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html select only one checkbox in a group

So how can I only allow a user to select only one checkbox? 16 Answers 16 ...
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What can I do with a moved-from object?

... I can do with an object once it has been moved from? I used to think that all you can do with a moved-from object is do destruct it, but that would not be sufficient. ...
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T-SQL stored procedure that accepts multiple Id values

...sing the List as Many Parameters. Tedious and error prone, but simple. Really Slow Methods. Methods that uses charindex, patindex or LIKE. I really can't recommend enough to read the article to learn about the tradeoffs among all these options. ...
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Are Databases and Functional Programming at odds?

... First of all, I would not say that CLOS (Common Lisp Object System) is "pseudo-OO". It is first class OO. Second, I believe that you should use the paradigm that fits your needs. You cannot statelessly store data, while a function ...
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How to know user has clicked “X” or the “Close” button?

...anted to perform something specific on the FormClosing event, like closing all MdiChildren before closing the MDIContainerForm, or event checking for unsaved changes. Under these circumstances, we don't need, according to me, to differentiate from either buttons. Closing by ALT+F4 will also trigger...
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How to fix corrupted git repository?

... have a corrupted local repo, but a trusted remote. # This script replaces all your history with that of the remote. # If there is a .git, it is backed up as .git_old, removing the last backup. # This does not affect your working tree. # # This does not currently work with submodules! # This will ab...
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How to recognize USB devices in Virtualbox running on a Linux host? [closed]

...and log in again Attach to your PC the USB devices you want to be automatically mounted in the VM (virtual machine). Open Virtualbox Select your VM and go to "Machine" -> "Settings" -> "USB". Check "Enable USB Controller"; click on the icon with the USB plug and the plus, and click on the devi...
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Nested using statements in C#

... Not sure if I find that more readable at all. If anything it breaks the look of nested code. And it looks as if the first using statement is empty and unused. But, I guess what ever works... :/ – Jonathon Watney Aug 25 '09 at 2...
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How to alter a column and change the default value?

...t use this if you need to change only the DEFAULT value. This will process all the rows of the table for nothing (very long on huge tables). Use instead ALTER TABLE <table_name> ALTER COLUMN <column_name> SET DEFAULT <value> which is instant. – dolmen ...
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Where am I? - Get country

An android mobile actually does know quite well where it is - but is there a way of retrieving the country by something like a country code? ...