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DbEntityValidationException - How can I easily tell what caused the error?
...ing or array type with a maximum length of '12'; The
LastName field is required.
You can drop the overridden SaveChanges in any class that inherits from DbContext:
public partial class SomethingSomethingEntities
{
public override int SaveChanges()
{
try
{
ret...
Selectors in Objective-C?
...ns the value to a SEL.
Other have already covered the second part of your q, the ':' at the end matches a different signature than what you're looking for (in this case that signature doesn't exist).
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What's the difference between “Request Payload” vs “Form Data” as seen in Chrome dev tools Network t
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PHP is evil of course. The popularity of application/x-www-form-urlencoded is defined by the popularity of PHP.
– Brian Cannard
Apr 28 '16 at 10:17
...
Android get free size of internal/external memory
...lable() {
return android.os.Environment.getExternalStorageState().equals(
android.os.Environment.MEDIA_MOUNTED);
}
public static String getAvailableInternalMemorySize() {
File path = Environment.getDataDirectory();
StatFs stat = new StatFs(path.getPat...
How to urlencode a querystring in Python?
...o pass your parameters into urlencode() as either a mapping (dict), or a sequence of 2-tuples, like:
>>> import urllib
>>> f = { 'eventName' : 'myEvent', 'eventDescription' : 'cool event'}
>>> urllib.urlencode(f)
'eventName=myEvent&eventDescription=cool+event'
Pytho...
How to store date/time and timestamps in UTC time zone with JPA and Hibernate
...
@Override
public void set(PreparedStatement st, Object value, int index) throws SQLException {
Timestamp ts;
if(value instanceof Timestamp) {
ts = (Timestamp) value;
} else {
ts = new Timestamp(((java.util.Date) value).getTime());
}
...
How can I shuffle an array? [duplicate]
...lements in the array
while (counter > 0) {
// Pick a random index
let index = Math.floor(Math.random() * counter);
// Decrease counter by 1
counter--;
// And swap the last element with it
let temp = array[counter];
array[counter] = arr...
Reading/parsing Excel (xls) files with Python
...e
worksheet = workbook.sheet_by_name('Name of the Sheet')
open sheet by index
worksheet = workbook.sheet_by_index(0)
read cell value
worksheet.cell(0, 0).value
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Why is quicksort better than mergesort?
...eks to disk. For instance this is why it is standard advice that you drop indexes before doing large data loads in databases, and then rebuild the index later. Maintaining the index during the load means constantly seeking to disk. By contrast if you drop the indexes, then the database can rebuil...
Sorted collection in Java
... search and move).
However, unlike a List, PriorityQueue does not support indexed access (get(5)), the only way to access items in a heap is to take them out, one at a time (thus the name PriorityQueue).
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