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  • Reading Excel Named Ranges by OLEDB hangs when the source file is open

    - by Sathish
    I am trying to read the Excel Named range using OLEDB using the below code "Select * from [MyNamedRange1]" everything works fine only when the source excel sheet is not opened if it is open then i am not able to read the range names using OLEDB it simply hangs Where as i am able to execute the query "Select * from [Sheet1$]" even if the workbook is open or closed... Any work arounds for reading the range by OLEDB only i dont want to go for interop... I have too many ranges defined in the excel file

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  • How do I get the file size of a large (> 4 GB) file?

    - by endeavormac
    How can I get the file size of a file in C when the file size is greater than 4gb? ftell returns a 4 byte signed long, limiting it to two bytes. stat has a variable of type off_t which is also 4 bytes (not sure of sign), so at most it can tell me the size of a 4gb file. What if the file is larger than 4 gb?

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  • Copying only the changed files while mirroring a website

    - by Rishi Verma
    I am using wget to mirror website using this code $ wget \ --recursive \ --no-clobber \ --page-requisites \ --html-extension \ --convert-links \ --restrict-file-names=windows \ --domains website.org \ --no-parent \ www.website.org/tutorials/html/ The next time I run it it starts downloading the same files again, however I want only the changed files to be downloaded next time. I am open to use any other tool or script(preferably PHP,Curl) apart from using wget.

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  • Reflecting actionscript objects

    - by Chin
    Is it possible to reflect an object in actionscript and get the property names back in the order they are positioned in the class? I have tried the following var reflectionObject : Object = ObjectUtil.getClassInfo(obj); var propsArray : Array = reflectionObject.properties; (orders alphabetically) var typeInfo:XML = describeType(obj) (Not sure what order this is)

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  • infix operation to postfix using stacks

    - by Chris De La O
    We are writing a program that needs to convert an infix operation (4 5/3) to postfix (4 5 3 / ) using stacks. however my convert to postfix does not work as it doesnt not output the postFix array that is supposed to store the conversion from infix notation to postfix notation. here is the code for the convertToPostix fuction. //converts infix expression to postfix expression void ArithmeticExpression::convertToPostfix(char *const inFix, char *const postFix) { //create a stack2 object named cow Stack2<char> cow; cout<<postFix; char thing = '('; //push a left parenthesis onto the stack cow.push(thing); //append a right parenthesis to the end of inFix array strcat(inFix, ")"); int i = 0;//declare an int that will control posFix position //if the stack is not empty if (!cow.isEmpty()) { //loop to run until the last character in inFix array for (int x = 0; inFix[x]!= '\0'; x++ ) { //if the inFix element is a digit if (isdigit(inFix[x])) { postFix[i]=inFix[x];//it is assigned to the next element in postFix array i++;//move on to next element in postFix } //if the inFix element is a left parenthesis else if (inFix[x]=='(') { cow.push(inFix[x]);//push it unto the stack } //if the inFix element is an operator else if (isOperator(inFix[x])) { char oper2 = inFix[x];//char variable holds inFix operator if (isOperator(cow.stackTop()))//if the top node in the stack is an operator { while (isOperator(cow.stackTop()))//and while the top node in the stack is an operator { char oper1 = cow.stackTop();//char variable holds node operator if(precedence( oper1, oper2))//if the node operator has higher presedence than node operator { postFix[i] = cow.pop();//we pop such operator and insert it in postFix array's next element cow.push(inFix[x]);//and push inFix operator unto the stack i++;//move to the next element in posFix } } } //if the top node is not an operator //we push the current inFix operator unto the top of the stack else cow.push(inFix[x]); } //if the inFix element is a right parenthesis else if (inFix[x]==')') { //we pop everything in the stack and insert it in postFix //until we arrive at a left paranthesis while (cow.stackTop()!='(') { postFix[i] = cow.pop(); i++; } //we then pop and discard left parenthesis cow.pop(); } } postFix[i]='\0'; //print !!postFix array!! (not stack) print();//code for this is just cout<<postFix; }

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  • How do I use multiple arguments from an array to construct an execl() call in C?

    - by chucknelson
    I have a string array in C named args[] - now how can I use this list of arguments to construct a proper call to execl()? So if the array contains: {"/bin/ls","ls","-a","-l"} ...how can I eventually construct an execl() call that is: execl("/bin/ls","ls","-a","-l",NULL); I must be thinking about this wrong, as I can't find anything online, just talk about defining functions that can take a variable number of arguments.

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  • Python: inserting double or single quotes around a string

    - by Jessy
    Im using python to access a MySQL database and im getting a unknown column in field due to quotes not being around the variable. code below: cur = x.cnx.cursor() cur.execute('insert into tempPDBcode (PDBcode) values (%s);' % (s)) rows = cur.fetchall() How do i manually insert double or single quotes around the value of s? I've trying using str() and manually concatenating quotes around s but it still doesn't work. The sql statement works fine iv double and triple check my sql query.

