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  • C# Reflection: How to call method of interface without creating instance?

    - by jitm
    Hello, I have situation where I have to call method of interface using reflection, like this object x = null; MethodInfo method = interfaceExists.GetMethod("ShutDown"); method.Invoke(x, new object[] { 4 }) As you can see I do not create instance of object! And, as I can supposed, I receive exception Non-static method requires a target And Question, Can I call method of interface using reflection without creating instance of interface and if YES, How I can do it ? Thank you.

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  • How to treat compressed folders as files using ShellObject from WindowsAPICodePack?

    - by JustABill
    I am trying to implement a filesystem browser using the WindowsAPICodePack for C# (.Net 4), and it works pretty well, except that the ShellObject system treats zip files as folders, whereas I'd prefer they be files. Is there some way I can force it to work this way? The low-level interop it does is beyond me. As far as I can tell, internally it asks if the item is a Folder or a Filesystem element. It then uses this (and some type checks) to figure out what it actually is. Is it safe to force it to treat it as a file if it's Compressed? Or do I have to do something else?

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  • twitter api post rate limit

    - by Xavier
    Does anyone know Twitter's rate limit on posting? Looking at their web page they claimed to not have one but I get an exception thrown if my program posts too fast... Any help is appreciated.

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  • If a command line program is unsure of stdout's encoding, what encoding should it output?

    - by mackstann
    I have a command line program written in Python, and when I pipe it through another program on the command line, sys.stdout.encoding is None. This makes sense, I suppose -- the output could be another program, or a file you're redirecting it into, or whatever, and it doesn't know what encoding is desired. But neither do I! This program will be used by many different people (humor me) in different ways. Should I play it safe and output only ascii (replacing non-ascii chars with question marks)? Or should I output UTF-8, since it's so widespread these days?

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  • How to Change Type of a VARIANT

    - by nimo
    Hi, I'm having a VARIANT with its type set to VT_R8. Subsequently I need to change its type to VT_BSTR. I would like know whether there is a way of resetting a VARIANT status. Thus, I noticed that every time I set value to the VARIANT (in my case, its double) , VARIANT itself set its bstrVal member to a bad pointer, even though I set bstrVal member to NULL at the initialization of VARIANT. Why such thing is happening ? Is it safe to use a VARIANT as structure where both dbVal and bstrVal member are set ? Please clarify, thank you.

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  • Can't exit an Android application

    - by saravanan
    // @Override public boolean onOptionsItemSelected(MenuItem item) { // TODO Auto-generated method stub switch(item.getItemId()) { case EXIT: try { this.finish(); } catch(Exception e) { } break; } return false; } When I exit my android application it resumes the previous screen. How can I exit the Android application properly?

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  • How secure is encryption?

    - by Stomped
    Let me preface this by saying I know nothing about encryption. I understand the basic concept of public key / private key encryption but I don't how easily it can be broken, if at all. If one were to believe the movies, encrypted data can be broken by a teenager with a decent computer in a few hours. I have a client who wants credit card information sent via email - encrypted of course, but I'm still not feeling terribly good about the idea. I feel it would be safer to store the info on the VPS, but even then its an unmanaged server and there's nobody watching it who knows much about security. So can anyone tell me if there's a safe way to store and/or send this data out? Thanks

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  • Does SELECT COUNT(*) work with MySQLi prepared statements?

    - by wordman
    I'm working on a test page and am using MySQLi prepared statements in my queries after reading they make my code safe from SQL injection. I have been successful with prepared statements so far with retrieving data from my DB, that all works great. What I want to do now is count the number of galleries within a project using SELECT COUNT(*). That's it. Without using a prepared statement, my old query looked like this: // count number of galleries per project $conn = dbConnect('query'); $galNumb = "SELECT COUNT(*) FROM pj_galleries WHERE project = {$pjInfo['pj_id']}"; $gNumb = $conn->query($galNumb); $row = $gNumb->fetch_row(); $galTotal = $row[0]; But for all my reading and searching the internet, I can not find out the proper way to write this as a prepared statement. I'm no PHP whiz here, and not coding daily isn't helping my skills. If I've missed anything please ask. Many thanks!

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  • jquery ajax calls with scope safety

    - by acidzombie24
    My gut tells me that if i am on a laggy server and the user fires two events fast enough on the success function c will be the value of the most recent event causing func1 to use the wrong value. <--- This is a guess, i haven't proved it. Its a feeling. How do i ensure that i use the right value when calling func1? I prefer not to send c to the server and i dont know if or how to serialize the data and deserialize it back. How do i make this code safe? $('.blah').click(function (event) { var c = $(this).closest('.comment'); ... $.ajax({ url: "/u", type: "POST", dataType: "json", data: { ... }, success: function (data) { func1(c. data.blah);//here

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  • Why the generated key size is not constant?

