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Best way to check if a Data Table has a null value in it
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162
Try comparing the value of the column to the DBNull.Value value to filter and manage null valu...
Pragma in define macro
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116
If you're using c99 or c++0x there is the pragma operator, used as
_Pragma("argument")
whic...
Set width of TextView in terms of characters
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173
Answering my own question...
And the winner is: set the minEms attribute (android:minEms) !!!...
Convert a character digit to the corresponding integer in C
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15 Answers
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XPath: How to check if an attribute exists?
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167
Short and sweet:
//*[@foo]
Of course you should use a more specific expression. But with [@...
How do .gitignore exclusion rules actually work?
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155
/a/b/c/*
!foo
Seems to work for me (git 1.7.0.4 on Linux). The * is important as otherwise yo...
When to add what indexes in a table in Rails
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176
Should I add "index" to all the foreign keys like "xxx_id"?
It would be better, because i...
“Delegate subtraction has unpredictable result” in ReSharper/C#?
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134
Don't be afraid! The first part of ReSharper's warning only applies to removing lists of deleg...
Can a pointer to base point to an array of derived objects?
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150
You cannot index like that. You have allocated an array of Rectangles and stored a pointer to ...
D3.js: How to get the computed width and height for an arbitrary element?
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edited Feb 4 '15 at 11:50
answered Feb 24 '14 at 15:04
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