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Validation failed for one or more entities while saving changes to SQL Server Database using Entity
...trings.
var errorMessages = ex.EntityValidationErrors
.SelectMany(x => x.ValidationErrors)
.Select(x => x.ErrorMessage);
// Join the list to a single string.
var fullErrorMessage = string.Join("; ", errorMessages);
// Combine the origin...
When should I use the assets as opposed to raw resources in Android?
I'm in the mid of my Android studies, and I just covered the Assets and Raw resources. I'm trying to understand the reason for using Raw resources vs. Assets.
...
How can I use getSystemService in a non-activity class (LocationManager)?
...ct of fyl in onCreate function like this:
package com.atClass.lmt;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
import android.location.Location;
public class lmt extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
...
Multiline string literal in C#
... in front of a string to form a verbatim string literal:
string query = @"SELECT foo, bar
FROM table
WHERE id = 42";
You also do not have to escape special characters when you use this method, except for double quotes as shown in Jon Skeet's answer.
...
How do I update my forked repo using SourceTree?
...
First, set up the parent repo:
Open your forked repo in SourceTree.
Select Repository ➫ Repository Settings… in the menu (or press ⇧⌘,).
In the Remotes pane, press Add.
Enter any name you like (often upstream or master) and the URL / path to the parent repo.
Press OK, then OK.
Now, ...
How to enable assembly bind failure logging (Fusion) in .NET
...system.)
Make sure that the right level of logging is on (I sometimes just select Log all binds to disk just to make sure things are working right)
Click OK
Set the log location option to Custom
Remember to turn of logging off once you're done!
(I just posted this on a similar question - I think...
Singleton pattern in nodejs - is it needed?
...
This has basically to do with nodejs caching. Plain and simple.
https://nodejs.org/api/modules.html#modules_caching
(v 6.3.1)
Caching
Modules are cached after the first time they are loaded. This means
(among other things) that every call to require('foo') will ge...
jQuery selectors on custom data attributes using HTML5
I would like to know what selectors are available for these data attributes that come with HTML5.
4 Answers
...
dealloc in Swift
...an-up
yourself. For example, if you create a custom class to open a file and
write some data to it, you might need to close the file before the
class instance is deallocated.
share
|
improve ...
How to see log files in MySQL?
...print the value of error log, run this command in the terminal:
mysql -e "SELECT @@GLOBAL.log_error"
To read content of the error log file in real time, run:
sudo tail -f $(mysql -Nse "SELECT @@GLOBAL.log_error")
Note: Hit Control-C when finish
When general log is enabled, try:
sudo tail -f ...