[`FileInfo.LastWriteTime`][1] 
and 
[`FileInfo.LastWriteTimeUtc`][2] should register this information.      


  [1]: http://msdn.microsoft.com/en-us/library/system.io.filesysteminfo.lastwritetime.aspx
  [2]: http://msdn.microsoft.com/en-us/library/system.io.filesysteminfo.lastwritetimeutc.aspx

    string strFilePath = @&quot;C:\myfile.txt&quot;;
    DateTime lastModified = System.IO.File.GetLastWriteTime(strFilePath);

**Reference:**  `File.GetLastWriteTime` on [MSDN][1].


  [1]: http://msdn.microsoft.com/en-us/library/system.io.file.getlastwritetime.aspx

Try This.

    FileInfo fileInfo = new FileInfo(&quot;path&quot;);
    var created = fileInfo.CreationTime; //File Creation
    var lastmodified = fileInfo.LastWriteTime;//File Modification

How can I make the development server from django running permanent? So that it does&#39;t stop when I quit the shell.

Thanks

Django runserver permanent

is there any measurably performance difference between

    ((TypeA) obj).method1();
    ((TypeA) obj).method2();
    ((TypeA) obj).method3();

and

    var A = (TypeA) obj;
    A.method1();
    A.method2();
    A.method3();

when used alot of times?

I often see something like

    if (((TextBox)sender).Text.Contains(&#39;.&#39;) || ((TextBox)sender).Text.Contains(&#39;,&#39;))

and wonder if this is a waste of performance. 



Performance of TypeCasting

I make a file in PC, and I want to transfer it to a [PPC][1] ([Windows Mobile][2]).

How can I get the modified date of this file?

(I need it on Windows Mobile.)

  [1]: https://en.wikipedia.org/wiki/Pocket_PC
  [2]: https://en.wikipedia.org/wiki/Windows_Mobile


How do I get modified date from file in C# on Windows Mobile?

I make a file in PC, and I want to transfer it to a <a href="https://en.wikipedia.org/wiki/Pocket_PC" target="_blank" rel="noopener noreferrer">PPC</a> (<a href="https://en.wikipedia.org/wiki/Windows_Mobile" target="_blank" rel="noopener noreferrer">Windows Mobile</a>).
How can I get the modified date of this file?
(I need it on Windows Mobile.)

I have a variable which I am using to represent state. It can be read and written to from multiple threads.

I am using `Interlocked.Exchange` and `Interlocked.CompareExchange` to change it. However I am reading it from multiple threads.

I know that `volatile` can be used to make sure the variable is not cached locally but always reads directly from memory.

However if I set the variable to volatile then it generates a warning about using volatile and passing using ref to the Interlocked methods.

I want to ensure that each thread is reading the most recent value of the variable and not some cached version, but I can&#39;t use volatile.

There is a `Interlocked.Read`  but it is for 64 bit types and is not available on the compact framework. The documentation for it says that it is not needed for 32 bit types as they are already performed in a single operation.

There are statements made across the internet that you don&#39;t need volatile if you are using the Interlocked methods for all your access. However you can&#39;t read a 32 bit variable using the Interlocked methods, so there is no way you can use Interlocked methods for all your access.

Is there some way to accomplish the thread safe read and write of my variable without using lock?

Interlocked and volatile

I have a string I am writing to the outputstream of the response. After I save this document and open it in Notepad++ or WordPad I get nicely formatted line breaks where they are intended, but when I open this document with the regular old Windows Notepad, I get one long text string with □ (square like symbols) where the line breaks should be.

Has anyone had any experience with this?

C# Encoding a text string with line breaks

The StreamWriter.Close() says it also closes the underlying stream of the StreamWriter. What about StreamWriter.Dispose ? Does Dispose also dispose and/or close the underlying stream

Does .Disposing a StreamWriter close the underlying stream?

I would like to take the original URL, truncate the query string parameters, and return a cleaned up version of the URL. I would like it to occur across the whole application, so performing through the global.asax would be ideal. Also, I think a 301 redirect would be in order as well.

ie.

in: www.website.com/default.aspx?utm_source=twitter&amp;utm_medium=social-media

out: www.website.com/default.aspx


What would be the best way to achieve this?



Truncating Query String &amp; Returning Clean URL C# ASP.net

Can extension methods be applied to the class?

For example, extend DateTime to include a Tomorrow() method that could be invoked like:

    DateTime.Tomorrow();

I know I can use 

    static DateTime Tomorrow(this Datetime value) { //... }

Or

    public static MyClass {
      public static Tomorrow() { //... }
    }

for a similar result, but how can I extend DateTime so that I could invoke DateTime.Tomorrow?


How do I extend a class with c# extension methods?

I would like to find the date stamp of monday, tuesday, wednesday, etc. If that day hasn&#39;t come this week yet, I would like the date to be this week, else, next week. Thanks!

Get the date of next monday, tuesday, etc

In a Windows (Windows&amp;nbsp;XP) batch script I need to format the current date and time for later use in files names, etc.

It is similar to Stack Overflow question *[How to append a date in batch files][1]*, but with time in as well.

I have this so far:

    echo %DATE%
    echo %TIME%
    set datetimef=%date:~-4%_%date:~3,2%_%date:~0,2%__%time:~0,2%_%time:~3,2%_%time:~6,2%
    echo %datetimef%

which gives:

    28/07/2009
     8:35:31.01
    2009_07_28__ 8_36_01

Is there a way I can allow for a single digit hour in %TIME%, so I can get the following?

    2009_07_28__08_36_01

  [1]: https://stackoverflow.com/questions/864718/how-to-append-a-date-in-batch-files


Format date and time in a Windows batch script

All I need is a way to query an NTP Server using C# to get the Date Time of the NTP Server returned as either a `string` or as a `DateTime`. 

How is this possible in its simplest form?

How to Query an NTP Server using C#?

How does the conversion to UTC from the standard `DateTime` format work?

More specifically, if I create a `DateTime` object in one time zone and then switch to another time zone and run `ToUniversalTime()` on it, how does it know the conversion was done correctly and that the time is still accurately represented?

How does DateTime.ToUniversalTime() work?

I am looking for some JavaScript simple samples to compute elapsed time. My scenario is, for a specific point of execution in JavaScript code, I want to record a start time. And at another specific point of execution in JavaScript code, I want to record an end time.

Then, I want to calculate the elapsed time in the form of: how many Days, Hours, Minutes and Seconds are elapsed between end time and start time, for example: `0 Days, 2 Hours, 3 Minutes and 10 Seconds are elapsed`.

Any reference simple samples? :-)

Thanks in advance,

George

Content Type	Original Author	Original Content on Stackoverflow
Question	Gold	View Question on Stackoverflow
Solution 1 - C#	Steve Guidi	View Answer on Stackoverflow
Solution 2 - C#	vapcguy	View Answer on Stackoverflow
Solution 3 - C#	raghu sathvara	View Answer on Stackoverflow

How do I get modified date from file in C# on Windows Mobile?

C# Problem Overview

C# Solutions

Solution 1 - C#

Solution 2 - C#

Solution 3 - C#

Performance of TypeCasting

Django runserver permanent

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