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Articles indexed Thursday April 1 2010

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  • How to retrieve TextBlock from DataGridColumnHeader HeaderStyle in Silverlight

    - by Xin
    As in Silverlight I can't bind directly to a DataGridColumn's property, in order to dynamically change the text of the column header, I have to write the following code using HeaderStyle. <data:DataGridTextColumn.HeaderStyle> <Style TargetType="dataprimitives:DataGridColumnHeader"> <Setter Property="ContentTemplate"> <Setter.Value> <DataTemplate> <TextBlock Text="{Binding Resource.ClientName, Mode=OneWay}"/> </DataTemplate> </Setter.Value> </Setter> </Style> </data:DataGridTextColumn.HeaderStyle> </data:DataGridTextColumn> My problem is that now I need to get the Name of the TextBlock from grid.Columns[index]. Is there any way I can do this? I tired to use VisualTreeHelper but since DataGridColumn is not a FrameworkElement it will throw me an error... Any help would be greatly appreciated! Xin

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  • advanced opensource iphone applications for developers

    - by Naveen
    The appstore does not allow your app out of a sandbox or allow it an interpreter. But is there any issue with distributing open source apps that run arbitrary code, and let iphone developers install them on their own development devices using xcode itself ? Also, is there anything you can not do with xcode that you may be able to do with ssh after jailbreaking ?

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  • unable to connect to Mailchimp services using java wrapper

    - by Nagesh
    I am using Java wrapper of mailchimp API for converting to inline CSS. I downloaded the java wrapper and tried with method inlineCss(); I register with Mailchimp and got the Api key. API Key: d5296efe2d4879e90d95b151804f8d30-us1 I am getting the below exception while calling the ping(apiKey) method. Could you please provide me the solution to resolve this problem. Exception in thread "main" com.nwire.mailchimp.MailChimpServiceException: Failed to read servers response: api.mailchimp.com at com.nwire.mailchimp.MailChimpServiceFactory$ClientFactory$1.invoke(MailChimpServiceFactory.java:190) at $Proxy0.ping(Unknown Source) at com.nwire.mailchimp.test.InlineTest.initialize(InlineTest.java:44) at com.nwire.mailchimp.test.InlineTest.run(InlineTest.java:36) at com.nwire.mailchimp.test.InlineTest.main(InlineTest.java:23) Below is the code I am using for connecting to Mailchimp. public void initialize() { mcServices = MailChimpServiceFactory.getMailChimpServices(); final String ping = mcServices.ping(apiKey); if (IMailChimpServices.PING_SUCCESS.equals(ping)) { logger.error("MailChimp connection pinged successfully"); } else { logger.error("Failed to ping MailChimp, response: " + ping); } } Regards, Nagesh.

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  • How to handle request-wise DB transactions in ASP.NET MVC?

    - by Dario Solera
    I'm using SubSonic 3.0 (SimpleRepository) to handle database access in my ASP.NET MVC 1.0 application. It would be nice to handle a transaction for every web request, committing if everything went smooth and rolling back in case of exception. Is this possible? If so, how? I know this topic has been discussed many times, but I just couldn't find a satisfactory answer. I have built my own solution (create a TransactionScope in the controller, then commit/rollback in OnActionExecuted), but it turns out to be very unreliable.

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  • Outlets buggy, causing crash?

    - by Moshe
    I've been having issues with making outlets and I was wondering if there is a difference and what the difference could be... EDIT: Using Outlets seem to be causeing SIGABRT errors... // // hebOmer.h // tizkorPush // // Created by Moshe -...- . // Copyright 2010 __MyCompanyName__. All rights reserved. // #import <UIKit/UIKit.h> #import "support.h" #import "hdate.h" @interface hebOmer : UIViewController{ IBOutlet UIScrollView * hebrewScrollView; UILabel *hebrewOmer; } @property (nonatomic, retain) UIScrollView * hebrewScrollView; @property (nonatomic, retain) IBOutlet UILabel *hebrewOmer; @end Creating an outlet to the UILabel is causing problems. The implementation seems fine. @synthesize and the memory release functions were called properly.

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  • How could it happen that version control software emerged so lately?

    - by sharptooth
    According to Wikipedia (the table at the page bottom), the earliest known version control systems were CVS and TeamWare both known from year 1990. How can it be? Software development has been here from at most 1960's and I honestly can't imagine working with codebase without version control. How could it happen that version control software emerged so lately compared to software development?

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  • Why does the definition of MyAnnotation need Documented, Inherited, Retention & RetentionPolicy?

