of these then cast to an Int?</p>


What is the difference between KeyValuePair which is the generic version and DictionaryEntry?

Why KeyValuePair is used instead of DictionaryEntry in generic Dictionary class?


KeyValuePair VS DictionaryEntry

What is an example (simple code) of how to zip a folder in C#?

----

Update:

I do not see namespace `ICSharpCode`. I downloaded `ICSharpCode.SharpZipLib.dll` but I do not know where to copy that DLL file. What do I need to do to see this namespace?

And do you have link for that MSDN example for compress folder, because I read all MSDN but I couldn&#39;t find anything.

---

OK, but I need next information.

Where should I copy `ICSharpCode.SharpZipLib.dll` to see that namespace in Visual Studio?


Zip folder in C#

I&#39;m having a hard time finding a good resource that explains how to use Named Capturing Groups in C#.  This is the code that I have so far:

    string page = Encoding.ASCII.GetString(bytePage);
    Regex qariRegex = new Regex(&quot;&lt;td&gt;&lt;a href=\&quot;(?&lt;link&gt;.*?)\&quot;&gt;(?&lt;name&gt;.*?)&lt;/a&gt;&lt;/td&gt;&quot;);
    MatchCollection mc = qariRegex.Matches(page);
    CaptureCollection cc = mc[0].Captures;
    MessageBox.Show(cc[0].ToString());

However this always just shows the full line:

    &lt;td&gt;&lt;a href=&quot;/path/to/file&quot;&gt;Name of File&lt;/a&gt;&lt;/td&gt; 

I have experimented with several other &quot;methods&quot; that I&#39;ve found on various websites but I keep getting the same result.

How can I access the named capturing groups that are specified in my regex?



How do I access named capturing groups in a .NET Regex?

is there a way to retrieve type `T` from `IEnumerable&lt;T&gt;` through reflection?

e.g.

i have a variable `IEnumerable&lt;Child&gt;` info; i want to retrieve Child&#39;s type through reflection



getting type T from IEnumerable&lt;T&gt;

is there a good and free implementation of CSV parser available under some liberal licence? Some counterpart of [SuperCSV][1] for Java, perhaps a port?


  [1]: http://supercsv.sourceforge.net/

CSV parser/reader for C#?

a lot of people have answered the question of how to bind an enum to a combo box in WinForms. Its like this:

    comboBox1.DataSource = Enum.GetValues(typeof(MyEnum));

But that is pretty useless without being able to set the actual value to display.

I have tried:

    comboBox1.SelectedItem = MyEnum.Something; // Does not work. SelectedItem remains null

I have also tried:

    comboBox1.SelectedIndex = Convert.ToInt32(MyEnum.Something); // ArgumentOutOfRangeException, SelectedIndex remains -1

Does anyone have any ideas how to do this?

Binding an enum to a WinForms combo box, and then setting it

How to get the applications installed in the system using c# code?

Get installed applications in a system

Looking for a list of Windows versions (service packs included) and what version of .NET is natively&lt;sup&gt;1&lt;/sup&gt; available. 

Example:  

Windows A - .NET Framework Z  
Windows A Service Pack 1 - .NET Framework Z  
Windows A Service Pack 2 - .NET Framework Y

---
&lt;sup&gt;1&lt;/sup&gt; By natively I mean that is there with no installs done.


What version of .NET ships with what version of Windows?

In `AssemblyInfo` there are two assembly versions:

 1. `AssemblyVersion`: Specify the version of the assembly being attributed.
 2. `AssemblyFileVersion`: Instructs a compiler to use a specific version number for the Win32 file version resource. The Win32 file version is not required to be the same as the assembly&#39;s version number.

I can get the `Assembly Version` with the following line of code:

    Version version = Assembly.GetEntryAssembly().GetName().Version;

But how can I get the `Assembly File Version`?

How can I get the assembly file version

In C#, the result of `Math.Round(2.5)` is 2.

It is supposed to be 3, isn&#39;t it? Why is it 2 instead in C#?

Why does Math.Round(2.5) return 2 instead of 3?

Once in a while, I find myself rounding some numbers, and I always have to cast the result to an integer:

    int rounded = (int) floor(value);

Why do all rounding functions (`ceil()`, `floor()`) return a floating number, and not an integer? I find this pretty non-intuitive, and would love to have some explanations!

Why do round() and ceil() not return an integer?

I&#39;m making a program that, for reasons not needed to be explained, requires a float to be converted into a string to be counted with len(). However, str(float(x)) results in x being rounded when converted to a string, which throws the entire thing off. Does anyone know of a fix for it?
Here&#39;s the code being used if you want to know:

    len(str(float(x)/3))

Converting a float to a string without rounding it

How can I round down a number in JavaScript?

`math.round()` doesn&#39;t work because it rounds it to the nearest decimal. 

I&#39;m not sure if there is a better way of doing it other than breaking it apart at the decimal point at keeping the first bit. There must be...

How can I round down a number in Javascript?

I need to round a double to nearest five. I can&#39;t find a way to do it with the Math.Round function. How can I do this?

What I want:

    70 = 70
    73.5 = 75
    72 = 70
    75.9 = 75
    69 = 70

and so on..

Is there an easy way to do this?

Content Type	Original Author	Original Content on Stackoverflow
Question	Axajian	View Question on Stackoverflow
Solution 1 - C#	Matt Brindley	View Answer on Stackoverflow
Solution 2 - C#	Mike Tunnicliffe	View Answer on Stackoverflow
Solution 3 - C#	joshcomley	View Answer on Stackoverflow
Solution 4 - C#	JulianR	View Answer on Stackoverflow
Solution 5 - C#	dan-gph	View Answer on Stackoverflow
Solution 6 - C#	Joe	View Answer on Stackoverflow

How do I round a float upwards to the nearest int in C#?

C# Problem Overview

C# Solutions

Solution 1 - C#

Solution 2 - C#

Solution 3 - C#

Solution 4 - C#

Solution 5 - C#

Solution 6 - C#

Return a PHP page as an image

How can you write multiple statements in elisp 'if' statement?

Attributions