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Validation failed for one or more entities. See 'EntityValidationErrors' property for more details [
... shows me that it's an array with 8 objects, so 8 validation errors.
Actually you should see the errors if you drill into that array in Visual studio during debug. But you can also catch the exception and then write out the errors to some logging store or the console:
try
{
// Your code...
...
How to retrieve inserted id after inserting row in SQLite using Python?
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There is also the last_insert_rowid() SQL function, allowing you to insert the last row id as a foreign key in a next insert statement, entirely in SQL.
– Martijn Pieters♦
Feb 3 '14 at 12:36
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Should I use AppDomain.CurrentDomain.BaseDirectory or System.Environment.CurrentDirectory?
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I usually use something like:
string AppPath = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase);
AppPath = AppPath.Replace("file:\\", "");
...
How to prevent blank xmlns attributes in output from .NET's XmlDocument?
...:name-space-1.0"));
Console.WriteLine(xml.OuterXml);
Thanks everyone to all your answers which led me in the right direction!
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How to delete a localStorage item when the browser window/tab is closed?
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If it works, you can technically use it. But considering removeItem is provided as a member function, it seems logical to use it rather than running into potentially undefined behavior using a separate operator.
– kungphu
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Replace only text inside a div using jquery
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Really great answer!
– wcolbert
Oct 11 '13 at 21:43
7
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backbone.js - events, knowing what was clicked
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Normally on an event bind, you would just use $(this), but I'm fairly sure Backbone views are set up so that this always refer to the view, so try this:
perpage: function(ev) {
alert($(ev.target).text());
}
REALLY LATE EDIT...
What is the default value for enum variable?
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It is whatever member of the enumeration represents the value 0. Specifically, from the documentation:
The default value of an enum E is the value produced by the expression (E)0.
As an example, take the following enum:
enum E
{
Foo, Bar, Baz, Quux
}
Without overriding the default val...
Is That REST API Really RPC? Roy Fielding Seems to Think So
...s like Ionspec which have made these URIs as part of the response intentionally.
– Sean Pianka
Dec 30 '19 at 17:00
Yes...
Which version of Perl should I use on Windows? [closed]
...e repeatedly had with ActiveState is that my modules sometimes fail to install because I need an upgrade to a core module, but they won't allow that. Thus, everybody who doesn't use Windows can use my code, but they can't do that with ActiveState's Perl.
ActiveState also has a very dodgy build sys...
