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LINQ to SQL: Multiple joins ON multiple Columns. Is this possible?
... from child in context.Childs
where child.Parent.col2 == 4
select new
{
childCol1 = child.col1,
parentCol1 = child.Parent.col1,
};
will generate the query
SELECT [t0].[col1] AS [childCol1], [t1].[col1] AS [parentCol1]
FROM [dbo].[Child] AS [...
Detecting which UIButton was pressed in a UITableView
...onTapped:) forControlEvents:UIControlEventTouchUpInside];
Then in touch handler touch coordinate retrieved and index path is calculated from that coordinate:
- (void)checkButtonTapped:(id)sender
{
CGPoint buttonPosition = [sender convertPoint:CGPointZero toView:self.tableView];
NSIndexPa...
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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pip install mysql-python fails with EnvironmentError: mysql_config not found
...3.17-0/mysql/bin If you're using this commercial MAMP stack, on the other hand, uninstall it and get the bitnami one because it is shit and doesn't include the mysql headers.
– Timmmm
Oct 8 '12 at 11:20
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What does ^M character mean in Vim?
I keep getting ^M character in my vimrc and it breaks my configuration.
15 Answers
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What does “error: option --single-version-externally-managed not recognized” indicate?
...not recognized when pip install ing varions packages (including PyObjC and astropy ). I've never seen this error before, but it's now also showing up on travis-ci builds for which nothing has changed.
...
multiple prints on the same line in Python
...
This doesn't work if you have both prints and a time consuming action in between (all in the same function / indentation level). Before the action starts, there is no output at all and after it is finished the output appears as whole
– Paddre
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How can i query for null values in entity framework?
...try in table
where entry.something.Equals(value)
select entry;
Workaround for Linq-to-Entities (ouch!):
var result = from entry in table
where (value == null ? entry.something == null : entry.something == value)
select entry;
This is a nasty b...
Tree view of a directory/folder in Windows? [closed]
...all descending files & folders.
In File Explorer under Windows 8.1:
Select folder
Press Shift, right-click mouse, and select "Open command window here"
Type tree /f > tree.txt and press Enter
Use MS Word to open "tree.txt"
The dialog box "File Conversion - tree.txt" will open
For "Text enc...
Random record in ActiveRecord
...he first, all after are still sorted by id). If you need multiple randomly selected records you must use this approach multiple times or use the random order method provided by your database, i.e. Thing.order("RANDOM()").limit(100) for 100 randomly selected entries. (Be aware that it's RANDOM() in P...