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  • How to access a control placed inside data template of listbox?

    - by Subhen
    Hi I have the following code: <ListBox x:Name="foldersListBox" Grid.Column="0" MouseLeftButtonUp="foldersListBox_MouseLeftButtonUp" BorderThickness="0" Height="AUTO" ScrollViewer.HorizontalScrollBarVisibility="Disabled" ScrollViewer.VerticalScrollBarVisibility="Disabled"> <DataTemplate> <Border BorderBrush="LightGray" BorderThickness="2" CornerRadius="4"> <Image x:Name="folderImage" Width="70" Height="70" Margin="3" /> </Border> </DataTemplate> </ListBox> Now when I am trying to access folderImage from code behind. I can use the loaded event and typecast the sender as Image type , but I dont want that way. Help plz. Thanks, Subhen

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  • Silverlight Issue : Save in Jpeg format

    - by Amit
    Hi All, I am new to Silverlight. We are working on silverlight 3.0. I want to implement a functionality that specific part of the file like stack panel or grid needs to be export or print to the image format. I mean when i click on specific button then that part of the application needs to export in image format. My first question is, Is it possible to implement it in Silverlight3.0? Or funcitonality is in Silverlight4.0. Can anyone please replay ASAP? Thanks, Amit

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  • Choosing between YUI Charts or Google Visualization API

    - by r2b2
    Hello , I'm a bit stuck with which charting library I will use in my project. Im stuck with this two (but also open for other suggestions) For YUI Charts : Pro : - Very robust and configurable Cons : - Uses flash 9 , which might potentially be inaccessible for users without up to date flash version - Does not support export to image (for flash versions < 10 only) For Google Visualization API pros: - small file size for the libraries, - can be exported to static image charts (via separate API call) Cons - limited configuration options So there, please help me decide. YUI charts has the edge over configuration options but Google Visualization API has the edge in terms of accessibility as it uses SVG to render the grapsh instead of Flash. For users that are hand-cuffed by corporate IT prohibitions , they cant just upgrade their Flash version and the page will not work. Thanks!

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  • Vibrations when exploding/repacking movie

    - by Stefano Borini
    Please bear with me, I know that what I'm doing can sound strange, but I can guarantee there's a very good reason for that. I took a movie with my camera, as avi. I imported the movie into iMovie and then exploded the single frames as PNG. Then I repacked these frames into mov using the following code movie, error = QTMovie.alloc().initToWritableFile_error_(out_path, None) mt = QTMakeTime(v, scale) attrib = {QTAddImageCodecType: "jpeg"} for path in png_paths: image = NSImage.alloc().initWithContentsOfFile_(path) movie.addImage_forDuration_withAttributes_(image, mt, attrib) movie.updateMovieFile() The resulting mov works, but it looks like the frames are "nervous" and shaky when compared to the original avi, which appears smoother. The size of the two files is approximately the same, and both the export and repacking occurred at 30 fps. The pics also appear to be aligned, so it's not due to accidental shift of the frames. My question is: by knowing the file formats and the process I performed, what is the probable cause of such result ? How can I fix it ?

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  • Constructing T-SQL WHERE condition at runtime

    - by Nickson
    I would like to implement a search function where a user passes all the arguments to the "WHERE" clause at runtime. For example in query below, SELECT Col1, Col2, Col3, Col4 FROM MyTable WHERE Col2 = John 1.Now what i want is to give the user a dropdownlist of columnns such that the user selects a column to search by at runtime Also instead of precoding Col2 = John, i want the user to choose their own operator at runtime(such as choosing between =, <, <, <, LIKE, IN) i basically want to contruct a query like SELECT Col1, Col2, Col3, Col4 FROM MyTable WHERE (@FieldToSearchBy e.g Col3, @OperatorToUserInSearach e.g LIKE, @ValueToSearch e.g John) I want to pass @FieldToSearchBy, @OperatorToUserInSearach, @ValueToSearch) as user specified parameters at runtime I want to do this with a TableAdpter like in this example http://www.codeproject.com/KB/database/TableAdapter.aspx

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  • OCR Web Service

    - by sdfx
    I am searching for an OCR web service (eventually open source, preferably free) that simply receives an image and returns the text of the image in writing. I've looked at tesseract, OCRopus and GOCR but the only open server I could find is WeOCR. Unfortunately the detection rates (at least during my tests) are sub-par and the speed is not much better. Does anyone have any experience with OCR web services? I guess the license of tesseract allows the operation of such a service, are there any out there?

