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Entity Framework .Remove() vs. .DeleteObject()
... doesn't allow NULL values) and the relationship is not identifying (which means that the foreign key is not part of the child's (composite) primary key) you have to either add the child to another parent or you have to explicitly delete the child (with DeleteObject then). If you don't do any of the...
What's the difference between a catalog and a schema in a relational database?
...think schema were the "upper wrapper" object before the database itself.
I mean DB.schema.<what_ever_object_name_under_schema> .
...
Set TextView text from html-formatted string resource in XML
... mark: ' becomes \'
ampersand: & becomes &#38; or &amp;
That means you can add your HTML markup without escaping the tags:
<string name="my_string"><b>Hello World!</b> This is an example.</string>
However, to be sure, you should only use <b>, <i> ...
Forms authentication timeout vs sessionState timeout
...ount of time in minutes that the authentication cookie is set to be valid, meaning, that after value number of minutes, the cookie will expire and the user will no longer be authenticated—they will be redirected to the login page automatically. The slidingExpiration=true value is basically saying ...
Differences between fork and exec
...y of exec calls (execl, execle, execve and so on) but exec in context here means any of them.
The following diagram illustrates the typical fork/exec operation where the bash shell is used to list a directory with the ls command:
+--------+
| pid=7 |
| ppid=4 |
| bash |
+--------+
|
| c...
Make a link in the Android browser start up my app?
...
For reference, adding CATEGORY_BROWSABLE means that "The target activity can be safely invoked by the browser to display data referenced by a link — for example, an image or an e-mail message."
– greg7gkb
Jul 9 '12 at 18:42
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Pretty print in MongoDB shell as default
...n I verify in a cli or in mongo shell that this option has been enabled? I mean, is there a special command for it, like mongo --checkConf 'pretty', not by calling db.collection.find().limit(1)
– Green
Aug 23 '15 at 6:24
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What is @RenderSection in asp.net MVC
...quired or not.
@section Bottom{
This message form bottom.
}
That meaning if you want to bottom section in all pages, then you must use false as the second parameter at Rendersection method.
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What is non-blocking or asynchronous I/O in Node.js?
...like ones made in Node - only use one thread to service all requests. This means an instance of Node makes the most out of a single thread. The creators designed it with the premise that the I/O and network operations are the bottleneck.
When requests arrive at the server, they are serviced one at ...
What is the advantage of using async with MVC5?
...case ASP.NET worker threads are used only for a short period of time. This means that there are more threads available in the pool for serving other requests.
So to conclude, use async actions only when you have a true async API inside. If you make a blocking call inside an async action, you are ki...