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Select Multiple Fields from List in Linq
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Anonymous types allow you to select arbitrary fields into data structures that are strongly typed later on in your code:
var cats = listObject
.Select(i => new { i.category_id, i.category_name })
.Distinct()
.OrderByDescending(i => i.c...
Set select option 'selected', by value
I have a select field with some options in it. Now I need to select one of those options with jQuery. But how can I do that when I only know the value of the option that must be selected?
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Should I pass a shared_ptr by reference? [duplicate]
...value, it gets costly (because they're a lot more expensive to copy than a raw pointer). If you never do it, then there's no point in using a shared pointer in the first place.
Copy the shared pointer when a new function or object needs to share ownership of the pointee.
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How do I get Windows to go as fast as Linux for compiling C++?
...ss to Windows source code, it is rarely taken advantage of). Look at this selection of Unix-related performance papers: http://www.eecs.harvard.edu/margo/papers/ or look up the history of papers by Osterhaus, Henry Spencer, or others. Heck, one of the biggest (and most enjoyable to watch) debates i...
How can I preview a merge in git?
...ve a git branch (the mainline, for example) and I want to merge in another development branch. Or do I?
11 Answers
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PostgreSQL DISTINCT ON with different ORDER BY
...llowing approaches:
The general solution that should work in most DBMSs:
SELECT t1.* FROM purchases t1
JOIN (
SELECT address_id, max(purchased_at) max_purchased_at
FROM purchases
WHERE product_id = 1
GROUP BY address_id
) t2
ON t1.address_id = t2.address_id AND t1.purchased_at = t2...
REST URI convention - Singular or plural name of resource while creating it
...at in some RESTful services they use different resource URI for update/get/delete and Create. Such as
22 Answers
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DISTINCT for only one column
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If you are using SQL Server 2005 or above use this:
SELECT *
FROM (
SELECT ID,
Email,
ProductName,
ProductModel,
ROW_NUMBER() OVER(PARTITION BY Email ORDER BY ...
How can I get the client's IP address in ASP.NET MVC?
I'm totally new to the ASP.NET MVC stack, and I was wondering what happened to the simple Page object and the Request ServerVariables object?
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What is the difference between 'content' and 'text'
...rations in the data to do their own decoding and so they should be fed the raw r.content, not the coverted r.text.
– tdelaney
Mar 6 '18 at 19:47
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