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  • Amazon S3 collisions with heroku and paperclip

    - by poseid
    I have an app on my localhost for development and an app for testing on heroku. Image upload with localhost and paperclip always works. However, doing the same experiment with image upload on my heroku app, the app hangs... and the upload seems to be going on forever. I suspect that there is a collision going on. What is needed to get but uploads working? Or do I need to use different buckets for each environment?

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  • jquery hover propagation

    - by Chris
    I'm using this on an hover image : $('.img-style').hover (function(e) { var prixPlus = $(this).closest('a').attr('data-prix'); prixPlus = parseFloat(prixPlus); var prixNew = prix + prixPlus; $('#chgePrix').html(prixNew.toFixed(2)); $('#txtapart').fadeTo('fast', 0.1); }, function(e) { $('#chgePrix').html(prix.toFixed(2)); $('#txtapart').fadeTo('fast', 1); }); But if I pass quickly the mouse 2 or more times over the image, $('#txtapart') fade in and out 2 or more times ! How can I stop the fade propagation ? Thanks for your help...

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  • I am trying to move a rectangle in Pygame using coordinates but won't work

    - by user1821449
    this is my code import pygame from pygame.locals import * import sys pygame.init() pygame.display.set_caption("*no current mission*") size = (1280, 750) screen = pygame.display.set_mode(size) clock = pygame.time.Clock() bg = pygame.image.load("bg1.png") guy = pygame.image.load("hero_stand.png") rect = guy.get_rect() x = 10 y = 10 while True: for event in pygame.event.get(): if event.type == pygame.QUIT: sys.exit() if event.type == KEYDOWN: _if event.key == K_RIGHT: x += 5 rect.move(x,y)_ rect.move(x,y) screen.blit(bg,(0,0)) screen.blit(guy, rect) pygame.display.flip() it is just a simple test to see if i can get a rectangle to move. Everything seems to work except the code I put in italic.

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  • Dynamic "OR" conditions in Rails 3

    - by Ryan Foster
    I am working on a carpool application where people can search for lifts. They should be able to select the city from which they would liked to be picked up and choose a radius which will then add the cities in range to the query. However the way it is so far is that i can only chain a bunch of "AND" conditions together where it would be right to say "WHERE start_city = city_from OR start_city = a_city_in_range OR start_city = another_city_in_range" Does anyone know how to achive this? Thanks very much in advance. class Search < ActiveRecord::Base def find_lifts scope = Lift.where('city_from_id = ?', self.city_from) #returns id of cities which are in range of given radius @cities_in_range_from = City.location_ids_in_range(self.city_from, self.radius_from) #adds where condition based on cities in range for city in @cities_in_range_from scope = scope.where('city_from_id = ?', city) #something like scope.or('city_from_id = ?', city) would be nice.. end end

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  • How to loop through the FormCollection to check if textboxes have values?

    - by Sasha
    Hi there. I have a search page that has 6 textboxes which i pass as FormCollection to the action in the controller. I dont want to search for records if ther is no values in textboxes. Is there a way to loop through all textboxes in FormCollection without to check which ones have values in them? I am a student in the college and this project is part of my summer experience program. I realize that this is a newbie question :) Thank you!

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  • Iphone UIButton not working in nested UIViews

    - by Charles Peterson
    This is so damn simple im sure! Im missing something and im exhausted from trying to fix it. hopefully someone can help. The Button in CharacterView.m works but the button nested down in CharacterMale.m does not. I'm not using IB everything is done progmatically. What would cause one button to work and other not? ///////////////////////////////////////////////////////////////////////////////// CharacterController.m ///////////////////////////////////////////////////////////////////////////////// #import "CharacterController.h" #import "CharacterView.h" @implementation CharacterController - (id)init { NSLog(@"CharacterController init"); self = [ super init ]; if (self != nil) { } return self; } - (void)loadView { [ super loadView ]; characterView = [ [ CharacterView alloc ] init]; self.view = characterView; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; } - (void)dealloc { [super dealloc]; } @end ///////////////////////////////////////////////////////////////////////////////// CharacterView.m ///////////////////////////////////////////////////////////////////////////////// #import "CharacterView.h" #import "CharacterMale.h" @implementation CharacterView - (id)initWithFrame:(CGRect)frame { if (self = [super initWithFrame:frame]) { characterMale = [ [ CharacterMale alloc ] init]; [self addSubview: characterMale]; UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; button.frame = CGRectMake(0, 200, 200, 100); [button setImage:[UIImage imageNamed:@"btnCharSelect.png"] forState:UIControlStateNormal]; [button addTarget:self action:@selector(ApplyImage:) forControlEvents:UIControlEventTouchUpInside]; [ self addSubview: button ]; } return self; } - (void)drawRect:(CGRect)rect { } -(void)ApplyImage:(id)sender { NSLog(@"CharacterView button works"); } - (void)dealloc { [super dealloc]; } @end ///////////////////////////////////////////////////////////////////////////////// CharacterMale.m ///////////////////////////////////////////////////////////////////////////////// #import "CharacterMale.h" #import "CharacterController.h" @implementation CharacterMale - (id)init { self = [ super init]; if (self != nil) { UIImage *image = [UIImage imageNamed:@"charMale.png"]; imageView = [[ UIImageView alloc] initWithImage:image]; [image release]; [ self addSubview: imageView ]; UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; button.frame = CGRectMake(0, 0, 200, 100); [button setImage:[UIImage imageNamed:@"btnCharSelect.png"] forState:UIControlStateNormal]; [button addTarget:self action:@selector(ApplyImage:) forControlEvents:UIControlEventTouchUpInside]; [ self addSubview: button ]; } return self; } -(void)ApplyImage:(id)sender { NSLog(@"CharacterMal button works"); } - (void)dealloc { [super dealloc]; } @end

