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Entity Framework rollback and remove bad migration
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You have 2 options:
You can take the Down from the bad migration and put it in a new migration (you will also need to make the subsequent changes to the model). This is effectively rolling up to a better version.
I use this option on things that have gone to multip...
Why does Google +1 record my mouse movements? [closed]
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Isn't Math.random() seeded from the current timestamp? If so, with a widely deployed button like this, you'd expect a lot of collisions. Might explain the extra efforts.
– Yahel
Jul 24 '11 at 3:12
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How do I close a single buffer (out of many) in Vim?
...of caution: "the w in bw does not stand for write but for wipeout!"
More from manuals:
:bd
Unload buffer [N] (default: current
buffer) and delete it from
the buffer list. If the buffer was changed, this fails,
unless when [!] is specified, in which case ...
Accessing UI (Main) Thread safely in WPF
... @l46kok This can have different reasons (console app, hosting from winforms etc.). As @WolfgangZiegler said, you can use any UIElement for it. I just usually use Application.Current for it since it looks cleaner to me.
– Botz3000
Jul 24 '12 at 6:51...
Using the rJava package on Win7 64 bit with R
...windows-i586.exe and jdk-8u172-windows-x64.exe and then the binary package from CRAN:
install.packages("rJava")
The binary package from CRAN should pick up on the jvm by itself. Experts only: to build rJava from source, you need the --merge-multiarch flag:
install.packages('rJava', type = 'sour...
Determine if Android app is being used for the first time
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@Alan you are right, this answer is no longer valid from Android Marshmallow.
– Ioane Sharvadze
May 12 '17 at 17:03
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How to import a Python class that is in a directory above?
I want to inherit from a class in a file that lies in a directory above the current one.
7 Answers
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Fastest Way of Inserting in Entity Framework
...he context after SaveChanges and create a new one. This clears the context from all entites, SaveChanges doesn't do that, the entities are still attached to the context in state Unchanged. It is the growing size of attached entities in the context what slows down the insertion step by step. So, it i...
Postgresql not creating db with “createdb” as superuser, yet not outputting errors [duplicate]
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createdb is a command line utility which you can run from bash and not from psql.
To create a database from psql, use the create database statement like so:
create database [databasename];
Note: be sure to always end your SQL statements with ;
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Async image loading from url inside a UITableView cell - image changes to wrong image while scrollin
...e];
return cell;
}
The above code addresses a few problems stemming from the fact that the cell is reused:
You're not initializing the cell image before initiating the background request (meaning that the last image for the dequeued cell will still be visible while the new image is download...