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  • jquery - Getting the second level parent of an element

    - by j-man86
    I am trying to retrieve the parent of an element's parent (grandparent?). I want to find that grandparent, then find a tag in that element, then store that text as a variable to publish elsewhere on the page. I've been trying to use the parent() function but without success. Here's the code I tried: $('.mixPlayCell a').click( function() { var title = $(this).parent().get(0).parent().get(0).text(); alert(title); }); Thanks!

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  • os.walk in python not running with cmd line parameter passed as path

    - by kartiku
    Hello, I needed to find the number of files in a folder on the system. This is what i used: file_count = sum((len(f) for _, _, f in os.walk('path'))) This works fine when we specify the path as a string in quotes, but when I enter a variable name that holds the path, type(file_count) is a generator object, and hence cannot be used as an integer. How to solve this and why does this happen?

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  • Get name given a phone number on the iPhone

    - by ganti
    I'm using a TextField where the user types a phone number. When the TextField changes, it should check if this number is already in the phonebook and display the name. So far, my only way is to parse all names and number in a Dict and read it from there. Is there a simpler, more efficient and sophisticated way to do that?

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  • C# MultiThread Safe Class Design

    - by Robert
    I'm trying to designing a class and I'm having issues with accessing some of the nested fields and I have some concerns with how multithread safe the whole design is. I would like to know if anyone has a better idea of how this should be designed or if any changes that should be made? using System; using System.Collections; namespace SystemClass { public class Program { static void Main(string[] args) { System system = new System(); //Seems like an awkward way to access all the members dynamic deviceInstance = (((DeviceType)((DeviceGroup)system.deviceGroups[0]).deviceTypes[0]).deviceInstances[0]); Boolean checkLocked = deviceInstance.locked; //Seems like this method for accessing fields might have problems with multithreading foreach (DeviceGroup dg in system.deviceGroups) { foreach (DeviceType dt in dg.deviceTypes) { foreach (dynamic di in dt.deviceInstances) { checkLocked = di.locked; } } } } } public class System { public ArrayList deviceGroups = new ArrayList(); public System() { //API called to get names of all the DeviceGroups deviceGroups.Add(new DeviceGroup("Motherboard")); } } public class DeviceGroup { public ArrayList deviceTypes = new ArrayList(); public DeviceGroup() {} public DeviceGroup(string deviceGroupName) { //API called to get names of all the Devicetypes deviceTypes.Add(new DeviceType("Keyboard")); deviceTypes.Add(new DeviceType("Mouse")); } } public class DeviceType { public ArrayList deviceInstances = new ArrayList(); public bool deviceConnected; public DeviceType() {} public DeviceType(string DeviceType) { //API called to get hardwareIDs of all the device instances deviceInstances.Add(new Mouse("0001")); deviceInstances.Add(new Keyboard("0003")); deviceInstances.Add(new Keyboard("0004")); //Start thread CheckConnection that updates deviceConnected periodically } public void CheckConnection() { //API call to check connection and returns true this.deviceConnected = true; } } public class Keyboard { public string hardwareAddress; public bool keypress; public bool deviceConnected; public Keyboard() {} public Keyboard(string hardwareAddress) { this.hardwareAddress = hardwareAddress; //Start thread to update deviceConnected periodically } public void CheckKeyPress() { //if API returns true this.keypress = true; } } public class Mouse { public string hardwareAddress; public bool click; public Mouse() {} public Mouse(string hardwareAddress) { this.hardwareAddress = hardwareAddress; } public void CheckClick() { //if API returns true this.click = true; } } }

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  • Where is the VB.Net debugger "Make Object ID" function?

    - by Josh
    When using the visual studio 2008 debugger with c# i can right-click on a variable and choose "Make Object ID" which allows me to watch that object (via it's ID) regardless of whether it is in the current stack frame or not. When the debugger is in VB code, (doesnt matter if it's run from a c# unit test or a vb unit test) That option isn't there. Where did VB put this feature? Or does it simply not support it like so many other helpful c# features?

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  • Metaprogramming ActiveRecord Rails

    - by Dimitar Vouldjeff
    Hi, I have the following code in my project`s lib directory module Pasta module ClassMethods def self.has_coordinates self.send :include, InstanceMethods end end module InstanceMethods def coordinates [longitude ||= 43.0, latitude ||= 25.0] end end ActiveRecord::Base.extend ClassMethods end And it should create a class method for ActiveRecord::Base - has_coordinates - which I can "assign" to models... But I receive the error undefined local variable or method 'has_coordinates' Thanks in advance!

