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Best way to check if object exists in Entity Framework?
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I know this is a very old thread but just incase someone like myself needs this solution but in VB.NET here's what I used base on the answers above.
Private Function ValidateUniquePayroll(PropertyToCheck As String) As Boolean
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C# equivalent of the IsNull() function in SQL Server
... function to check if a value is null, and if it is, return another value. Now I am wondering if there is anything similar in C#.
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How to count items in a Go map?
...ents queued in channel buffer
Here are a couple examples ported from the now-retired SO documentation:
m := map[string]int{}
len(m) // 0
m["foo"] = 1
len(m) // 1
If a variable points to a nil map, then len returns 0.
var m map[string]int
len(m) // 0
Excerpted from Maps - Counting map ele...
What are the differences between type() and isinstance()?
...n versions do however offer extra goodies: isinstance (and issubclass) can now mean more than just "[an instance of] a derived class" (in particular, any class can be "registered" with an ABC so that it will show as a subclass, and its instances as instances of the ABC); and ABCs can also offer extr...
Set padding for UITextField with UITextBorderStyleNone
...I added this 4 years ago, things were different with iOS, and I agree that now it is best to create a subclass. However, if you just want a fast and dirty way to visually inspect your pixel distances, this will do it ;) So its ok for people keep voting!!
– Nate Flink
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How do I copy items from list to list without foreach?
...<Student> lstStudent = db.Students.Where(s => s.DOB < DateTime.Now).ToList().CopyList();
Method:
public static List<T> CopyList<T>(this List<T> lst)
{
List<T> lstCopy = new List<T>();
foreach (var item in lst)
{
us...
Python: changing value in a tuple
...ume that the original poster is creating all of this from scratch doesn't know any better. More often we are dealing with output from another module or data source in a format or type that we cant control.
– rtphokie
Jan 6 '18 at 17:15
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How do you write tests for the argparse portion of a python module? [closed]
...th parameter args=sys.argv[1:]. It already calls the ArgumentParser.parse_known_args-method. With argument args==None it will obtain them with args = _sys.argv[1:] where _sys is an alias for sys. (It might be an update since the answer was posted.)
– Thomas Fauskanger
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Unit testing void methods?
... method is doing 2 things. I'd actually split it into two methods that can now be independently tested.
string[] ExamineLogFileForX( string sFileName );
void InsertStringsIntoDatabase( string[] );
String[] can be easily verified by providing the first method with a dummy file and expected string...
'this' vs $scope in AngularJS controllers
...rom the scope in effect where the directive was encountered in the HTML.)
Now, the pane directive's link function wants to communicate with the tabs directive (which really means it needs to affect the tabs isolate $scope in some way). Events could be used, but another mechanism is to have the pan...