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Sometimes adding a WCF Service Reference generates an empty reference.cs

... When it happened to me I found that I also needed to change the Collection Type from ObjectModel.ObservableCollection to Generic.List – Yossi Dahan Dec 8 '10 at 15:41 ...
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CALayer with transparent hole in it

...dRect:CGRectMake(0, 0, 2.0*radius, 2.0*radius) cornerRadius:radius]; [path appendPath:circlePath]; [path setUsesEvenOddFillRule:YES]; CAShapeLayer *fillLayer = [CAShapeLayer layer]; fillLayer.path = path.CGPath; fillLayer.fillRule = kCAFillRuleEvenOdd; fillLayer.fillColor = [UIColor grayColor].CGCo...
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iPhone/iOS JSON parsing tutorial [closed]

As a learning experience, I want to make an iPhone application that calls a webserver/webservice, retrieves a JSON response, and uses that response to populate the rows of a UITableView (assuming it converts the JSON into an NSArray first). ...
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What does “Document-oriented” vs. Key-Value mean when talking about MongoDB vs Cassandra?

...e page's data with a single query and are well suited for content oriented applications (which is why big sites like Facebook or Amazon like them). Other kinds of NoSQL databases include column-oriented stores, graph databases and even object databases. But this goes beyond the question. See also ...
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Is there a REAL performance difference between INT and VARCHAR primary keys?

...te key. Only you can assess if the benefit of this is significant in your application. That is, you can measure the queries in your application that are the most important to be speedy, because they work with large volumes of data or they are executed very frequently. If these queries benefit f...
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Best practice for instantiating a new Android Fragment

I have seen two general practices to instantiate a new Fragment in an application: 13 Answers ...
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Why use a READ UNCOMMITTED isolation level?

... know it, probably decades before Sql Server introduced it. I was quite disappointed when starting with SQL Server and I found out that all concurrency problems were solved using "primitive" locking mechanisms. Never saw "Read uncommitted" in Oracle. And the practitioner are as happy as the astronau...
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How to avoid installing “Unlimited Strength” JCE policy files when deploying an application?

I have an app that uses 256-bit AES encryption which is not supported by Java out of the box. I know to get this to function correctly I install the JCE unlimited strength jars in the security folder. This is fine for me being the developer, I can install them. ...
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How to create a HTTP server in Android? [closed]

...thod. You also need to stop and resume this thread as needed. The simplest approach seems to kill the waiting thread by closing the ServerSocket. If you only need a server while your activity is on the top, starting and stopping ServerSocket thread can be rather elegantly tied to the activity life c...
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What data type to use for money in Java? [closed]

...oney and Currency API (JSR 354). You can use this API in, provided you add appropriate dependencies to your project. For Java 8, add the following reference implementation as a dependency to your pom.xml: <dependency> <groupId>org.javamoney</groupId> <artifactId>mon...