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The entity cannot be constructed in a LINQ to Entities query
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BTW this does bite you if you try to persist the results of GetProducts() since EF cannot find the mapping for PseudoProduct e.g. "System.InvalidOperationException: Mapping and metadata information could not be found for EntityType 'b...
Making a UITableView scroll when text field is selected
... Yes, but especially on the iPad we need a way to do this that doesn't involve the UITableViewController.
– Bob Spryn
Jul 17 '11 at 1:19
13
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Undo a Git merge that hasn't been pushed yet
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A further tip is to use the --merge switch instead of --hard since it doesn't reset files unnecessarily:
git reset --merge ORIG_HEAD
--merge
Resets the index and updates the files in the working tree that are different between <commit> and HEAD, but keeps those which are differ...
How can I add a boolean value to a NSDictionary?
...mber.
It has init... and number... methods that take booleans, just as it does integers and so on.
From the NSNumber class reference:
// Creates and returns an NSNumber object containing a
// given value, treating it as a BOOL.
+ (NSNumber *)numberWithBool:(BOOL)value
and:
// Returns an NSNum...
What is the “reactor” in Maven?
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Why does the maven site say that this plugin is "retired"?
– Mopparthy Ravindranath
Feb 21 '15 at 14:56
4
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How did this person code “Hello World” with Microsoft Paint?
...h a way so that, viewed as a bitmap, you actually saw the source code that does the same thing. If you are seriously interested in such results, read e.g. about the Kleene's fixed point theorem.
Program-as-an-image can also be viewed as a form of code obfuscation. Not that it were particularly prac...
Function return value in PowerShell
...ny language including C#. Also importantly doing [boolean]$a in powershell does not actually declare the variable $a. You can confirm this by following that line with the line $a.gettype() and compare that output to when you declare and initialize with the string $a = [boolean]$false.
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scopes with lambda and arguments in Rails 4 style?
... Note that if you are using Ruby 1.9, the short lambda syntax does not allow a space between the arrow and a parameter (scope :find_lazy, ->(param)). In Ruby 2+, the space is allowed. More info here...
– furman87
Aug 22 '15 at 19:07
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How do I use the includes method in lodash to check if an object is in the collection?
...ou want to add object entry to an array of objects numbers, only if entry does not exist already.
let numbers = [
{ to: 1, from: 2 },
{ to: 3, from: 4 },
{ to: 5, from: 6 },
{ to: 7, from: 8 },
{ to: 1, from: 2 } // intentionally added duplicate
];
let entry = { to: 1, from: 2...
What are your favorite extension methods for C#? (codeplex.com/extensionoverflow)
... odds with the name In. A method name is supposed to be describing what it does, but In doesn't do so. I've called it IsAnyOf<T>(...), but I guess IsIn<T>(...) would be adequate as well.
– JBSnorro
Aug 19 '11 at 0:41
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