大约有 30,000 项符合查询结果（耗时：0.0328秒） [XML]
What is the “N+1 selects problem” in ORM (Object-Relational Mapping)?
...y objects returned.
Consider:
class House
{
int Id { get; set; }
string Address { get; set; }
Person[] Inhabitants { get; set; }
}
class Person
{
string Name { get; set; }
int HouseId { get; set; }
}
and tables with a similar structure. A single query for the address "22 Va...
What does [object Object] mean?
...
The default conversion from an object to string is "[object Object]".
As you are dealing with jQuery objects, you might want to do
alert(whichIsVisible()[0].id);
to print the element's ID.
As mentioned in the comments, you should use the tools included in brows...
WPF chart controls [closed]
...rts lots of 2D charts and zooming without animation, might need to do some extra work for smoother zooming.(This service is no longer available)
DevExpress ChartControl. Supports most common 2D Series types, zooming and panning (scrolling) operations can be performed using the mouse, keyboard, and t...
Get img thumbnails from Vimeo?
...P.NET using C#. Feel free to use a different error catch image :)
public string GetVimeoPreviewImage(string vimeoURL)
{
try
{
string vimeoUrl = System.Web.HttpContext.Current.Server.HtmlEncode(vimeoURL);
int pos = vimeoUrl.LastIndexOf(".com");
string videoID = vimeo...
Pandas percentage of total with groupby
... doesn't intuitively make sense (especially when some of the cells contain strings like AZ, ...).
– dhardy
Feb 6 '15 at 9:42
6
...
What happens to a github student account's repositories at the end of 2 years?
...d, as no other service does this. How will it be if you stopped paying for extra storage on Google Drive, and the next day you find that half your files were hidden until you pay up.
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improv...
Android List View Drag and Drop sort
...Adapter
public class ItemAdapter extends DragItemAdapter<Pair<Long, String>, ItemAdapter.ViewHolder>
public ItemAdapter(ArrayList<Pair<Long, String>> list, int layoutId, int grabHandleId, boolean dragOnLongPress) {
super(dragOnLongPress);
mLayoutId = layo...
How to get IntPtr from byte[] in C#
...
I like this answer because it doesn't involve allocating extra memory just to access the data
– Xcalibur
Apr 7 '11 at 4:02
...
How do I install jmeter on a Mac?
...s.
OUTDATED:
If you want to include the plugins (JMeterPlugins Standard, Extras, ExtrasLibs, WebDriver and Hadoop) use:
brew install jmeter --with-plugins
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improve this answer
...
RedirectToAction with parameter
... the URL "/100", while new {groupId = 100} might be interpreted as a query string (as was mentioned above), resulting in the URL "?groupId=100".
– jakobinn
Jan 27 '19 at 12:57
...