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Using Transactions or SaveChanges(false) and AcceptAllChanges()?
...tionScope scope = new TransactionScope())
{
//Do something with context1
//Do something with context2
//Save and discard changes
context1.SaveChanges();
//Save and discard changes
context2.SaveChanges();
//if we get here things are looking good.
scope.Complete();
}...
How do I use shell variables in an awk script?
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519
Getting shell variables into awk
may be done in several ways. Some are better than othe...
CSS 100% height with padding/margin
...HTML/CSS, how can I make an element that has a width and/or height that is 100% of it's parent element and still has proper padding or margins?
...
How to use phpexcel to read data and insert into database?
...y
include 'PHPExcel/IOFactory.php';
$inputFileName = './sampleData/example1.xls';
// Read your Excel workbook
try {
$inputFileType = PHPExcel_IOFactory::identify($inputFileName);
$objReader = PHPExcel_IOFactory::createReader($inputFileType);
$objPHPExcel = $objReader->load($inputFi...
Insert/Update Many to Many Entity Framework . How do I do it?
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141
In terms of entities (or objects) you have a Class object which has a collection of Students a...
Bash function to find newest file matching pattern
...ameter -t to sort by time. You can then grab the first (newest) with head -1.
ls -t b2* | head -1
But beware: Why you shouldn't parse the output of ls
My personal opinion: parsing ls is only dangerous when the filenames can contain funny characters like spaces or newlines. If you can guarantee t...
MySQL error code: 1175 during UPDATE in MySQL Workbench
I'm trying to update the column visited to give it the value 1. I use MySQL workbench, and I'm writing the statement in the SQL editor from inside the workbench. I'm writing the following command:
...
How to write a large buffer into a binary file in C++, fast?
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12 Answers
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How to wrap text around an image using HTML/CSS
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111
you have to float your image container as follows:
HTML
<div id="container">
<d...
MongoDB数据导出导入工具：mongoexport,mongoimport - 大数据 & AI - 清泛...
...d exit
-h [ --host ] arg mongo host to connect to ( <set name>/s1,s2 for sets)
--port arg server port. Can also use --host hostname:port
--ipv6 enable IPv6 support (disabled by default)
-u [ --username ] arg username
-p [ --password ] arg ...