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Quickly create large file on a Windows system
... Just want to check if this is a sparse file or does the file actually have data in it?
– slolife
Jun 2 '11 at 17:35
2
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Fade/dissolve when changing UIImageView's image
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I also am setting my image after a SDWebImages callback that way, but for some reason in my CollectionViewCell the image of the first cell, is initially the one from the last visible cell if all my cells update. I guess it's some kind of caching the presentationLayer or so...
XPath to find elements that does not have an id or class
How can I get all tr elements without id attribute?
4 Answers
4
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Is it safe to get values from a java.util.HashMap from multiple threads (no modification)?
...ting thread makes the reference to the map visible to other threads.
Basically, the only possible race here is between the construction of the HashMap and any reading threads that may access it before it is fully constructed. Most of the discussion is about what happens to the state of the map obje...
examining history of deleted file
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When you want to look at old files you really should know the difference between:
svn cat http://server/svn/project/file -r 1234
and
svn cat http://server/svn/project/file@1234
The first version looks at the path that is now available as http://server/svn/proj...
Does Foreign Key improve query performance?
...n FK does not create an associated index, and you should create indexes on all FK fields to improve look up times.
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When do I need to use Begin / End Blocks and the Go keyword in SQL Server?
... a way of isolating one part of the script from another, but submitting it all in one block.
BEGIN and END are just like { and } in C/++/#, Java, etc.
They bound a logical block of code. I tend to use BEGIN and END at the start and end of a stored procedure, but it's not strictly necessary ther...
Why am I getting tree conflicts in Subversion?
...h of my trunk and was merging changes from my trunk into my branch periodically and everything was working fine. Today I went to merge the branch back down into the trunk and any of the files that were added to my trunk after the creation of my branch were flagged as a "tree conflict". Is there a wa...
What approaches are available to dummy design-time data in WPF?
...singly seeing a need for design-time data binding. For simple cases, the FallbackValue property works very nicely (Textboxes and TextBlocks, etc). But especially when dealing with ItemsControl and the like, one really needs sample data to be visible in the designer so that you can adjust and twe...
Xcode : failed to get the task for process
...eck that this is done in both the Project and Target build settings (especially Target has the highest priority, so if you like me spend 30 minutes by changing the Project and you didn't realize the Target was different, you will learn this...)
– viggio24
May 5...