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Remove/hide a preference from the screen
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Rob, I just tested the above code in an API22 AVD and it's working just fine. Make sure your preference XML content matches your code. For the above example the SwitchPreference can be anywhere, but you need the PreferenceCategorys to be...
How to sort an array in descending order in Ruby
...4447)
I think it's interesting that @Pablo's sort_by{...}.reverse! is fastest. Before running the test I thought it would be slower than "-a[:bar]" but negating the value turns out to take longer than it does to reverse the entire array in one pass. It's not much of a difference, but every little ...
Combine two columns of text in pandas dataframe
...'].astype(str) + df['quarter']
UPDATE: Timing graph Pandas 0.23.4
Let's test it on 200K rows DF:
In [250]: df
Out[250]:
Year quarter
0 2014 q1
1 2015 q2
In [251]: df = pd.concat([df] * 10**5)
In [252]: df.shape
Out[252]: (200000, 2)
UPDATE: new timings using Pandas 0.19.0
Timing...
iOS Detect 3G or WiFi
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Can we define what host to test for that, like we could with Reachability.reachabilityWithHostName ?
– agirault
Jul 2 at 22:49
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WCF service startup error “This collection already contains an address with scheme http”
...light control which makes calls to that WCF service. On my development and test servers it works great.
7 Answers
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Why are local variables not initialized in Java?
...ompiler understands that if check (but i m just doing this off memory, not tested).
– Chii
Jan 6 '09 at 9:52
6
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How do I delete multiple rows in Entity Framework (without foreach)
...lthough that answer was for 3.5. For 4.0 I would probably use the new ExecuteStoreCommand API under the hood, instead of dropping down to the StoreConnection.
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Gson: How to exclude specific fields from Serialization without annotations
...me. Here is what your ExclusionStrategy should look like
public class TestExclStrat implements ExclusionStrategy {
public boolean shouldSkipClass(Class<?> arg0) {
return false;
}
public boolean shouldSkipField(FieldAttributes f) {
return ...
Find nearest latitude/longitude with an SQL query
...e, it's best to not sqrt the distance variable but instead square the '25' test value... later sqrt the results that have passed if you need to show the distance
– sradforth
Jan 30 '12 at 13:46
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Auto increment primary key in SQL Server Management Studio 2012
...want to add this to an existing column, use an ALTER TABLE command.
Edit:
Tested a bit, and I can't find a way to change the Identity properties via the Column Properties window for various tables. I guess if you want to make a column an identity column, you HAVE to use an ALTER TABLE command.
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