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How To Change DataType of a DataColumn in a DataTable?
...Table dtCloned = dt.Clone();
dtCloned.Columns[0].DataType = typeof(Int32);
foreach (DataRow row in dt.Rows)
{
dtCloned.ImportRow(row);
}
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What is the difference between .text, .value, and .value2?
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.Text gives you a string representing what is displayed on the screen for the cell. Using .Text is usually a bad idea because you could get ####
.Value2 gives you the underlying value of the cell (could be empty, string, error, number (double) or boolean)
.Value gives you the same as .Value2 ...
Where do I set my company name?
...e default (me) contact on your Mac's addressbook (that's where XCode looks for your name/company) [sorry just saw the answers below :P]
– Alladinian
Apr 12 '12 at 12:29
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Eclipse Kepler for OS X Mavericks request Java SE 6
...py the file back to its original location (you need administrator rights). For this change to take effect you need to log out of your account (and back in) or restart your computer. The dialog for Java 6 should shouldn't appear anymore and Eclipse should launch just fine using JRE8 (or JRE7). The sa...
Why do Java programmers like to name a variable “clazz”? [closed]
...supercat The Unicode General Category of Punctuation is what I was fishing for. unicode.org/faq/punctuation_symbols.html / I wouldn't design C#. In Java, you get away with a method called fnord and a field called fnord without any issues, capitalisation or nonsense words. I think that will suffice a...
How to deal with cyclic dependencies in Node.js
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Not always. in database models, for example, if I have model A and B, in model A I may want to reference model B (e.g. to join operations), and vice-versa. Therefore, export several A and B properties (the ones that does not depend on other modules) before ...
what is the difference between 'transform' and 'fit_transform' in sklearn
In the sklearn-python toolbox, there are two functions transform and fit_transform about sklearn.decomposition.RandomizedPCA . The description of two functions are as follows
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What does the variable $this mean in PHP?
...the variable $this in PHP all the time and I have no idea what it's used for. I've never personally used it.
10 Answers
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Can you supply arguments to the map(&:method) syntax in Ruby?
...rename the with method to call. In this case, ruby has a built in shortcut for this special method .().
So you could use the above like this:
class Symbol
def call(*args, &block)
->(caller, *rest) { caller.send(self, *rest, *args, &block) }
end
end
a = [1,3,5,7,9]
a.map(&:+...
UIGestureRecognizer on UIImageView
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+1 sat here for ages trying to figure out why my gestures wouldn't work.. "Check that userInteractionEnabled is YES on the UIImageView." Thanks!
– Critter
Apr 11 '11 at 1:12
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