    - by cafe
    What is the purpose of these java.lang.annotation imports in this code? Why are they needed to define MyAnnotation? import java.lang.annotation.Documented; import java.lang.annotation.Inherited; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; @Documented @Retention(RetentionPolicy.RUNTIME) @Inherited public @interface MyAnnotation { String value() default ""; }

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  • dangling pointer, reason for value change after free()?

    - by Aman Jain
    In the following code segment, after free(x), why does y becomes 0? As per my understanding, the memory in the heap that was being pointed to by x, and is still being pointed by y, hasn't been allocated to someone else, so how can it change to 0? And moreover, I don't think it is free(x) that changed it to 0. Any comments? #include <stdio.h> int main ( int argc, char *argv[] ) { int *y = NULL; int *x = NULL; x = malloc(4); *x = 5; y = x; printf("[%d]\n", *y); //prints 5 free(x); printf("[%d]\n", *y); //why doesn't print 5?, prints 0 instead return 0; }

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  • Calculating File size before download

    - by sagar
    Ok ! Coming to the point directly. What I want to do is explained as follows. I have an url of MP3 file. ( for example Sound File ) Now, When user starts application. Download should start & for that I have implemented following methods. -(void)viewDidLoad { [super viewDidLoad]; NSURL *url=[NSURL URLWithString:@"http://xyz.pqr.com/abc.mp3"]; NSURLRequest *req=[NSURLRequest requestWithURL:url cachePolicy:NSURLCacheStorageNotAllowed timeoutInterval:120]; NSURLConnection *con=[[NSURLConnection alloc] initWithRequest:req delegate:self startImmediately:YES]; if(con){ myWebData=[[NSMutableData data] retain]; } else { // [MainHandler performSelector:@selector(targetSelector:) withObject:nil]; } } -(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response{ NSLog(@"%@",@"connection established"); [myWebData setLength: 0]; } -(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { NSLog(@"%@",@"connection receiving data"); [myWebData appendData:data]; } -(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error { NSLog(@"%@",@"connection failed"); [connection release]; // [AlertViewHandler showAlertWithErrorMessage:@"Sorry, there is no network connection. Please check your network and try again."]; // [self parserDidEndDocument:nil]; } -(void)connectionDidFinishLoading:(NSURLConnection *)connection { [connection release]; } Now, Above methods work perfectly for downloading. But missing points are as follows. I can not get the exact size which is going to be downloaded. ( means I want to know what is the size of file - which is going to be download )

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  • alarm clock for iphone

    - by Joy
    I am looking to develop an alarm clock for iphone. But i came to know that i can't run application in the background. So is there any other way to do that job. Please help me cause i'm in serious problem. Thanks in advance

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  • Enabling full documentation for J2EE in eclipse

    - by maayank
    I'm new to Eclipse and am using it currently to play with J2EE. When using Ctrl+Space for types/functions from the regular Java libraries I get a full description (i.e. general description of the type, what are the arguments of the method for, etc.). However I don't get the same for J2EE types. For example, when using Ctrl+Space on methods of the HttpSession class I get only names like "arg0" or "obj" and no description. Is there some kind of a package I can install to remedy this?

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  • Json <-> Java serialization that works with GWT

    - by amartynov
    I am looking for a simple Json (de)serializer for Java that might work with GWT. I have googled a bit and found some solutions that either require annotate every member or define useless interfaces. Quite a boring. Why don't we have something really simple like class MyBean { ... } new GoodSerializer().makeString(new MyBean()); new GoodSerializer().makeObject("{ ... }", MyBean.class)

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  • Access modifiers - Property on business objects - getting and setting

    - by Mike
    Hi, I am using LINQ to SQL for the DataAccess layer. I have similar business objects to what is in the data access layer. I have got the dataprovider getting the message #23. On instantiation of the message, in the message constructor, it gets the MessageType and makes a new instance of MessageType class and fills in the MessageType information from the database. Therefore; I want this to get the Name of the MessageType of the Message. user.Messages[23].MessageType.Name I also want an administrator to set the MessageType user.Messages[23].MessageType = MessageTypes.LoadType(3); but I don't want the user to publicly set the MessageType.Name. But when I make a new MessageType instance, the access modifier for the Name property is public because I want to set that from an external class (my data access layer). I could change this to property to internal, so that my class can access it like a public variable, and not allow my other application access to modify it. This still doesn't feel right as it seems like a public property. Are public access modifiers in this situation bad? Any tips or suggestions would be appreciated. Thanks.

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  • Doing a "Diff" on an Associative Array in javascript / jQuery?

