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• Works on debug but not release

  - by user146780

  I have a thread that sets a value to true when it is done. Until then I wait: while(1) { if(done[0] == true) { break; } } This code works just fine in Debug but in Release it stays in the loop forever even though the debugger clearly says that it is true and not false. Why would this not work? Thanks

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• Using C++ to find out how many lines are in a text file

  - by Phenom

  My C++ program needs to know how many lines are in a certain text file. I could do it with getline() and a while-loop, but is there a better way?

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• Check directory for files, retrieve first file

  - by Lowgain

  I'm writing a small ruby daemon that I am hoping will do the following: Check if a specific directory has files (in this case, .yml files) If so, take the first file (numerically sorted preferrably), and parse into a hash Do a 'yield', with this hash as the argument What I have right now is like: loop do get_next_in_queue { |s| THINGS } end def get_next_in_queue queue_dir = Dir[File.dirname(__FILE__)+'/../queue'] info = YAML::load_file(queue_dir[0]) #not sure if this works or not yield info end I'd like to make the yield conditional if possible, so it only happens if a file is actually found. Thanks!

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• LINQ to SQL .Count takes way to much process time and decreases performances.

  - by soldieraman

  LINQ to SQL .Count takes way to much process time and decreases performances. I am doing a recursive loop and for one child (lets call it parent) I have to check the number of children under it to make a decision if it should be included or not. The Count is too slow 8 ms :( for 120 parent records. Any ideas to make it quicker.

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• Highlighting a custom UIButton

  - by Dan Ray

  The app I'm building has LOTS of custom UIButtons laying over top of fairly precisely laid out images. Buttonish, controllish images and labels and what have you, but with a clear custom-style UIButton sitting over top of it to handle the tap. My client yesterday says, "I want that to highlight when you tap it". Never mind that it immediately pushes on a new uinavigationcontroller view... it didn't blink, and so he's confused. Oy. Here's what I've done to address it. I don't like it, but it's what I've done: I subclassed UIButton (naming it FlashingUIButton). For some reason I couldn't just configure it with a background image on control mode highlighted. It never seemed to hit the state "highlighted". Don't know why that is. So instead I wrote: -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { [self setBackgroundImage:[UIImage imageNamed:@"grey_screen"] forState:UIControlStateNormal]; [self performSelector:@selector(resetImage) withObject:nil afterDelay:0.2]; [super touchesBegan:touches withEvent:event]; } -(void)resetImage { [self setBackgroundImage:nil forState:UIControlStateNormal]; } This happily lays my grey_screen.png (a 30% opaque black box) over the button when it's tapped and replaces it with happy emptyness .2 of a second later. This is fine, but it means I have to go through all my many nibs and change all my buttons from UIButtons to FlashingUIButtons. Which isn't the end of the world, but I'd really hoped to address this as a UIButton category, and hit all birds with one stone. Any suggestions for a better approach than this one?

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• Getting rejected value null spring validation

  - by Shabarinath

  Hi in my project when I am trying to validate my form its not showing any error messages even if validation fails (Event Form is not submitted and enters into validation fail block) Here is my code /****************** Post Method *************/ @RequestMapping(value="/property", method = RequestMethod.POST) public String saveOrUpdateProperty(@ModelAttribute("property") Property property, BindingResult result, Model model, HttpServletRequest request) throws Exception { try { if(validateFormData(property, result)) { model.addAttribute("property", new Property()); return "property/postProperty"; } } /********* Validate Block *************/ private boolean validateFormData(Property property, BindingResult result) throws DaoException { if (property.getPropertyType() == null || property.getPropertyType().equals("")) { result.rejectValue("propertyType", "Cannot Be Empty !", "Cannot Be Empty !"); } if (property.getTitle() == null || property.getTitle().equals("")) { result.rejectValue("title", "Cannot Be Empty !", "Cannot Be Empty !"); } return (result.hasFieldErrors() || result.hasErrors()); } But when i debug i can see below one org.springframework.validation.BeanPropertyBindingResult: 1 errors Field error in object 'property' on field 'title': rejected value [null]; codes [Cannot Be Empty !.property.title,Cannot Be Empty !.title,Cannot Be Empty !.java.lang.String,Cannot Be Empty !]; arguments []; default message [Cannot Be Empty !] and this is how i am displaying in jsp file <div class="control-group"> <div class="controls"> <label class="control-label"><span class="required">* </span>Property Type</label> <div class="controls"> <form:input path="title" placeholder="Pin Code" cssClass="form-control border-radius-4 textField"/> <form:errors path="title" style="color:red;"/> </div> </div> </div> Event though when i see the below one when i debug (1 Error its correct) org.springframework.validation.BeanPropertyBindingResult: 1 errors Why it is not displayed in jsp can any one hep me?

