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How do you bind an Enum to a DropDownList control in ASP.NET?
...as it inserts the name of the enumeration member in the ListItem's value. Converting to int would work in most cases, but not if the enum is a uint, ulong, or long.
– Trisped
Mar 28 '12 at 23:53
...
Difference between Select and ConvertAll in C#
...INQ extension method and works on all IEnumerable<T> objects whereas ConvertAll is implemented only by List<T>. The ConvertAll method exists since .NET 2.0 whereas LINQ was introduced with 3.5.
You should favor Select over ConvertAll as it works for any kind of list, but they do the sam...
List the queries running on SQL Server
...nning SPIDs on a SQL 2000 or SQL 2005 server:
select
P.spid
, right(convert(varchar,
dateadd(ms, datediff(ms, P.last_batch, getdate()), '1900-01-01'),
121), 12) as 'batch_duration'
, P.program_name
, P.hostname
, P.loginame
from master.dbo.sysprocesses P
where ...
How do you use the “WITH” clause in MySQL?
I am converting all my SQL Server queries to MySQL and my queries that have WITH in them are all failing. Here's an example:
...
Which are more performant, CTE or temporary tables?
...en with two CTEs in SQL server. It was taking 28sec.
I spent two minutes converting them to temp tables and the query took 3 seconds
I added an index to the temp table on the field it was being joined on and got it down to 2 seconds
Three minutes of work and now its running 12x faster all by rem...
SQL select only rows with max value on a column [duplicate]
...d the same "max" as numeric comparison of the two numbers and it's easy to convert back to the original number using the substring function (which is available in one form or another pretty much everywhere).
share
|...
c# datatable to csv
...ardContent also handles few edge cases of values that contain ,. ", \t (it converts tab to space)
– Slai
Nov 28 '16 at 13:43
2
...
Pandas - Get first row value of a given column
...c('Btime')] = x
The latter method is a bit faster, because df.loc has to convert the row and column labels to
positional indices, so there is a little less conversion necessary if you use
df.iloc instead.
df['Btime'].iloc[0] = x works, but is not recommended:
Although this works, it is taking ...
What does the “map” method do in Ruby?
...example:
names = ['danil', 'edmund']
# here we map one array to another, convert each element by some rule
names.map! {|name| name.capitalize } # now names contains ['Danil', 'Edmund']
names.each { |name| puts name + ' is a programmer' } # here we just do something with each element
The output:...
How does Trello access the user's clipboard?
...
Daniel LeCheminant's code didn't work for me after converting it from CoffeeScript to JavaScript (js2coffee). It kept bombing out on the _.defer() line.
I assumed this was something to do with jQuery deferreds, so I changed it to $.Deferred() and it's working now. I tested i...