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Update a record without first querying?
Lets say I query the database and load a list of items. Then I open one of the items in a detail view form, and instead of re-querying the item out of the database, I create an instance of the item from the datasource in the list.
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How can I tell if a DOM element is visible in the current viewport?
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Update: Time marches on and so have our browsers. This technique is no longer recommended and you should use Dan's solution if you do not need to support version of Internet Explorer before 7.
Original solution (now outdated):
This will check if ...
Save icon: Still a floppy disk? [closed]
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The floppy disk icon has become the standard for saving files. It's a highly recognizable icon and there's no reason to change that. Consistency between applications is a wonderful thing.
I suspect that over time the icon will grow more stylized and less like an...
Is It Possible to NSLog C Structs (Like CGRect or CGPoint)?
...t doesn't work is because %@ signifies an object. A CGPoint is a C struct (and so are CGRects and CGSizes).
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Add single element to array in numpy
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This command does not alter the a array. However, it returns a new modified array. So, if a modification is required then a = numpy.append(a,a[0]) must be used.
– Amjad
Oct 16 '17 at 15:24
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Android ADB device offline, can't issue commands
I can't connect to my device anymore using ADB through the command line or in Eclipse .
58 Answers
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How to not wrap contents of a div?
...he buttons are too long, they wrap – one button stays on the first line, and the next button follows underneath it instead of adjacent to it.
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What do I use for a max-heap implementation in Python?
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The easiest way is to invert the value of the keys and use heapq. For example, turn 1000.0 into -1000.0 and 5.0 into -5.0.
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TypeError: 'dict_keys' object does not support indexing
.... . . Or just list(d) which will give you a list of keys on both python2.x and python3.x without making any copies :-)
– mgilson
Aug 28 '14 at 5:15
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Binding a WPF ComboBox to a custom list
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You set the DisplayMemberPath and the SelectedValuePath to "Name", so I assume that you have a class PhoneBookEntry with a public property Name.
Have you set the DataContext to your ConnectionViewModel object?
I copied you code and made some minor modif...