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What can I do to resolve a “Row not found or changed” Exception in LINQ to SQL on a SQL Server Compa
...the exception in your global exception handler:
protected void Application_Error(object sender, EventArgs e)
{
Exception ex = Server.GetLastError();
//TODO
}
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Standard deviation of a list
...calculating the standard deviation of iterables like yours:
>>> A_rank = [0.8, 0.4, 1.2, 3.7, 2.6, 5.8]
>>> import statistics
>>> statistics.stdev(A_rank)
2.0634114147853952
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Select first row in each GROUP BY group?
... SELECT p.id,
p.customer,
p.total,
ROW_NUMBER() OVER(PARTITION BY p.customer
ORDER BY p.total DESC) AS rk
FROM PURCHASES p)
SELECT s.*
FROM summary s
WHERE s.rk = 1
Supported by any database:
But you need to add logic...
Cast a Double Variable to Decimal
... No because it will throw an OverflowException double vol_y = (double)Decimal.MaxValue + 10E+28D; Console.WriteLine("Convert.ToDecimal(vol_y) = " + Convert.ToDecimal(vol_y));
– ToXinE
Dec 1 '14 at 15:23
...
Can someone explain the traverse function in Haskell?
...an also compare it to Foldable, which defines the related function traverse_.
traverse_ :: (Foldable t, Applicative f) => (a -> f b) -> t a -> f ()
So you can see that the key difference between Foldable and Traversable is that the latter allows you to preserve the shape of the struct...
Integrating Dropzone.js into existing HTML form with other fields
...opzone.autoDiscover = false;
$("#dZUpload").dropzone({
url: "hn_SimpeFileUploader.ashx",
addRemoveLinks: true,
success: function (file, response) {
var imgName = response;
file.previewElement.classList.add("dz-success");
console.log("Su...
Best way to show a loading/progress indicator?
...
From the Android Developer website: STYLE_SPINNER Creates a ProgressDialog with a circular, spinning progress bar.
– Tequilaman
Dec 26 '14 at 1:15
...
List directory in Go
...il.ReadDir("./")
if err != nil {
log.Fatal(err)
}
for _, f := range files {
fmt.Println(f.Name())
}
}
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foll...
Manually map column names with class properties
...
This works fine:
var sql = @"select top 1 person_id PersonId, first_name FirstName, last_name LastName from Person";
using (var conn = ConnectionFactory.GetConnection())
{
var person = conn.Query<Person>(sql).ToList();
return person;
}
Dapper has no facilit...
Sorting a tab delimited file
... Ruby. Here's some example code:
#!/usr/bin/perl -w
use strict;
my $sort_field = 2;
my $split_regex = qr{\s+};
my @data;
push @data, "7 8\t 9";
push @data, "4 5\t 6";
push @data, "1 2\t 3";
my @sorted_data =
map { $_->[1] }
sort { $a->[0] <=> $b->[0] }
map { [ ( sp...