You answered your own question&amp;mdash;Just cast it to a double:

    decimal x  = 3.141592654M ;
    double  pi = (double) x ;



You can use decimal&#39;s built in converter.
    
    decimal decimalValue = 5; 
    double doubleValue = decimal.ToDouble(decimalValue);

Just Try 

    Decimal yourDecimal = 3.222222m;
    
    Convert.ToDouble(yourDecimal);

What is the simplest way to convert a JodaTime [`LocalDate`][1] to [`java.util.Date`][2] object?


  [1]: http://www.joda.org/joda-time/apidocs/org/joda/time/LocalDate.html
  [2]: http://download.oracle.com/javase/6/docs/api/java/util/Date.html

How to convert Joda LocalDate to java.util.Date?

What is the use of the `postInvalidate()` function in Android? I have been seeing this function in a lot of places. When I Googled, I came out with this much:

&gt; postInvalidate-- *post an invalidate request on the UI-thread*

I don&#39;t know what the phrase &quot;invalidate request&quot; there means. Can someone explain in detail what is happening here?

What does postInvalidate() do?

I have a variable which is storing as decimal:

    decimal firststYrComp = Int16.Parse(tb1stYr.Text.ToString());

Now I have this to get typecasted into Double? How do I do that? Thanks!

Converting Decimal to Double in C#?

I have a variable which is storing as decimal:
<pre><code class="hljs language-ini">decimal firststYrComp = Int16.Parse(tb1stYr.Text.ToString());
</code></pre>
Now I have this to get typecasted into Double? How do I do that? Thanks!

I have a C# application that must run in x64 mode.  The problem is I try to create unit tests that run methods in the x64 application and the unit test project won&#39;t even build.  I get the following error when it tries to build.

&gt; Error loading C:\.....\bin\x64\Debug\....UnitTests.dll: Unable to load
&gt; the test container &#39;C:\.....\bin\x64\Debug\....UnitTests.dll&#39; or one
&gt; of its dependencies. If you build your test project assembly as a 64
&gt; bit assembly, it cannot be loaded. When you build your test project
&gt; assembly, select &quot;Any CPU&quot; for the platform. To run your tests in 64
&gt; bit mode on a 64 bit processor, you must change your test settings in
&gt; the Hosts tab to run your tests in a 32 bit process. Error details:
&gt; Could not load file or assembly
&gt; &#39;file:///C:\.....UnitTests\bin\x64\Debug\....UnitTests.dll&#39; or one of
&gt; its dependencies. An attempt was made to load a program with an
&gt; incorrect format.

I have tried to change the unit test to x64 and also Any CPU and still cannot get it to run.  Is there any fix for this?

How do I get unit tests to run on a x64 platform

I found this code to swap two numbers without using a third variable, using the XOR `^` operator.

**Code:**  

    int i = 25;
    int j = 36;
    j ^= i;       
    i ^= j;
    j ^= i;
            
    Console.WriteLine(&quot;i:&quot; + i + &quot; j:&quot; + j);
    
    //numbers Swapped correctly
    //Output: i:36 j:25

Now I changed the above code to this equivalent code.

**My Code:** 

    int i = 25;
    int j = 36;

    j ^= i ^= j ^= i;   // I have changed to this equivalent (???).

    Console.WriteLine(&quot;i:&quot; + i + &quot; j:&quot; + j);
    
    //Not Swapped correctly            
    //Output: i:36 j:0

Now, I want to know, **Why does my code give incorrect output?**

Why does swapping values with XOR fail when using this compound form?

I have searched this online, but I can&#39;t find the answer I am looking for. 

Basically I have the following enum:

    public enum typFoo : int
    {
       itemA : 1,
       itemB : 2
       itemC : 3
    }

How can I convert this enum to Dictionary so that it stores in the following Dictionary?

    Dictionary&lt;int,string&gt; myDic = new Dictionary&lt;int,string&gt;();

And myDic would look like this:

    1, itemA
    2, itemB
    3, itemC

Any ideas?


Enum to Dictionary in C#

I have a Silverlight 4 application. I have a C# DateTime object that I&#39;m binding to my UI. I want this DateTime to be in the format of `dd/mm/yyyy` time (TimeZone). For instance, today would be displayed as

    04/07/2011 at 01:13 p.m. (EST)

Is there a way to do this `XAML`? Or do I need to build a converter?

Format Date/Time in XAML in Silverlight

I understand that in general a List is not thread safe, however is there anything wrong with simply adding items into a list if the threads never perform any other operations on the list (such as traversing it)?

Example:

	List&lt;object&gt; list = new List&lt;object&gt;();
	Parallel.ForEach(transactions, tran =&gt;
	{
		list.Add(new object());
	});

List.Add() thread safety

How can I implement an array with an indexer in JavaScript? Is there something like a dictionary in .Net?

Is there a dictionary implementation in JavaScript?

I know this question has been asked, at least [here][1].

But there wasn&#39;t a satisfactory answer, at least not to me. There is a lot of talk about marshalling as regards interoperating with unmanaged code, but what about marshalling from one thread to another, as we have to do in .NET sometimes.

This makes me ask, what is marshalling, really? When you give a definition of marshalling, how would you define it so that it is explaining the case of interoperability, as well as the cases where you are &quot;marshalling&quot; between threads?


  [1]: https://stackoverflow.com/questions/2240804/marshalling-what-is-it-and-why-do-we-need-it

What is marshalling? What is happening when something is &quot;marshalled?&quot;

Can anyone help me with a `Count` extension method for `IEnumerable` (non generic interface).