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• Objective C "do - while" question

  - by Rob

  The example for one of the exercises in the book I am reading shows the following code: #import <Foundation/Foundation.h> int main (int argc, const char * argv[]) { NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; int input, reverse, numberOfDigits; reverse = 0; numberOfDigits = 0; NSLog (@"Please input a multi-digit number:"); scanf ("%i", &input); if ( input < 0 ) { input = -input; NSLog (@"Minus"); } do { reverse = reverse * 10 + input % 10; numberOfDigits++; } while (input /= 10); do { switch ( reverse % 10 ) { case 0: NSLog (@"Zero"); break; case 1: NSLog (@"One"); break; case 2: NSLog (@"Two"); break; case 3: NSLog (@"Three"); break; case 4: NSLog (@"Four"); break; case 5: NSLog (@"Five"); break; case 6: NSLog (@"Six"); break; case 7: NSLog (@"Seven"); break; case 8: NSLog (@"Eight"); break; case 9: NSLog (@"Nine"); break; } numberOfDigits--; } while (reverse /= 10); while (numberOfDigits--) { NSLog (@"Zero"); } [pool drain]; return 0; } My question is this, the while statement shows (input /= 10) which, if I understand this correctly basically means (input = input / 10). Now, if that is true, why doesn't the loop just run continuously? I mean, even if you were to divide 0 by 10 then that would still extract a number. If the user was to input "50607", it would first cut off the "7", then the "0", and so on and so on, but why does it exit the loop after removing the "5". Wouldn't the response after the "5" be the same as the "0" between the 5 and the 6 to the program?

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• Search BitmapData object for matching pixel values from another Bitmap.

  - by Cos

  Using Actionscript 3 is there a way to search one bitmap for the coordinates matching pixels of another bitmap? http://dl.dropbox.com/u/1914/wired.png Somehow you would have to loop through the bigger bitmap to find and the the pixel range that matches and return those coordinates. For example the Bitmap with the "E" is 250 pixels over and 14 pixels down in the bigger bitmap. I haven't been able to come up with the solution on my own. Thanks.

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• Insert ADO.Net DataTable into an SQL table

  - by strakastroukas

  The current solution i implemented is awful! I use a for... loop for inserting records from an ADO.NET data-table into an SQL table. I would like to insert at once the data-table into the SQL table, without iterating... Is that possible, or am i asking too much?

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• Break from groovy each closure

  - by tinny

  Is it possible to "break" from a Groovy each Closure? Or should I be using a classic loop instead?

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• fill an array with Int like a Char; C++, cin object

  - by Duknov007

  This is a pretty simple question; first time poster and long time looker. Here is my binary to decimal converter I wrote: #include <iostream> #include <cmath> using namespace std; const int MAX = 6; int conv(int z[MAX], int l[6], int MAX); int main() { int zelda[MAX]; const int d = 6; int link[d]; cout << "Enter a binary number: \n"; int i = 0; while (i < MAX && (cin >> zelda[i]).get()) //input loop { ++i; } cout << conv(zelda, link, MAX); cin.get(); return 0; } int conv(int zelda[MAX], int link[6], int MAX) { int sum = 0; for (int t = 0; t < MAX; t++) { long int h, i; for (int h = 5, i = 0; h >= 0; --h, ++i) if (zelda[t] == 1) link[h] = pow(2.0, i); else link[h] = 0; sum += link[t]; } return sum; } With the way the input loop is being handled, I have to press enter after each input of a number. I haven't added any error correction yet either (and some of my variables are vague), but would like to enter a binary say 111111 instead of 1 enter, 1 enter, 1 enter, etc to fill the array. I am open to any technique and other suggestions. Maybe input it as a string and convert it to an int? I will keep researching. Thanks.

