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How to delete an object by id with entity framework
...Customer(int id)
{
using (var context = new Context())
{
const string query = "DELETE FROM [dbo].[Customers] WHERE [id]={0}";
var rows = context.Database.ExecuteSqlCommand(query,id);
// rows >= 1 - count of deleted rows,
// rows = 0 - nothing to delete.
}
}
...
Calling dynamic function with dynamic number of parameters [duplicate]
...ith arbitrary functions, pass the function itself instead of its name as a string:
function dispatch(fn, args) {
fn = (typeof fn == "function") ? fn : window[fn]; // Allow fn to be a function object or the name of a global function
return fn.apply(this, args || []); // args is optional, u...
How do I add a linker or compile flag in a CMake file?
...ILE_FLAGS)
if(TEMP STREQUAL "TEMP-NOTFOUND")
SET(TEMP "") # Set to empty string
else()
SET(TEMP "${TEMP} ") # A space to cleanly separate from existing content
endif()
# Append our values
SET(TEMP "${TEMP}${GCC_COVERAGE_COMPILE_FLAGS}" )
set_target_properties(${THE_TARGET} PROPERTIES COMPILE_FLA...
How to get all child inputs of a div element (jQuery)
...n Rails or Spring MVC you may need to use divs with square braces or other chars, that are not allowed you can use document.getElementById and this solution still works if you have multiple inputs with the same type.
var div = document.getElementById(divID);
$(div).find('input:text, input:password,...
Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...引号。单双引号的区别跟PHP类似。
单引号
str='this is a string'
单引号字符串的限制：
单引号里的任何字符都会原样输出，单引号字符串中的变量是无效的
单引号字串中不能出现单引号（对单引号使用转义符后也不行）
...
How can I wait for a thread to finish with .NET?
...from .NET 4 this sample can help you:
class Program
{
static void Main(string[] args)
{
Task task1 = Task.Factory.StartNew(() => doStuff());
Task task2 = Task.Factory.StartNew(() => doStuff());
Task task3 = Task.Factory.StartNew(() => doStuff());
Task...
bash assign default value
...riable without needing to reassign
# colons suppress attempting to run the string
unset EGGS
: ${EGGS=spam}
echo 1 $EGGS # 1 spam
unset EGGS
: ${EGGS:=spam}
echo 2 $EGGS # 2 spam
EGGS=
: ${EGGS=spam}
echo 3 $EGGS # 3 (set, but blank -> leaves alone)
EGGS=
: ${EGGS:=spam}
echo ...
How to enable/disable bluetooth programmatically in android
...
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (action.equals(BluetoothAdapter.ACTION_STATE_CHANGED)) {
final int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE,
...
node.js: read a text file into an array. (Each line an item in the array.)
...the final data into an array then wouldn't you also be able to fit it in a string and split it, as has been suggested?
In any case if you would like to process the file one line at a time you can also try something like this:
var fs = require('fs');
function readLines(input, func) {
var remainin...
Heap vs Binary Search Tree (BST)
...on. But if you want to do that, it is likely that you will want to keep an extra index up-to-date on heap operations How to implement O(logn) decrease-key operation for min-heap based Priority Queue? e.g. for Dijkstra. Possible at no extra time cost.
GCC C++ standard library insert benchmark on rea...