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  • Two loops speeds drawing in a Jframe

    - by noahn567
    I have a program that requires two classes. The player-Names class, and the Player-Model class. I want the player-Names class to repaint every half second, and the Player-Model class to repaint 60 times per second because i want the movement to be smooth. The problem that i am having is that i want all of this to be done on one J-frame. How would i go about doing this? If you could lead me in the right direction or give me a little example that would be great! Thank you :). for some reason it wont let me post so i'm going to put in some random code import java.awt.Color; import java.awt.Font; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.RenderingHints; import javax.swing.JComponent; import javax.swing.JFrame; public class PlayerNames extends JFrame { static int connectionTimer = 0; static int connectionTimer2 = 0; static int reconnect = 0; static int reconnectValue = 1; static int x = 0; static int reconnectWait = connectionTimer + reconnectValue; private static final long serialVersionUID = 1L; public graph gg = new graph(); public graph g = new graph(); private static GameClient socketClient; private GameServer socketServer; public static void main(int width, int height) { PlayerNames tt = new PlayerNames(); // PlayerGraphics t = new PlayerGraphics(); tt.setSize(width, height); if (Game.ServerOwner == 1) { tt.setTitle("Server: " + Game.username); } else { tt.setTitle("Username: " + Game.username); } tt.setVisible(true); tt.getContentPane().add(tt.gg); tt.getContentPane().add(tt.g); tt.setDefaultCloseOperation(EXIT_ON_CLOSE); tt.setResizable(false); }

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  • Grid 960 bug in Internet Explorer 8?

    - by mg1075
    If you go to the "Variable Grid System" generator and have: column width = 20 number of columns = 12 and gutter width = 60 ...the system provides a content width of 900 and a full width of 960. http://www.spry-soft.com/grids/ Now, this is all fine and dandy in Firefox, Chrome, and even IE6, but when you load those settings in IE8, you end up with the actual full width as 1000px, not 960px. Has this issue been encountered before?

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  • ldd output showing shared object file whose function is not called

    - by iamrohitbanga
    I ran ldd command on an executable created by Open MPI. It shows a reference to libpthread.so Using LD_PRELOAD variable I created my own implementation of pthread_create, but from the it output it seems that MPI implementation is not calling pthread_create as I had expected. Why does ldd show pthread so file in output if it is not being used? does Open MPI not use a separate MPI thread for every node to implement the functionality?

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  • Lost some intellisense in VS2010

    - by maxp
    Getting to grips with Visual Studio 2010, This compiles: var x = System.Web.Security.Membership.GetUser(); And runs, however VS2010 gives no intellisense for x and reports it just as a 'local variable'. Has anyone got any ideas?

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  • In CMake, how does CHECK_INCLUDE_FILE_CXX work?

    - by Neil G
    The following code prints nothing CHECK_INCLUDE_FILE_CXX(glog/logging.h GLOG_INCLUDE) IF(GLOG_INCLUDE) MESSAGE("YY") ENDIF(GLOG_INCLUDE) But I have the following environment variable set: export CPLUS_INCLUDE_PATH=/usr/local/include And, "ls /usr/local/include/glog/logging.h" returns the file. I tried using include_directories( "/usr/local/include" ) but it doesn't work either.

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  • [PowerShell] Input encoding

    - by Andy
    Hi! I need to get output of native application under PowerShell. The problem is, output is encoded with UTF-8 (no BOM), which PowerShell does not recognize and just converts those funky UTF chars directly into Unicode. I've found PowerShell has $OutputEncoding variable, but it does not seem to affect input data. Good ol' iconv is of no help either, since this unnecessary UTF8-as-if-ASCII = Unicode conversion takes place before the next pipeline member acquires data.

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  • "out of scope" error when iterating an NSMutableArray

    - by wgpubs
    Why am I getting an "out of scope" error whenever I try to access the "url" variable in this loop? for(NSString *url in self.winnerImageURLs) { [mediaItemString appendFormat:@"{\"type\":\"image\",\"src\":\"%@\",\"href\":\"%@\"},", url, url]; } The class of very item in the "self.winnerImageURLs" NSMutableArray comes back as NSCFString so I'm not sure what the dealio is here. Any ideas on what I'm doing wrong??? Thanks

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  • Use the output of a command as input of the next command

    - by r2b2
    so i call this php script from the command line : /usr/bin/php /var/www/bims/index.php "projects/output" and it's output is : file1 file2 file3 What I would like to do is get this output and feed to the "rm" command but i think im not doing it right : /usr/bin/php /var/www/bims/index.php "projects/output" | rm My goal is to delete whatever file names the php script outputs. What should be the proper way to do this? Thanks!

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