大约有 40,000 项符合查询结果（耗时：0.0561秒） [XML]
A generic list of anonymous class
... okay cool, now we need an example of replacing the new {} lines with a select statement. var list = sourceList.Select( o => new { o.ModelId, ...
Regex match everything after question mark?
... for something like this? Topics: code, programming, design So I want to select the colon and look behind as far as the cpaital T of topics and fowards to the end on the line? (in this case end of the line is "design".
– Mark
Dec 11 '10 at 21:36
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Android Studio - How to Change Android SDK Path
...ject Structure into Project Structure
Left -> SDK Location
SDK location select Android SDK location (old version use Press +, add another sdk)
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How do I view the SQL generated by the Entity Framework?
...e query = from x in appEntities
where x.id == 32
select x;
var sql = ((System.Data.Objects.ObjectQuery)query).ToTraceString();
or in EF6:
var sql = ((System.Data.Entity.Core.Objects.ObjectQuery)query)
.ToTraceString();
That will give you the SQL that was g...
Uniq by object attribute in Ruby
What's the most elegant way to select out objects in an array that are unique with respect to one or more attributes?
14 An...
Which machine learning classifier to choose, in general? [closed]
...
Model selection using cross validation may be what you need.
Cross validation
What you do is simply to split your dataset into k non-overlapping subsets (folds), train a model using k-1 folds and predict its performance using the...
MySQL Insert into multiple tables? (Database normalization?)
... 2 and 3:
Will stock the LAST_INSERT_ID() in
a MySQL variable:
INSERT ...
SELECT LAST_INSERT_ID() INTO @mysql_variable_here;
INSERT INTO table2 (@mysql_variable_here, ...);
INSERT INTO table3 (@mysql_variable_here, ...);
Will stock the LAST_INSERT_ID() in a
php variable (or any language that
can c...
Focus Next Element In Tab Index
...st of all, on your tab-able elements, add class="tabable" this will let us select them later.
(Do not forget the "." class selector prefix in the code below)
var lastTabIndex = 10;
function OnFocusOut()
{
var currentElement = $get(currentElementId); // ID set by OnFOcusIn
var curIndex = cur...
Copying text with color from Notepad++
...
In NPP v6.7.7 you can do this by selecting your text, right clicking on it, select "Plugin commands" and then "Copy text with syntax highlighting".
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Random record from MongoDB
...llection.
db.mycoll.aggregate([{ $sample: { size: 1 } }])
If you want to select the random document(s) from a filtered subset of the collection, prepend a $match stage to the pipeline:
// Get one random document matching {a: 10} from the mycoll collection.
db.mycoll.aggregate([
{ $match: { a:...