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How can I clear an HTML file input with JavaScript?
...it does seem reasonable to provide a simple mechanism for clearing already selecting output. I tried using an empty string but it did not work in all browsers, NULL worked in all the browsers I tried (Opera, Chrome, FF, IE11+ and Safari).
EDIT:
Please note that setting to NULL works on all browser...
Update a record without first querying?
...his in EF Core, but the following ensures an UPDATE without having to do a SELECT (tested with EF Core 2 and JET on the .NET Framework 4.6.2):
Ensure your model does not have IsRequired properties
Then use the following template (in VB.NET):
Using dbContext = new MyContext()
Dim beweg...
How to rethrow the same exception in SQL Server
...lare @ErrorMessage nvarchar(max), @ErrorSeverity int, @ErrorState int;
select @ErrorMessage = ERROR_MESSAGE() + ' Line ' + cast(ERROR_LINE() as nvarchar(5)), @ErrorSeverity = ERROR_SEVERITY(), @ErrorState = ERROR_STATE();
if @@trancount > 0 rollback transaction;
raiserror (@ErrorMessa...
Composer Warning: openssl extension is missing. How to enable in WAMP
... Answer also works for EasyPHP (right-click system tray EasyPHP icon, select Configuration | PHP, which opens php.ini in Notepad, search for openssl, uncomment the line)
– stifin
Jan 21 '15 at 12:57
...
Is there a REAL performance difference between INT and VARCHAR primary keys?
...a decent programming background but my SQL experience is limited mostly to SELECT queries
– Rob
Jul 3 '12 at 14:47
...
HTTPS with Visual Studio's built-in ASP.NET Development Server
...
Select the project-file in the Solution Explorer: for example: "WebApplication1".
With pressing ALT+ENTER you enter the project-properties.
Select "DEBUG" on the left side.
Here you can select "Enable SSL".
Then you can...
What's the difference between comma separated joins and join on syntax in MySQL? [duplicate]
...LL
)
Following query will give me all columns and rows from both tables
SELECT
*
FROM table1, table2
Following query will give me columns from first table with table alias called 'table2'
SELECT
*
FROM table1 table2
If you mistakenly forget comma in comma-separated join, second table...
Connecting to Azure website via FTP
...re portal the deployment credentials can be set by going to App Services / select relevant app service item / in the Deployment section / Deployment Center / FTP / Dashboard. You can either chose to use the preprovided App Credentials or assign User Credentials.
In the previous generation azure por...
What's an easy way to read random line from a file in Unix command line?
...he whole file needs to get shuffled by sort before piping it to head. shuf selects random lines from the file, instead and is much faster for me.
– Bengt
Nov 25 '12 at 17:33
1
...
How to download source in ZIP format from GitHub?
... under the Code tab:
If you don't see the button:
Make sure you've selected <> Code tab from right side navigation menu, or
Repo may not have a zip prepared. Add /archive/master.zip to the end of the repository URL and to generate a zipfile of the master branch:
http://github.com/use...