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Best way to check if object exists in Entity Framework?
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hi. how can we check if it exists and after that select all its data?
– virtouso
Apr 7 '15 at 1:27
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In Python, what happens when you import inside of a function? [duplicate]
...there is a name clash or other reason you don't want the module or symbols from the module available everywhere, you may only want to import it in a specific function. (Of course, there's always from my_module import my_function as f for those cases.)
In general practice, it's probably not that ben...
How to read the content of a file to a string in C?
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Don't forget to check the return values from those system calls!
– Toby Speight
Feb 28 '18 at 10:50
3
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Node.js project naming conventions for files & folders
...underscores is for internal node packages, and this is simply a convention from the early days.
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onKeyPress Vs. onKeyUp and onKeyDown
...tabbing.
Scenario:
The user types 12345 into an input element.
The user selects the text 12345.
The user types the letter A.
When the keypress event fires after entering the letter A, the text box now contains only the letter A.
But:
Field.val() is 12345.
$Field.val().length is 5
The user se...
How can I run MongoDB as a Windows service?
...ontrol Manager: Access is denied. (5)
and if you try to start the service from a non-admin console, (i.e. net start MongoDB or Start-Service MongoDB in PowerShell), you'll get a response like this:
System error 5 has occurred.
Access is denied.
or this:
Start-Service : Service 'MongoDB (MongoDB)' ...
How do you perform a CROSS JOIN with LINQ to SQL?
... it.
var combo = from p in people
from c in cars
select new
{
p.Name,
c.Make,
c.Model,
c.Colour
};
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How to convert OutputStream to InputStream?
I am on the stage of development, where I have two modules and from one I got output as a OutputStream and second one, which accepts only InputStream . Do you know how to convert OutputStream to InputStream (not vice versa, I mean really this way) that I will be able to connect these two part...
Writing outputs to log file and console
...ich redirects all the outputs ( echo messages ) and errors to the log file from the executed script using the following code:
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Unable to login to SQL Server + SQL Server Authentication + Error: 18456
...tion.
You can access this by
Right click on instance (IE SQLServer2008)
Select "Properties"
Select "Security" option
Change "Server authentication" to "SQL Server and Windows Authentication mode"
Restart the SQLServer service
Right click on instance
Click "Restart"
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