大约有 46,000 项符合查询结果(耗时:0.0573秒) [XML]
Solving “The ObjectContext instance has been disposed and can no longer be used for operations that
...oading. E.g. if you have this entity:
public class MemberLoan
{
public string LoandProviderCode { get; set; }
public virtual Membership Membership { get; set; }
}
Entity Framework will return proxy inherited from this entity and provide DbContext instance to this proxy in order to allow laz...
Count the items from a IEnumerable without iterating?
...
Just adding extra some info:
The Count() extension doesn't always iterate. Consider Linq to Sql, where the count goes to the database, but instead of bringing back all the rows, it issues the Sql Count() command and returns that result ...
How to convert Linux cron jobs to “the Amazon way”?
...ntab. There is a case study at the end that helped me understand what that extra complexity buys you. I would suggest watching the case study and considering your requirements for scalability and fault tolerance to decide whether you should migrate from your existing crontab solution.
...
405 method not allowed Web API
...b.Mvc; // Wrong namespace for HttpGet attribute !!!!!!!!!
[HttpGet]
public string Blah()
{
return "blah";
}
SHOULD BE
using System.Web.Http; // Correct namespace for HttpGet attribute !!!!!!!!!
[HttpGet]
public string Blah()
{
return "blah";
}
...
jQuery UI DatePicker - Change Date Format
...
The getDate method of datepicker returns a date type, not a string.
You need to format the returned value to a string using your date format.
Use datepicker's formatDate function:
var dateTypeVar = $('#datepicker').datepicker('getDate');
$.datepicker.formatDate('dd-mm-yy', dateTypeV...
How to count total lines changed by a specific author in a Git repository?
...y long-liner! This spot of awk swabbed everyone's deck (accurate, fast, no extra weird output). Not surprising, considering this is the sort of thing awk was designed for... Too bad you were so late to the party.
– zxq9
Oct 15 '12 at 18:41
...
In PHP, what is a closure and why does it use the “use” identifier?
...
ohhhhhhhh, so the Uses is used to pass in extra variables, I thought it was some funny assignment. Thanks!
– SeanDowney
Jul 1 '09 at 20:31
41
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Errors: “INSERT EXEC statement cannot be nested.” and “Cannot use the ROLLBACK statement within an I
... SQL Server without some giant convoluted created function or executed sql string call, both of which are terrible solutions:
create a temp table
openrowset your stored procedure data into it
EXAMPLE:
INSERT INTO #YOUR_TEMP_TABLE
SELECT * FROM OPENROWSET ('SQLOLEDB','Server=(local);TRUSTED_CONN...
Installing Python 3 on RHEL
...
There is no extra cost. RH Software Collections are part of all RHEL developer subscriptions and most RHEL subscriptions. No-cost RHEL development subscriptions can be obtained from developers.redhat.com/download. These are real RHEL su...
Bubble Sort Homework
...each turn. The heaviest is already placed last. The swapped variable is an extra check so we can mark that the list is now sorted and avoid continuing with unnecessary calculations.
def bubble(badList):
length = len(badList)
for i in range(0,length):
swapped = False
for elem...