    - by Tom Brito
    The following code prints randomly 634, 635, 636, each time I run it. Why its not constant? public static void main(String[] args) throws Exception { KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance("RSA", "BC"); keyPairGen.initialize(1024); RsaKeyPair keyPair = new RsaKeyPair(keyPairGen.generateKeyPair()); System.out.println(keyPair.getPrivate().getEncoded().length); }

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  • Debuggerproblem

    - by sudhakarilla
    I have problem .. i get debugerror i will used in json 2009-02-13 18:32:17.405 xxxxxxxx[1491:20b] * -[NsDecimalNumber length]: unrecognized selector sent to instance 0xc3f10ff0 2009-02-13 18:32:17.406 xxxxxxxx[1491:20b] Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '** -[NsDecimalNumber length ]: unrecognized selector sent to instance 0xc3f10ff0' 2009-02-13 18:32:17.406 xxxxxxxx[1491:20b] Stack: ( 2417225995, 2527100475, 2417255178, 2417248524, 2417248722, 22199, 9853, 816111650, 816149355, 2458333742, 2416728869, 2416729304, 827745792, 827745989, 816114848, 816160924, 9628, 9482 ) please send soluation...

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  • using windows service can we copy files from one computer to another computer C#.net ?

    - by Harry
    I have one service that will create a text file to local machine and then need to copy the same file to another server . I am using " File.Copy(SourceFilePath, TargetFilePath, true);" and getting an exception at the target file path "access denied. I am able to copy the files manually to that location ( TargetFilePath) . any idea , what is going wrong ?? I don't have any network drive mapping with this target location. Thanks in Advance

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  • Behavior is different when debugger is attached

    - by Lys
    I'm using VS 2008 to debug C# program with source code access. The expected behavior happened as long as the debugger attached to the running program, but when the program ran without debugger attached the exception threw. What are the common reasons for this to happen, and how can I tell the code difference behind this? Thanks,

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  • Magento Reindexing doesn't work

    - by Dgent
    I recently created around 700 attributes through script, all attributes look fine at backend. But when I reindex, I get following error: exception 'PDOException' with message 'SQLSTATE[42S22]: Column not found: 1054 Unknown column 'e.additional_information_s' in 'field list'' in /lib/Zend/Db/Statement/Pdo.php:228 Note: this attribtue exist in Database (eav_attribtue) table. I would highly appreciate suggestion. Looking forward to heat from you geeks. Thanks

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  • android get URL path

    - by Tom91136
    I've got a string: public://imageifarm/3600.jpg How can I extract the imageifarm/3600.jpg Part out using android? What I've tried so far: URL drupalQuestionNodeImageURI = new URL("public://imageifarm/3600.jpg"); Log.d("TAG", drupalQuestionNodeImageURI.getPath()); but it throws this exception: 09-16 17:24:39.992: W/System.err(3763): java.net.MalformedURLException: Unknown protocol: public How can I solve this? I know I can use regular expressions but that seems to defeat the purpose of URL(URI) in this case.

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  • Why does the 'as' keyword work while the () cast does not.

    - by Mausimo
    //always works, returning a valid object into _page _page = _httpContext.Handler as System.Web.UI.Page; //Fails throwing the exception : Unable to cast object of type 'System.Web.DefaultHttpHandler' to type 'System.Web.UI.Page' _page = (System.Web.UI.Page)_httpContext.Handler; I would like to know why this happens?

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  • Joining two select queries and ordering results

    - by user1
    Basically I'm just unsure as to why this query is failing to execute: (SELECT replies.reply_post, replies.reply_content, replies.reply_date AS d, members.username FROM (replies) AS a INNER JOIN members ON replies.reply_by = members.id) UNION (SELECT posts.post_id, posts.post_title, posts.post_date AS d, members.username FROM (posts) as b WHERE posts.post_set = 0 INNER JOIN members ON posts.post_by = members.id) ORDER BY d DESC LIMIT 5 I'm getting this error: #1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'a INNER JOIN members ON replies.re' at line 2 All I'm trying to do is select the 5 most recent rows (dates) from these two tables. I've tried Join, union etc and I've seen numerous queries where people have put another query after the FROM statement and that just makes no logical sense to me as to how that works? Am I safe to say that you can join the same table from two different but joined queries? Or am I taking completely the wrong approach, because frankly I can't seem see how this query is failing despite reading the error message. (The two queries on there own work fine)

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  • Change the key being pressed with C#

    - by Benny
    Hey, I'm trying to write a program in C# that will track the pressing of certain keys (using a keyboard hook), and send different ones instead. For instance, when I press the A key it will instead send the Q key. I used http://www.codeproject.com/KB/cs/CSLLKeyboardHook.aspx this for my hooks and tried to use the SendKeys function, but I get an exception about the garbage collector destroying some object inside the hook class.

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  • Java: Converting UTF 8 to String

    - by kujawk
    When I run the following program: public static void main(String args[]) throws Exception { byte str[] = {(byte)0xEC, (byte)0x96, (byte)0xB4}; String s = new String(str, "UTF-8"); } on Linux and inspect the value of s in jdb, I correctly get: s = "ì–´" on Windows, I incorrectly get: s = "?" My byte sequence is a valid UTF-8 character in Korean, why would it be producing two very different results?

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