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Random row from Linq to Sql
What is the best (and fastest) way to retrieve a random row using Linq to SQL when I have a condition, e.g. some field must be true?
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Test if lists share any items in python
... ways to test if two lists a and b share any items. The first option is to convert both to sets and check their intersection, as such:
bool(set(a) & set(b))
Because sets are stored using a hash table in Python, searching them is O(1) (see here for more information about complexity of operator...
SQL Server insert if not exists best practice
I have a Competitions results table which holds team member's names and their ranking on one hand.
8 Answers
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Calling constructor from other constructor in same class
...cal instance of Lens which goes out of scope at the end of the constructor and is NOT assigned to "this". You need to use the constructor chaining syntax in Gishu's post to achieve what the question asks.
– Colin Desmond
May 6 '09 at 14:31
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Easiest way to flip a boolean value?
... it can be helpful to have a TOGGLE(a) macro. This prevents some mistakes and makes it all more readable on narrow screens.
– OJW
Oct 1 '10 at 12:17
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How to take a screenshot programmatically on iOS
...what is working everytime!!!! I have a lot of 3d transforms on the scrreen and other solutions did mess in my screenshot. This works like it should. Thanks a lot!
– AndrewK
Jul 23 '15 at 14:04
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How do you automatically resize columns in a DataGridView control AND allow the user to resize the c
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What happens here is that you set autosize to whathever mode you need and then column by column you store the width it got from autosize calculation, remove autosizing and set width to value you stored before.
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Integer division: How do you produce a double?
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@FabricioPH This works in every situation, and identically to the *1.0 solution.
– Vitruvius
Feb 23 '14 at 7:55
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Get value of c# dynamic property via string
...e you have your PropertyInfo (from GetProperty), you need to call GetValue and pass in the instance that you want to get the value from. In your case:
d.GetType().GetProperty("value2").GetValue(d, null);
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How to pass “Null” (a real surname!) to a SOAP web service in ActionScript 3
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When currentChild.appendChild is passed the string "null", it first converts it to a root XML element with text null, and then tests that element against the null literal. This is a weak equality test, so either the XML containing null is coerced to the null type, or the null type is coerced ...