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• How can i add to dataGridView1 a data to the last row/column?

  - by user3681442

  In top of form1 i did: private System.Timers.Timer _refreshTimer; private int _thisProcess; Then in the Form1 Load event: _thisProcess = Process.GetCurrentProcess().Id; InitializeRefreshTimer(); PopulateApplications(); Then the timer init method: void InitializeRefreshTimer() { _refreshTimer = new System.Timers.Timer(5000); _refreshTimer.SynchronizingObject = this; _refreshTimer.Elapsed += new System.Timers.ElapsedEventHandler(TimerToUpdate_Elapsed); _refreshTimer.Start(); } Then the timer elapsed event: void TimerToUpdate_Elapsed(object sender, System.Timers.ElapsedEventArgs e) { PopulateApplications(); } In the end the Populate method: void PopulateApplications() { dataGridView1.Rows.Clear(); foreach (Process p in Process.GetProcesses(".")) { if (p.Id != _thisProcess) { try { if (p.MainWindowTitle.Length > 0) { String status = p.Responding ? "Running" : "Not Responding"; dataGridView1.Rows.Add( p.MainWindowTitle, status); } } catch { } } } } The variable status show in the column2 but let's say i want that status will be display for each process/app in column5 ? How can i move it ? EDIT** Tried this: void PopulateApplications() { dataGridView1.Rows.Clear(); foreach (Process p in Process.GetProcesses(".")) { if (p.Id != _thisProcess) { try { if (p.MainWindowTitle.Length > 0) { var icon = Icon.ExtractAssociatedIcon(p.MainModule.FileName); Image ima = icon.ToBitmap(); img.Image = ima; img.HeaderText = "Image"; img.Name = "img"; String status = p.Responding ? "Running" : "Not Responding"; dataGridView1.Rows.Add(img, p.MainWindowTitle, status); } } catch { } } } } I moved the variable img to the top of the form. The problem is i see in each row this: DataGridViewImageColumn { Name=img, Index=-1 } And i don't see the icon it self. Why ?

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• Is it possible to pass Calendar new date in the bean without listener?

  - by isabsent

  I am trying to pass new date from PrimeFaces p:calendar (placed in p:dataTable column) to the backing bean: <p:column > <p:calendar value="#{bean.date}">` <p:ajax /> </p:calendar> </p:column> It does not update bean.date. Variants with <p:ajax update="@this" event="change"/> <p:ajax update="@this" event="select"/> do not update bean.date too. The only way I have found is using of listener. However, I suppose, there should be a way without listener implementation like for simple facelets: <p:column> <h:inputText value="#{bean.note}" > <f:ajax/> </h:inputText> </p:column> that works fine for me. Does anybody know how to get it working!?

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• Print numbers sequentially using printf with filling zeroes

  - by Werner

  Hi, in C++, using printf I want to print a sequence of number, so I get, from a "for" loop; 1 2 ... 9 10 11 and I create files from those numbers. But when I list them using "ls" I get 10 11 1 2 .. so instead of trying to solve the problem using bash, I wonder how could I print; 0001 0002 ... 0009 0010 0011 and so on Thanks

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• JavaScript Key Codes

  - by Jonathan Wood

  I'm working with a JavaScript routine I didn't write. It is called from a text box's onkeydown attribute to prevent unwanted keystrokes. The first argument is apparently not used. The second argument is a list of characters that should be allowed. function RestrictChars(evt, chars) { var key; var keychar; if (window.event) key = window.event.keyCode; else if (e) key = e.which; else return true; keychar = String.fromCharCode(key); if ((key == null) || (key == 0) || (key == 8) || (key == 9) || (key == 13) || (key == 27)) // Control key return true; else if (((chars).indexOf(keychar) > -1)) return true; else return false; } This seems to work for alpha-numeric characters. However, characters such as . and / cause this function to return false, even when these characters are included in the chars parameter. For example, if the . key is pressed, key is set to 190, and keychar gets set to the "3/4" character. Can anyone see how this was meant to work and/or why it doesn't? I don't know enough about JavaScript to see what it's trying to do.

