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Multi-key dictionary in c#? [duplicate]
...Values
from baseKey in baseDict.Keys
select baseDict[baseKey];
}
}
}
public class MultiKeyDictionary<K1, K2, K3, V> : Dictionary<K1, MultiKeyDictionary<K2, K3, V>> {
public V this[K1 key1, K2 key2, K3 key3] {
get {
...
Cannot delete directory with Directory.Delete(path, true)
...e(path, true) while path or one of the folders/files under path is open or selected in Windows Explorer will throw an IOException. Closing Windows Explorer and rerunning my existing code w/o the try/catch suggested above worked fine.
– David Alpert
Feb 24 '10 ...
What is the most robust way to force a UIView to redraw?
I have a UITableView with a list of items. Selecting an item pushes a viewController that then proceeds to do the following. from method viewDidLoad I fire off a URLRequest for data that is required by on of my subviews - a UIView subclass with drawRect overridden. When the data arrives from the clo...
Is it safe to use Project Lombok? [closed]
...ield name) and finally, use the Breakpoints view to right-click the BP and select Breakpoint Properties... to add a condition. Nice.
UPDATE 4 (Aug 16 '13)
Netbeans doesn't like it when you update your Lombok dependencies in your Maven pom. The project still compiles, but files get flagged for hav...
Why were pandas merges in python faster than data.table merges in R in 2012?
...re-computed indexes for various columns to accelerate operations like data selection and merges. In this case (database joins) pandas' DataFrame contains no pre-computed information that is being used for the merge, so to speak it's a "cold" merge. If I had stored the factorized versions of the join...
What are the benefits of dependency injection containers?
...ause the really cool aspects of DI require the ability to programmatically select objects and configure and inject them into other objects using a system external and independent to the objects themselves.
A language must provide good support for both normal Object Oriented programming techniques a...
What is the correct way to create a single-instance WPF application?
...nal feelings) that it is still better to open a new app when file assoc is selected. But I understand better the question asked now. Thanks !
– Eric Ouellet
Dec 6 '13 at 16:07
...
How to design a multi-user ajax web application to be concurrently safe
...resolver JS, is allowed another attempt to change the value.
Once the user selected a value he deems right, the process starts over from case 2 (or case 3 if someone else was faster, again)
Some words on Performance & Scalability
HTTP Polling vs. HTTP "pushing"
Polling creates requests, one...
Many-to-many relationship with the same model in rails?
...ails generates in the log file. You'll find something like the following:
SELECT * FROM "posts"
INNER JOIN "post_connections" ON "posts".id = "post_connections".post_b_id
WHERE ("post_connections".post_a_id = 1 )
To make the association bi-directional, we'd have to find a way to make Rails OR the...
Undefined behavior and sequence points
...er: that reason is concurrency. Unspecified order of elaboration is merely selection of one of several possible serial orderings, this is quite different to before and after orderings, because if there is no specified ordering, concurrent evaluation is possible: not so with the old rules. For exampl...