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Using the Android Application class to persist data

..., the Application class does not have the same life-cycle (i.e. it is, for all intents and purposes, always instantiated). Does it make sense to store the state information inside of the application class and then reference it from the Activity, or is that generally not the "acceptable" method due ...
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What can I do to resolve a “Row not found or changed” Exception in LINQ to SQL on a SQL Server Compa

... Thats nasty, but simple: Check if the data types for all fields in the O/R-Designer match the data types in your SQL table. Double check for nullable! A column should be either nullable in both the O/R-Designer and SQL, or not nullable in both. For example, a NVARCHAR column "...
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Listening for variable changes in JavaScript

...ve an array of listeners instead of a single one and then instead of just calling this.aListener(val), you would have to loop through all listener functions and call each one passing val. Typically, the method is called addListener instead of registerListener. – Akira ...
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std::unique_lock or std::lock_guard?

...er you need to relock the guard. std::unique_lock has other features that allow it to e.g.: be constructed without locking the mutex immediately but to build the RAII wrapper (see here). std::lock_guard also provides a convenient RAII wrapper, but cannot lock multiple mutexes safely. It can be us...
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将Linux代码移植到Windows的简单方法 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...(Header File)的包含问题。在Config.h中定义了很多类似HAVE_XXXX_H。比如定义HAVE_CONFIG_H为1表示工程中可以使用config.h。 #define HAVE_MALLOC_H 1表示可以在工程中使用Malloc.h头文件。通过调整这些定义值,可以去除一些Windows平台下面没有...
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What's Mongoose error Cast to ObjectId failed for value XXX at path “_id”?

...ng a request to /customers/41224d776a326fb40f000001 and a document with _id 41224d776a326fb40f000001 does not exist, doc is null and I'm returning a 404 : ...
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Dependency graph of Visual Studio projects

...pendteam the extra details and screenshots are OK. but since this is originally my answer, it looks like your edit somehow makes me I look like work at NDepend. Please add new answer with your edit, and also emphasize your new answer is addition to my answer. Thanks before :) –...
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How to delete all the rows in a table using Eloquent?

... The reason MyModel::all()->delete() doesn't work is because all() actually fires off the query and returns a collection of Eloquent objects. You can make use of the truncate method, this works for Laravel 4 and 5: MyModel::truncate(); Th...
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How to ignore certain files in Git

... How to ignore new files Globally Add the path(s) to your file(s) which you would like to ignore to your .gitignore file (and commit them). These file entries will also apply to others checking out the repository. Locally Add the path(s) to your file(...
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Update relationships when saving changes of EF4 POCO objects

...ost to context. After attaching object to context the state of the object, all related objects and all relations is set to Unchanged. Use context.ObjectStateManager.ChangeObjectState to set your BlogPost to Modified Iterate through Tag collection Use context.ObjectStateManager.ChangeRelationshipStat...