    - by Matrym
    If I have two associative arrays, what would be the most efficient way of doing a diff against their values? For example, given: array1 = { foreground: 'red', shape: 'circle', background: 'yellow' }; array2 = { foreground: 'red', shape: 'square', angle: '90', background: 'yellow' }; How would I check one against the other, such that the items missing or additional are the resulting array. In this case, if I wanted to compare array1 within array2, it would return: array3 = {shape: 'circle'} Whilst if I compared array2 within array1, it would return: array3 = {shape: 'square', angle: '90'} Thanks in advance for your help!

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  • ASP .NET MVC Secure all resources

    - by Tim
    How to enable Authentication on whole controller and disable only for certain action methods. I want authentication for all resources. If I write something like that: [Authorize] public class HomeController : BaseController { //This is public [UnAuthorized] public ActionResult Index() { ViewData["Message"] = "Welcome to ASP.NET MVC!"; return View(); } //This is private resource public ActionResult PrivateResource() { return View(); } } Then anyone can access this resource. Do you have any ideas how to make it better way?

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  • regarding C++ stl container swap function

    - by sm1
    I recently learned that all stl containers have swap function: i.e. c1.swap(c2); will lead to object underlying c1 being assigned to c2 and vice versa. I asked my professor if same is true in case of c1 and c2 being references. he said same mechanism is followed. I wonder how it happens since c++ references cannot be reseted.

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  • How to write text(using CGContextShowTextAtPoint) on graph x and y-axis intervals points?

    - by Rajendra Bhole
    I developed graph using NSObject class and using CGContext method. The following code displaying dynamically in X and Y-axis intervals, CGContextSetRGBStrokeColor(ctx, 2.0, 2.0, 2.0, 1.0); CGContextSetLineWidth(ctx, 2.0); CGContextMoveToPoint(ctx, 30.0, 200.0); CGContextAddLineToPoint(ctx, 30.0, 440.0); for(float y = 400.0; y >= 200.0; y-=30) { CGContextSetRGBStrokeColor(ctx, 2.0, 2.0, 2.0, 1.0); CGContextMoveToPoint(ctx, 28, y); CGContextAddLineToPoint(ctx, 32, y); CGContextStrokePath(ctx); //CGContextClosePath(ctx); } CGContextMoveToPoint(ctx, 10, 420.0); CGContextAddLineToPoint(ctx, 320, 420.0); //CGContextAddLineToPoint(ctx, 320.0, 420.0); //CGContextStrokePath(ctx); for(float x = 60.0; x <= 260.0; x+=30) { CGContextSetRGBStrokeColor(ctx, 2.0, 2.0, 2.0, 1.0); CGContextMoveToPoint(ctx, x, 418.0); CGContextAddLineToPoint(ctx, x, 422.0); CGContextStrokePath(ctx); CGContextClosePath(ctx); } I want to write the dynamic text on the X and Y-axis lines near the intervals (like X-axis is denoting number of days per week and Y-axis denoting something per someting)? Thanks.

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  • How to get the child elementsvalue , when the parent element contains different number of child Elem