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  • Release a retain UIImage property loaded via imageNamed?

    - by user158103
    In my class object i've defined a (nonatomic, retain) property for UIImage. I assigned this property with an image loaded via [UIImage imageNamed:@"file.png"]; If at some point I want to reassign this property to another image, should I have to release the prior reference? I am confused because by the retain property I know i should release it. But because imageNamed is a convenience method (does not use alloc), im not sure what rule to apply here. Thanks for the insight!

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  • Wix Bootstrapper - difficulty detecting if software is already installed c++ redistributable, sql server ce 3.5 sp2

    - by gdeck
    I apologize if this is answered elsewhere. So far (thanks to a post from Rob Mensching), my code will detect .NET 4.0 if it's installed and it'll pass right over it. I'm not able to correctly detect Microsoft Visual C++ 2010 x86 Redistributable OR Microsoft SQL Server Compact 3.5 Service Pack 2. My code is below. I'm learning, so I would appreciate as much constructive criticism as possible. <!--Search for .NET 4.0--> <util:RegistrySearch Id="NETFRAMEWORK40" Root="HKLM" Key="SOFTWARE\Microsoft\Net Framework Setup\NDP\v4\Full" Value="Install" Variable="NETFRAMEWORK40" Result="value"/> <!--Search for Microsoft Visual C++ 2010 x86 Redistributable--> <util:RegistrySearch Id="SearchForCPP2010X86" Root="HKLM" Key="SOFTWARE\Microsoft\VisualStudio\10.0\VC\VCRedist\x86" Value="Install" Variable="CPP2010Redist" Result="exists"/> <!--Search for Microsoft SQL Server Compact 3.5 Service Pack 2--> <util:RegistrySearch Id="SearchForSQLSvrCE35SP2" Root="HKLM" Key="SOFTWARE\Microsoft\Microsoft SQL Server Compact Edition\v3.5\ENU" Value="Install" Variable="SQLSvrCE35SP2" Result="exists"/> <Chain> <!-- Install .Net 4 Full --> <PackageGroupRef Id="Net4Full"/> <!-- Install Microsoft Visual C++ 2010 x86 Redistributable --> <PackageGroupRef Id="MSVisCPP2010x86Redist"/> <!-- Install Microsoft SQL Server Compact 3.5 Service Pack 2 --> <PackageGroupRef Id="SQLExpressCE"/> </Chain> <!--Install .NET 4.0--> <PackageGroup Id="Net4Full"> <ExePackage Id="Net4Full" Name="Microsoft .NET Framework 4.0 Setup" Cache="no" Compressed="yes" PerMachine="yes" Permanent="yes" Vital="yes" SourceFile="BootstrapperLibrary\dotNetFx40_Full_setup.exe" DetectCondition="NETFRAMEWORK40"/> </PackageGroup> <!--Install Microsoft Visual C++ 2010 x86 Redistributable--> <PackageGroup Id="MSVisCPP2010x86Redist"> <ExePackage Id="MSVisCPP2010x86Redis" Name="Microsoft Visual C++ 2010 x86 Redistributable " Cache="no" Compressed="yes" PerMachine="yes" Permanent="yes" Vital="yes" SourceFile="BootstrapperLibrary\vcredist_x86.exe" DetectCondition="CPP2010Redist"/> </PackageGroup> <!--Install Microsoft SQL Server Compact 3.5 Service Pack 2--> <PackageGroup Id="SQLExpressCE"> <ExePackage Id="SQLExpressCE" Name="Microsoft SQL Server Compact 3.5 Service Pack 2 Setup" Cache="no" Compressed="yes" PerMachine="yes" Permanent="yes" Vital="yes" SourceFile="BootstrapperLibrary\SSCERuntime-ENU.exe"/> </PackageGroup>