I know it is not supported in LINQ but how to write it manually?

Calculating Count for IEnumerable (Non Generic)

I&#39;ve got an asp.net mvc deployment package that I&#39;m trying to build with team city. The package builds without any problems, but the bin folder contains file that are not needed (and cause the site to fail when present). 

If I build the same package from visual studio the additional files are not present.

The additional files are:

    Microsoft.VisualBasic.Activities.Compiler.dll
    mscorlib.dll
    normidna.nlp
    normnfc.nlp
    normnfd.nlp
    normnfkc.nlp
    normnfkd.nlp
    System.Data.dll
    System.Data.OracleClient.dll
    System.EnterpriseServices.dll
    System.EnterpriseServices.Wrapper.dll
    System.Transactions.dll
     
What can I do to prevent these additional assemblies and .nlp files from being included in the package?

**UPDATE**

After a bit more digging through log files I&#39;ve found that the `_CopyFilesMarkedCopyLocal` build task is copying the files into the bin directory. The odd thing is that the assemblies are not marked as copy local.

Why does the deployment package from my buildserver have additional assemblies?

This is what I did to round a double to 2 decimal places:

    amount = roundTwoDecimals(amount);

    public double roundTwoDecimals(double d) {
        DecimalFormat twoDForm = new DecimalFormat(&quot;#.##&quot;);
		return Double.valueOf(twoDForm.format(d));
    }

This works great if the amount = 25.3569 or something like that, but if the amount = 25.00 or the amount = 25.0, then I get 25.0!  What I want is both rounding as well as formatting to 2 decimal places. 

How do I round a double to two decimal places in Java?

How can I convert a `String` such as `&quot;12.34&quot;` to a `double` in Java?


Convert String to double in Java

AFAIK, C supports just a few data types:

    int, float, double, char, void enum.

I need to store a number that could reach into the high 10 digits.  Since I&#39;m getting a low 10 digit # from 

&gt; INT_MAX

, I suppose I need a double.

`&lt;limits.h&gt;` doesn&#39;t have a `DOUBLE_MAX`.  I found a `DBL_MAX` on the internet that said this is LEGACY and also appears to be C++.  Is double what I need?  Why is there no `DOUBLE_MAX`?

How do I get DOUBLE_MAX?

I have a variable like that:

    List&lt;Double&gt; frameList =  new ArrayList&lt;Double&gt;();
    
    /* Double elements has added to frameList */

How can I have a new variable has a type of `double[]` from that variable in Java with high performance?

How to cast from List&lt;Double&gt; to double[] in Java?

When dealing with real world monetary values, I am advised to use BigDecimal instead of Double.But I have not got a convincing explanation except, &quot;It is normally done that way&quot;.

Can you please throw light on this question?

Java:Why should we use BigDecimal instead of Double in the real world?

I have a function here that converts decimal to hex but it prints it in reverse order. How would I fix it?

    def ChangeHex(n):
        if (n &lt; 0):
            print(0)
        elif (n&lt;=1):
            print(n)
        else:
            x =(n%16)
            if (x &lt; 10):
                print(x), 
            if (x == 10):
                print(&quot;A&quot;),
            if (x == 11):
                print(&quot;B&quot;),
            if (x == 12):
                print(&quot;C&quot;),
            if (x == 13):
                print(&quot;D&quot;),
            if (x == 14):
                print(&quot;E&quot;),
            if (x == 15):
                print (&quot;F&quot;),
            ChangeHex( n / 16 )

Python convert decimal to hex

How does one cast a `double` to `decimal` which is used when doing currency development. Where does the `M` go?
    
    decimal dtot = (decimal)(doubleTotal);

Cast a Double Variable to Decimal

How can we convert a JavaScript string variable to decimal?

Is there a function such as: 

    parseInt(document.getElementById(amtid4).innerHTML)

convert a JavaScript string variable to decimal/money

I have seen that some browsers localize the `input type=&quot;number&quot;` notation of numbers. 

So now, in fields where my application displays longitude and latitude coordinates, I get stuff like &quot;51,983&quot; where it should be &quot;51.982559&quot;. My workaround is to use `input type=&quot;text&quot;` instead, but I&#39;d like to use the number input with correct display of decimals.

Is there a way to **force browsers to use a decimal point** in the number input, regardless of client-side local settings?

(It goes without saying that in my application I anyway correct this on the server side, but in my setup I also need it to be correct on the client side (because of some JavaScript)).

Thanks in advance.

***UPDATE***
As of right now, checking in Chrome Version 28.0.1500.71 m on Windows 7, the number input just does not accept decimals formatted with a comma. Proposed suggestions with the `step`attribute do not seem to work.

http://jsfiddle.net/AsJsj/

Force decimal point instead of comma in HTML5 number input (client-side)

Is there an easy way or integrated function to find out the decimal places of a floating point number?

The number is parsed from a string, so one way is to count the digits after the `.` sign, but that looks quite clumsy to me. Is there a possibility to get the information needed out of a `float` or `Decimal` object?

Content Type	Original Author	Original Content on Stackoverflow
Question	RG-3	View Question on Stackoverflow
Solution 1 - C#	Nicholas Carey	View Answer on Stackoverflow
Solution 2 - C#	Chuck Savage	View Answer on Stackoverflow
Solution 3 - C#	anishMarokey	View Answer on Stackoverflow

Converting Decimal to Double in C#?

C# Problem Overview

C# Solutions

Solution 1 - C#

Solution 2 - C#

Solution 3 - C#

What does postInvalidate() do?

How to convert Joda LocalDate to java.util.Date?

Attributions