大约有 23,000 项符合查询结果（耗时：0.0339秒） [XML]
Is it possible to Pivot data using LINQ?
...r column ordering
var r = s.Pivot3(e => e.custID, e => e.OrderDate.ToString("MMM-yyyy")
, lst => lst.Sum(e => e.Qty));
// order r(esult) by CustID
(+) generic implementation
(-) definitely slower than Amy B's
Can anyone improve my implementation (i.e. the method does the orderin...
.NET Global exception handler in console application
...an work from perhaps:
using System;
class Program {
static void Main(string[] args) {
System.AppDomain.CurrentDomain.UnhandledException += UnhandledExceptionTrapper;
throw new Exception("Kaboom");
}
static void UnhandledExceptionTrapper(object sender, UnhandledExceptio...
How do I implement a callback in PHP?
... "callable" interchangeably, however, "callback" traditionally refers to a string or array value that acts like a function pointer, referencing a function or class method for future invocation. This has allowed some elements of functional programming since PHP 4. The flavors are:
$cb1 = 'someGlobal...
Create a new object from type parameter in generic class
...ve arguments, you can use.
export class Foo2 {
constructor(public arg1: string, public arg2: number) {
}
bar() {
console.log(this.arg1);
console.log(this.arg2);
}
}
getInstance(Foo, "Hello World", 2).bar();
...
Test parameterization in xUnit.net similar to NUnit
...oon", true)]
[InlineData("hello world", "hi", false)]
public void Contains(string input, string sub, bool expected)
{
var actual = input.Contains(sub);
Assert.Equal(expected, actual);
}
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Sort an Array by keys based on another Array?
...
It works nicely if you have string keys but not for the numerical one. PHP Docs: "If the input arrays have the same string keys, then the later value for that key will overwrite the previous one. If, however, the arrays contain numeric keys, the later v...
EF LINQ include multiple and nested entities
...t it to include data from other tables.
The Include syntax can also be in string. Like this:
db.Courses
.Include("Module.Chapter")
.Include("Lab")
.Single(x => x.Id == id);
But the samples in LinqPad explains this better.
...
Add floating point value to android resources/values
...s for:
Type = resource type (referenced with R.XXXXX.name):
color
dimen
string
style
etc...
To fetch resource from code, you should use this snippet:
TypedValue outValue = new TypedValue();
getResources().getValue(R.dimen.text_line_spacing, outValue, true);
float value = outValue.getFloat(); ...
Insert a line at specific line number with sed or awk
...
I think Nevin just needs to escape the quotes in his string with backslashes
– Chris Koknat
Sep 10 '15 at 23:49
...
Java exception not caught?
...ava 7 example: http://ideone.com/0YdeZo
From Javadoc's example:
static String readFirstLineFromFileWithFinallyBlock(String path)
throws IOException {
BufferedReader br = new BufferedReader(new FileReader(path));
try {
return br...