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Entity Framework: There is already an open DataReader associated with this Command
...My understanding of this problem is that there are multiple data retrieval commands executed on single connection (or single command with multiple selects) while next DataReader is executed before first one has completed the reading. The only way to avoid the exception is to allow multiple nested Da...
Is it possible to put CSS @media rules inline?
...dia is with a separate rule in your stylesheet, which means you'll need to come up with a selector for it.
A dummy span selector would look like this, but if you're targeting a very specific element you will need a more specific selector:
span { background-image: url(particular_ad.png); }
@media ...
How to delete all rows from all tables in a SQL Server database?
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How to move the cursor word by word in the OS X Terminal
I know the combination Ctrl + A to jump to the beginning of the current command, and Ctrl + E to jump to the end.
17 A...
startsWith() and endsWith() functions in PHP
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@MrHus I would recommend using multi-byte safe functions, e.g. mb_strlen and mb_substr
– 19Gerhard85
Apr 25 '16 at 8:49
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Linq to Entities - SQL “IN” clause
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{
//Do stuff on each selected user;
}
Syntactically this looks more complex, and you have to understand the concept of lambda expressions or delegates to really figure out what's going on, but as you can see, this condenses the code a fair amount.
It all comes down to your coding style and p...
How to check for an undefined or null variable in JavaScript?
...ou don't care about
0 and false, using if(obj.undefProp) is ok. There's a common idiom based on this fact:
value = obj.prop || defaultValue
which means "if obj has the property prop, assign it to value, otherwise assign the default value defautValue".
Some people consider this behavior confusin...
Difference between string object and string literal [duplicate]
...ring literal notation when possible. It is easier to read and it gives the compiler a chance to optimize your code.
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CSS force image resize and keep aspect ratio
...CSS:</p>
<img width="400" height="400" src="http://i.stack.imgur.com/aEEkn.png">
This will make image shrink if it's too big for specified area (as downside, it will not enlarge image).
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How to launch html using Chrome at “--allow-file-access-from-files” mode?
...n extension for your executable... So if you move to Chrome's folder, this command will probably work too :
> .\chrome.exe --allow-file-access-from-files
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