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Entity Framework code first unique column
...tring UserName{get;set;}
Unique ID
,
I have added decoration [Key] over my column and done.
Same solution as described here: https://msdn.microsoft.com/en-gb/data/jj591583.aspx
IE:
[Key]
public int UserId{get;set;}
Alternative answers
using data annotation
[Key, DatabaseGenerated(DatabaseG...
When should you not use virtual destructors?
...only if I have virtual methods. Once I have virtual methods, I don't trust myself to avoid instantiating it on the heap or storing a pointer to the base class. Both of these are extremely common operations and will often leak resources silently if the destructor is not declared virtual.
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Escape single quote character for use in an SQLite query
...t in the database. Try to replace the string with a single quote . here is my solution. example if you have a string that contain's a single quote.
String mystring = "Sample's";
String myfinalstring = mystring.replace("'","''");
String query = "INSERT INTO "+table name+" ("+field1+") values ('"+m...
SQL multiple column ordering
...
SELECT *
FROM mytable
ORDER BY
column1 DESC, column2 ASC
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Android Studio: Plugin with id 'android-library' not found
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I needed to add this to my project's build.gradle, adding it to one module gradle file didn't help
– syonip
Sep 6 '16 at 14:17
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How to verify that method was NOT called in Moq?
... edited Jul 20 at 6:55
Shimmy Weitzhandler
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answered Aug 5 '10 at 10:14
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How to read the value of a private field from a different class in Java?
...ceptions (either catch them or declare them to be rethrown). I've modified my answer a little. It might be good for you to write a small test case to play around and see what happens
– oxbow_lakes
Jul 28 '09 at 20:42
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Is there a practical use for weak references? [duplicate]
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Yeah :( My solution to the caching problem so far was to just use a strong cache of a particular size and fine tune the cache size if necessary. Far from optimal if the program will run on lots of different configurations - in that c...
How do I escape reserved words used as column names? MySQL/Create Table
...and one problem is a class may have a field name key which is a reserved MySQL keyword. How do I escape it in a create table statement? (Note: The other problem below is text must be a fixed size to be indexed/unique)
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gdb: how to print the current line or find the current line number?
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Ah, so although my program was compiled with -g to contain debug info, I'm currently in a stack frame, taken from one of shared libraries, which apparently wasn't compiled to contain line information. Thanks, kumar.
– B...