大约有 13,909 项符合查询结果（耗时：0.0294秒） [XML]
Random string generation with upper case letters and digits
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Socket File “/var/pgsql_socket/.s.PGSQL.5432” Missing In Mountain Lion (OS X Server)
...just upgraded my MacMini Server from Lion Server to Mountain Lion using OS X Server. I am having the same problem with PostgreSQL that I did last year when I first installed Lion Server.
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Delete a single record from Entity Framework?
...t's not necessary to query the object first, you can attach it to the context by its id.
Like this:
var employer = new Employ { Id = 1 };
ctx.Employ.Attach(employer);
ctx.Employ.Remove(employer);
ctx.SaveChanges();
Alternatively, you can set the attached entry's state to deleted :
var employer =...
Run function from the command line
... functions, and only call one depending on my need
– xappppp
Apr 15 '18 at 4:16
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For some reason...
In OS X Lion, LANG is not set to UTF-8, how to fix it?
I try to setup postgress in OS X Lion, and find that is not correctly setup the LOCALE environment var.
5 Answers
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Problems with lib-icu dependency when installing Symfony 2.3.x via Composer
I've had no problems installing Symfony 2.2.x using Composer, I've always just copied the stable version at http://symfony.com/download .
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The object cannot be deleted because it was not found in the ObjectStateManager
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It means that entity is not attached (it was not loaded by the same context instance). Try this:
protected MyEntities sqlEntities;
public virtual void Delete(TEntity entity)
{
sqlEntities.Attach(entity);
sqlEntities.DeleteObject(entity);
sqlEntities.SaveChanges();
}
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Intelligent way of removing items from a List while enumerating in C#
... best solution is usually to use the RemoveAll() method:
myList.RemoveAll(x => x.SomeProp == "SomeValue");
Or, if you need certain elements removed:
MyListType[] elems = new[] { elem1, elem2 };
myList.RemoveAll(x => elems.Contains(x));
This assume that your loop is solely intended for re...
Detect iPad users using jQuery?
...ions, so to not use the navigator user agent?
– albanx
Jan 21 '11 at 20:21
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One typo (should be ...
Append a NumPy array to a NumPy array
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Hi when i run this i get this np.concatenate((a,b),axis=1) Output: array([1, 2, 3, 2, 3, 4]) But what I looking for is numpy 2d array??
– frazman
Mar 19 '12 at 18:05
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