大约有 19,000 项符合查询结果（耗时：0.0296秒） [XML]
Create a dictionary on a list with grouping
...:
Dim qry = (From acs In ActualSales _
Group By acs.ProductID Into Group _
Select ProductID, Months = Group.ToDictionary(Function(c) c.Period) _
).ToDictionary(Function(c) c.ProductID)
The resulting query can be used as follows:
If qry.ContainsKey(_Produc...
class name and method name dropdown list is missing (visual studio setting)
...answered Sep 17 '09 at 20:42
DavidDavid
67.1k1515 gold badges124124 silver badges164164 bronze badges
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How can I remove a key and its value from an associative array?
...re, but it's worth noting that if you are trying to perform these edits inside of a foreach loop, then you need to prepend an ampersand to your enumeration variable to allow write access.
– FreeAsInBeer
Jul 30 '12 at 21:20
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Git push to wrong branch
...switch to that branch, check the git log and git revert those commits individually. Once you have done that, switch back to the desired branch and there you can then use git cherry-pick to pick specific commits from the git refs and merge it into the right branch.
git checkout wrong_branch
git reve...
MongoDB: update every document on one field
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psh it's that empty {} that did it for me, thanks Phil
– Jona
Apr 13 '16 at 13:10
1
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How do I get the MAX row with a GROUP BY in LINQ query?
... SerialNumber = g.Key,
uid = (from t2 in g select t2.uid).Max()
};
}
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Inno Setup for Windows service?
...tem.Reflection;
using System.ServiceProcess;
using System.Text;
static void Main(string[] args)
{
if (System.Environment.UserInteractive)
{
string parameter = string.Concat(args);
switch (parameter)
{
case "--install":
ManagedInstallerCla...
How to get the original value of an attribute in Rails
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the documentation can be found at apidock.com/rails/ActiveModel/Dirty/attribute_was
– hexinpeter
Jan 21 '16 at 6:07
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Warning the user/local/mysql/data directory is not owned by the mysql user
...on macOS Mojave and no joy. I get ERROR! The server quit without updating PID file when trying mysql.server start
– Joshua Pinter
Nov 14 '18 at 16:25
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How I can delete in VIM all text from current line to end of file?
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d Ctrl+End did not work for me. d Shift+End did though to delete from the cursor to the end of the line.
– lightwing
May 4 '18 at 16:30
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