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• Zend framework : how to extract a column from mysql result set?

  - by understack

  What would be the best way to extract a column out of mysql results set? My result set is like: [0] = ('id'=>1, 'name'=>a), [1] = ('id'=>2, 'name'=>b), [2] = ('id'=>3, 'name'=>c) How can I extract 'name' column as an array from this? I can do it using for loop. But wondering if there are any better reusable solution?

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• Actionscript flex sockets and telnet

  - by MAC

  I am trying to make a flex application where it gets data from a telnet connection and I am running into a weird problem. To give a brief introduction, i want to read data from a process that exposes it through a socket. So if in the shell i type telnet localhost 8651i receive the xml and then the connection is closed (I get the following Connection closed by foreign host.) Anyway i found a simple tutorial online for flex that essentially is a telnet client and one would expect it to work but everything follows Murphy's laws and nothing ever works! Now i have messages being printed in every event handler and all places that i can think off. When i connect to the socket nothing happens, no event handler is triggered even the connect or close handler and if i do the following the socket.connected returns false! I get no errors, try catch raises no exception. I am at a loss as to whats going wrong? socket.connect(serverURL, portNumber); msg(socket.connected.toString()); Is there something about telnet that i do not know and its causing this to not work. Whats more interesting is why none of the events get fired. Another interesting thing is that i have some python code that does the same thing and its able to get the xml back! The following is the python code that works! def getStats(host, port): sock = socket.socket() sock.connect((host, port)) res = sock.recv(1024*1024*1024, socket.MSG_WAITALL) sock.close() return statFunc(res) So i ask you whats going wrong!!!!!! Is there some inherent problem with how flex handles sockets?

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• How to attach a line to a moving object?

  - by snow-spur

  Hello i have designed a maze and i want to draw a path between the cells as the 'person' moves from one cell to the next. So each time i move the cell a line is drawn I have done this so far but do not want to show my full code However i get an error saying Circle has no attribute center my circle which is my cell center = Point(15, 15) c = Circle(center, 12) c.setFill('blue') c.setOutline('yellow') c.draw(win) p1 = Point(c.center().getx(), c.center().gety()) this bit is in my loop p2 = Point(getx(), gety()) line = graphics.Line(p1, p2)

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• What is wrong with this javascript?

  - by bala3569

  i use this javascript syntax for validating a checkbox... alert(document.getElementById("ctl00_ContentPlaceHolder1_Chkreg").checked); if (document.getElementById("ctl00_ContentPlaceHolder1_Chkreg").checked == false) { document.getElementById("ctl00_ContentPlaceHolder1_ErrorMsg").innerHTML = "please select the checkbox"; document.getElementById("ctl00_ContentPlaceHolder1_Chkreg").focus(); return false; } My alert showed me false but my if loop is not working... Any suggestion...

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• Run Jar in Background on Linux

  - by Benny

  I have a jar that runs forever (infinite loop with socket listening thread) and need it to run in the background at all times. An example would be: "java -jar test.jar" How do I do this? Thanks in advance!

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• Add Hover display for table cell

  - by Jake

  I have a table, but it is not in a list format, meaning not a column/row format. I look for specific cells to add a hover event that displays a description of the cell. $("#TableID td").hover(function(){ //ifCellThatIWant $(this).append("<span>Message that was brought in</span>"); }, function(){ $(this).children().remove(); }); The problem is right now is that the hover displays a span(with info. inside) that I used jquery to append the span to the cell when mouseover, which expands the cell, which is an effect that I don't like or want. I'm Trying to have an out of the table look,but still be by the cell that triggered the event; because if the span has a lot of info. in it, expanding the cell dynamically will start to look pretty nasty. Also will help if I had some type of css direction on how will I make the display for the mouseover "description" span look nice. My mind thought is that a way to accomplish what I want is giver the appended span the position of my mouse cursor when hover, but not sure if its the right approach or what the syntax would look like.