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  • problems with unpickling a 80 megabyte file in python

    - by tipu
    I am using the pickle module to read and write large amounts of data to a file. After writing to the file a 80 megabyte pickled file, I load it in a SocketServer using class MyTCPHandler(SocketServer.BaseRequestHandler): def handle(self): print("in handle") words_file_handler = open('/home/tipu/Dropbox/dev/workspace/search/words.db', 'rb') words = pickle.load(words_file_handler) tweets = shelve.open('/home/tipu/Dropbox/dev/workspace/search/tweets.db', 'r'); results_per_page = 25 query_details = self.request.recv(1024).strip() query_details = eval(query_details) query = query_details["query"] page = int(query_details["page"]) - 1 return_ = [] booleanquery = BooleanQuery(MyTCPHandler.words) if query.find("(") > -1: result = booleanquery.processAdvancedQuery(query) else: result = booleanquery.processQuery(query) result = list(result) i = 0 for tweet_id in result and i < 25: #return_.append(MyTCPHandler.tweets[str(tweet_id)]) return_.append(tweet_id) i += 1 self.request.send(str(return_)) However the file never seems to load after the pickle.load line and it eventually halts the connection attempt. Is there anything I can do to speed this up?

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  • Drag Rotate UIImageView by touch

    - by rockstardev
    I have an UIImageView that is a subview of an UIView. I'm trying to create a drag rotate effect with the UIImageView similar to spinning a bottle but I'm having trouble calculating the radians to rotate the image by. My code below seems like it should work because I've seen a similar calculation in Flash examples. Can anyone shed some light on what I'm doing wrong? Thanks. This is the code contained in my image view subclass: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [[event allTouches] anyObject]; lastLocation = [touch locationInView:[self superview]]; } - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [[event allTouches] anyObject]; CGPoint location = [touch locationInView:[self superview]]; CGFloat xDisplacement = location.x - lastLocation.x; CGFloat yDisplacement = location.y - lastLocation.y; CGFloat rad = atan2f(yDisplacement,xDisplacement); self.transform = CGAffineTransformMakeRotation(rad); }

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  • Can Fluent nhibernate's automapper be configured to handle private readonly backing fields?

    - by Mark Rogers
    I like private readonly backing fields because some objects are mostly read-only after creation, and for collections, which rarely need to be set wholesale (instead using collection methods to modify the collection). For example: public class BuildingType : DomainEntity { /* rest of class */ public IEnumerable<ActionType> ActionsGranted { get { return _actionsGranted; } } private readonly IList<ActionType> _actionsGranted = new List<ActionType>(); private readonly Image _buildingTile; public virtual Image BuildingTile { get { return _buildingTile; } } } But as far as I remember fluent-nhibernate's automapper never had a solution for private readonly backing fields, I'm wondering if that's changed in the last few months. So here's my question: How do I configure automapper or create an automapping convention to map private readonly backing fields?

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  • PHP convert latin1 to utf8 Persian txt

    - by root
    I now work on a web-base PHP app to work with a MySQL Server database . database is with Latin1 Character set and all Persian texts don't show properly . database is used with a windows software Show and Save Persian texts good . I don't want to change the charset because windows software work with that charset . Question: how can convert latin1 to utf8 to show and utf8 to latin1 for saving from my web-base PHP app , or using Persian/Arabic language on a latin1 charset database without problem ? note: one of my texts is ???? ?????? when save from my windows-based software save as ÇÍãÏ ÑÍãÇäí and still show with ???? ?????? in my old windows-based software image : image of database , charsets,collation and windows-based software

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  • Core Animation performance on iphone