    - by Subhen
    Hi, I have the following XML Structure: <DIDL-Lite xmlns="urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:upnp="urn:schemas-upnp-org:metadata-1-0/upnp/" xmlns:dlna="urn:schemas-dlna-org:metadata-1-0/"> <item id="1268" parentID="20" restricted="1"> <upnp:class>object.item.audioItem.musicTrack</upnp:class> <dc:title>Hey</dc:title> <dc:date>2010-03-17T12:12:26</dc:date> <upnp:albumArtURI dlna:profileID="PNG_TN" xmlns:dlna="urn:schemas-dlna-org:metadata-1-0">URL/albumart/22.png</upnp:albumArtURI> <upnp:icon>URL/albumart/22.png</upnp:icon> <dc:creator>land</dc:creator> <upnp:artist>sland</upnp:artist> <upnp:album>Change</upnp:album> <upnp:genre>Rock</upnp:genre> <res protocolInfo="http-get:*:audio/mpeg:DLNA.ORG_PN=MP3;DLNA.ORG_OP=01;DLNA.ORG_CI=0;DLNA.ORG_FLAGS=01700000000000000000000000000000" size="9527987" duration="0:03:58">URL/1268.mp3</res> <res protocolInfo="http-get:*:image/png:DLNA.ORG_PN=PNG_TN;DLNA.ORG_CI=01;DLNA.ORG_FLAGS=00f00000000000000000000000000000" colorDepth="24" resolution="160x160">URL/albumart/22.png</res> </item> <item id="1269" parentID="20" restricted="1"> <upnp:class>object.item.audioItem.musicTrack</upnp:class> <dc:title>Indian </dc:title> <dc:date>2010-03-17T12:06:32</dc:date> <upnp:albumArtURI dlna:profileID="PNG_TN" xmlns:dlna="urn:schemas-dlna-org:metadata-1-0">URL/albumart/13.png</upnp:albumArtURI> <upnp:icon>URL/albumart/13.png</upnp:icon> <dc:creator>MC</dc:creator> <upnp:artist>MC</upnp:artist> <upnp:album>manimal</upnp:album> <upnp:genre>Rap</upnp:genre> <res protocolInfo="http-get:*:audio/mpeg:DLNA.ORG_PN=MP3;DLNA.ORG_OP=01;DLNA.ORG_CI=0;DLNA.ORG_FLAGS=01700000000000000000000000000000" size="8166707" duration="0:03:24">URL/1269.mp3</res> <res protocolInfo="http-get:*:image/png:DLNA.ORG_PN=PNG_TN;DLNA.ORG_CI=01;DLNA.ORG_FLAGS=00f00000000000000000000000000000" colorDepth="24" resolution="160x160">URL/albumart/13.png</res> </item> <item id="1277" parentID="20" restricted="1"> <upnp:class>object.item.videoItem.movie</upnp:class> <dc:title>IronMan_TeaserTrailer-full_NEW.mpg</dc:title> <dc:date>2010-03-17T12:50:24</dc:date> <upnp:genre>Unknown</upnp:genre> <res protocolInfo="http-get:*:video/mpeg:DLNA.ORG_PN=(NULL);DLNA.ORG_OP=01;DLNA.ORG_CI=0;DLNA.ORG_FLAGS=01700000000000000000000000000000" size="98926592" resolution="1920x1080" duration="0:02:30">URL/1277.mpg</res> </item> </DIDL-Lite> Here in the last Elemnt Item , there are few missing elements like icon,albumArtURi ..etc. Now whhile Ity to access the Values by following LINQ to XML query, var vAudioData = from xAudioinfo in xResponse.Descendants(ns + "DIDL-Lite").Elements(ns + "item").Where(x=>!x.Elements(upnp+"album").l orderby ((string)xAudioinfo.Element(upnp + "artist")).Trim() select new RMSMedia { strAudioTitle = ((string)xAudioinfo.Element(dc + "title")).Trim(),//((string)xAudioinfo.Attribute("audioAlbumcoverImage")).Trim()=="" ? ((string)xAudioinfo.Element("Song")).Trim():"" }; It show object reference is not set to reference of object. I do undersrand this is because of missing elements, is there any way I can pre-check if the elements exist , or check the number of elemnts inside item or any other way. Any help is deeply appreciated. Thanks, Subhen

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  • AndroidManifest from Jars

    - by Jeremy Edwards
    Is it possible to have an AndroidManifest.xml and or resource files in a Jar file and import that into a executable Android project? My goal is to provide styles, resources, and services from a jar library that can be accessed from a main android project for my common tools.

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  • Whats wrong with this ?

    - by Vibin Jith
    dim dataType as String toolTip="Marks And Number[String]" I want to get the [String] alone. dataType = toolTipText.Substring(toolTipText.IndexOf("[") + 1, toolTipText.IndexOf("]") - 1) it shows an error. Regarding the length of the string. What's wrong with my code.I dont know , Some times I have these type of problems . Standing with simple loops or conditions .

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  • How can i change a jquery plugin's option value with my value?

    - by Pandiya Chendur
    I have just jquery pagination plugin to work... But what happens is when i click page number 2 i get the first page and when i click 3 i get second page and so on.... My initial page my current page value changes to 0 instead 1 this causes the problem... My plugin has this, jQuery.fn.pagination = function(maxentries, opts){ opts = jQuery.extend({ items_per_page:10, num_display_entries:10, current_page:0, num_edge_entries:0, link_to:"#", prev_text:"Prev", next_text:"Next", ellipse_text:"...", prev_show_always:true, next_show_always:true, callback:function(){return false;} },opts||{}); current_page is set to 0 ... I have modified the current page value in my jquery function but it doesn't seem to work.... <script type="text/javascript"> var itemsPerPage = 5; var maxNumberOfElementsHere = 17; $(document).ready(function() { getRecordspage(1, itemsPerPage); $(".pager").pagination(maxNumberOfElementsHere, { callback: getRecordspage, current_page: 1, // Look here i have changed this but it doesn't work... items_per_page: itemsPerPage, num_display_entries: 5, next_text: 'Next', prev_text: 'Prev', num_edge_entries: 1 }); }); </script>

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