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• Jquery - removing an image before the client browser attempts to download it

  - by ajbrun

  Hi there, I wonder if anyone could help me with a problem I've been having. I have a number of large images available, but due to space limitations, I can't create multiple copies of these at various sizes. I have used PHP GD functions to resize the images to the sizes I need and output them to the browser. This works, but obviously takes some processing time, which therefore impacts pages load times. I'm fine with this, but I only want to show the image once it's fully loaded, and have a loading gif in its place until that time. I'm using jquery to do this. The problem I'm having is making the page functional whether the client has javascript enabled or not. If JS is not enabled, I want standard img tags to be outputted, otherwise the images are removed and replaced with a loading gif until they have been fully loaded. The link below shows a simple non-javascript unfriendly example of a what I want to do (try turning JS off): http://jqueryfordesigners.com/demo/image-load-demo.php I've been testing the basics using the code below. The attr() function will be replaced with something like remove(). This is just a test to make something happen to the image before the browser tries to load it. $(document).ready(function() { $( "#Thumbnails .thumbnail img" ).attr('src', '#'); }); In IE, this works correctly - the image source is replaced with "#" BEFORE the client browser gets a chance to start downloading the image. In firefox however, it downloads the image, and THEN changes the source. It seems to me that firefox is loading the jquery onready event later than it should. As far as I know, this should be executed before the standard onload event and before anything has started loading. If it helps, I'm testing it with a good number of images on screen (81). Am I doing something wrong?

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• How can I find the number of highlighted chunks of text in an MS Word Document

  - by Majid

  Hi all, I am writing a macro in MS Word which should find all highlighted text in a document and perform some action on each. I am planning a loop to do the search and manipulation part and have no problem with this part of the code. But I don't know how to find how many iterations I'm going to need. Is there a vay to determine the number of highlights in VBA? Many thanks in advance.

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• Why am I needing to click twice on a WPF listbox item in order to fire a command?

  - by Donal

  Hi, I'm trying to make a standard WPF listbox be dynamically filled, and for each item in the list box to launch a command when clicked. Currently I have a working listbox, which can be filled and each item will fire the correct command, but in order to fire the command I have to click the list item twice. i.e, Click once to select the item, then click on the actual text to fire the command. As the list is dynamically created, I had to create a data template for the list items: <ListBox.ItemTemplate> <DataTemplate> <TextBlock Margin="4,2,4,2"> <Hyperlink TextDecorations="None" Command="MyCommands:CommandsRegistry.OpenPanel"> <TextBlock Text="{Binding}" Margin="4,2,4,2"/> </Hyperlink> </TextBlock> </DataTemplate> </ListBox.ItemTemplate> Basically, how do I remove the need to click twice? I have tried to use event triggers to fire the click event on the hyperlink element when the list box item is selected, but I can't get it to work. Or, is there a better approach to dynamically fill a listbox and attach commands to each list item? Thanks

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• EUpdateError exception not recognized when raised in TDatasetProvider.OnUpdateError. Why?

  - by max

  When I re-throw a EUpdateError exception in the TDatasetProvider.OnUpdateError event, it is not recognized as EUpdateError exception in the catch block. It's only recognized as base Excption. try ... //calls the TDatasetPorvider.OnUpdateError event. myClientDataSet.ApplyUpdates(0); ... except on ex: EUpdateError do begin //never goes here //Evaluate ex.ErrorCode end; on ex: Exception do begin //always goes here //the expression (ex is EUpdateError) returns false; end; end; Hiere is the corresponding .OnUpdateError implementaion: procedure MyDataModule.MyDatasetProviderOnUpdateError(..;E: EUpdateError;...); beign //Here, the expression (E is EUpdateException) returns true; raise E; end; The exception is re-thrown, but as it seems the EUpdateError is transformed into a plain base Execption. Does anybody know, why the class type get lost? I would need that type in order to check the .ErrorCode to know what went wrong and to prepare the proper user message.

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