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EF Code First “Invalid column name 'Discriminator'” but no inheritance
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in my case adding not mapped didn't helped. i have notmapped in all viewmodels
– Heemanshu Bhalla
Nov 21 '18 at 10:01
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Where IN clause in LINQ [duplicate]
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this will compare string values, but what about ids??
– Jitendra Pancholi
Feb 22 '13 at 7:32
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Is there a minlength validation attribute in HTML5?
...ise an input field with an empty value will be excluded from constraint validation.
<input pattern=".{3,}" required title="3 characters minimum">
<input pattern=".{5,10}" required title="5 to 10 characters">
If you want to create the option to use the pattern for "empty, or minimum ...
Add margin above top ListView item (and below last) in Android
... is a pretty fine question about the layout of items in a ListView in Android.
5 Answers
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scp (secure copy) to ec2 instance without password
...n the wrong order. This works:
scp -i mykey.pem somefile.txt root@my.ec2.id.amazonaws.com:/
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Resize fields in Django Admin
... is a real waste of space, when, i.e., editing a date field, 8 characters wide, or a CharField, also 6 or 8 chars wide, and then the edit box goes up to 15 or 20 chars.
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Return rows in random order [duplicate]
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SELECT * FROM table
ORDER BY NEWID()
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What is the difference between children and childNodes in JavaScript?
...ems iOS 8.3 (maybe others?) doesn't support .children on XML documents: jsfiddle.net/fbwbjvch/1
– Saebekassebil
May 21 '15 at 10:12
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Canvas is stretched when using CSS but normal with “width” / “height” properties
I have 2 canvases, one uses HTML attributes width and height to size it, the other uses CSS:
8 Answers
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What is the difference between ExecuteScalar, ExecuteReader and ExecuteNonQuery?
... result is the first column of the first row. An example might be SELECT @@IDENTITY AS 'Identity'.
ExecuteReader is used for any result set with multiple rows/columns (e.g., SELECT col1, col2 from sometable).
ExecuteNonQuery is typically used for SQL statements without results (e.g., UPDATE, INSERT,...