    - by nico
    I'm trying to do some animations using Core Animation on the iphone. I'm using CABasicAnimation on CALayer. It's a straight forward animation from a random place at the top of the screen to the bottom of the screen at random speed, I have 30 elements that doing the same animation continuously until another action happens. But the performance on the iPhone 3G is very sluggish when the animations start. The image is only 8k. Is this the right approach? How should I change so it performs better. // image cached somewhere else. CGImageRef imageRef = [[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:name ofType:@"png"]] CGImage]; - (void)animate:(NSTimer *)timer { int startX = round(radom() % 320); float speed = 1 / round(random() % 100 + 2); CALayer *layer = [CALayer layer]; layer.name = @"layer"; layer.contents = imageRef; // cached image layer.frame = CGRectMake(0, 0, CGImageGetWidth(imageRef), CGImageGetHeight(imageRef)); int width = layer.frame.size.width; int height = layer.frame.size.height; layer.frame = CGRectMake(startX, self.view.frame.origin.y, width, height); [effectLayer addSublayer:layer]; CGPoint start = CGPointMake(startX, 0); CGPoint end = CGPointMake(startX, self.view.frame.size.height); float repeatCount = 1e100; CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"position"]; animation.delegate = self; animation.fromValue = [NSValue valueWithCGPoint:start]; animation.toValue = [NSValue valueWithCGPoint:end]; animation.duration = speed; animation.repeatCount = repeatCount; animation.autoreverses = NO; animation.removedOnCompletion = YES; animation.fillMode = kCAFillModeForwards; [layer addAnimation:animation forKey:@"position"]; } The animations are fired off using a NSTimer. animationTimer = [NSTimer timerWithTimeInterval:0.2 target:self selector:@selector(animate:) userInfo:nil repeats:YES]; [[NSRunLoop currentRunLoop] addTimer:animationTimer forMode:NSDefaultRunLoopMode];

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  • animate rotation

    - by Mike
    I'm trying to animate a rotation using CATransform3DMakeRotation, but the problem is once the animation is finished, the image goes back to its initial position, i.e back to zero. But I'd like to keep it where it finished rotating. How would I do that? edit What I'm trying to do is to create the same compass which comes with the new iPhone. Basically the locationmanager gives me new headings every few seconds (or several per second). Using the new heading and the timestamp, I was trying to get a smooth animation of the image but not getting anywhere. The only thing which seems to work is applying the transform directly, e.g. compassimage.layer.transform = CATransform3DMakeRotation(newHeading.trueHeading *M_PI/180,0,0,1.0): but that's not animated...

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  • Another answer to the CAPTCHA problem?

    - by Xeoncross
    Most sites at least employ server access log checking and banning along with some kind of bot prevention measure like a CAPTCHA (those messed-up text images). The problem with CAPTCHAs is that they poss a threat to the user experience. Luckily they now come with user friendly features like refresh and audio versions. Anyway, like linux vs windows, it isn't worth the time of a spammer to customize and/or build a script to handle a custom CAPTCHA example that only pertains to one site. Therefore, I was wondering if there might be better ways to handle the whole CAPTCHA thing. In A Better CAPTCHA Peter Bromberg mentions that one way would be to convert the image to HTML and display it embedded in the page. On http://shiflett.org/ Chris simply asks users to type his name into an input. Examples like this are ways to simplifying the CAPTCHA experience while decreasing the value for spammers. Does anyone know of more good examples I could use or see any problem with the embedded image idea?

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  • Returned JSON is seemingly mixed up when using jQuery Ajax

    - by Niall Paterson
    I've a php script that has the following line: echo json_encode(array('success'=>'true','userid'=>$userid, 'data' => $array)); It returns the following: { "success": "true", "userid": "1", "data": [ { "id": "1", "name": "Trigger", "image": "", "subtitle": "", "description": "", "range1": null, "range2": null, "range3": null }, { "id": "2", "name": "DWS", "image": "", "subtitle": "", "description": "", "range1": null, "range2": null, "range3": null } ] } But when I call a jQuery ajax as below: $.ajax({ type: 'POST', url: 'url', crossDomain: true, data: {name: name}, success: function(success, userid, data) { if (success = true) { document.write(userid); document.write(success); } } }); The userid is 'success'. The actual success one works, its true. Is this malformed data being returned? Or is it simply my code? Thanks in advance, Niall

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  • Preserve data in .net mvc

    - by Wei Ma
    I am implementing a search module with result page support paging. The example provided by NerdDinner passes pagenumber as a parameter for the Index action, and the action uses the pagenumber to perform a query each time the user hit a different page number. My problem is that my search take many more criteria such as price, material, model number etc. than just simple pagenumber. Therefore, I would like to preserve the criteria after users' first submission, so that I only have to pass the pagenumber back and forth. Using ViewData is not possible because ViewData get cleared once it is sent to the View. Is there any good way to preserve the criteria data as I wish?

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