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DbEntityValidationException - How can I easily tell what caused the error?
...more details. The validation errors are: The field PhoneNumber
must be a string 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
{
...
Convert string to variable name in JavaScript
...
Javascript has an eval() function for such occasions:
function (varString) {
var myVar = eval(varString);
// .....
}
Edit: Sorry, I think I skimmed the question too quickly. This will only get you the variable, to set it you need
function SetTo5(varString) {
var newValue = 5;
eva...
Convert date to another timezone in JavaScript
...
var aestTime = new Date().toLocaleString("en-US", {timeZone: "Australia/Brisbane"});
console.log('AEST time: '+ (new Date(aestTime)).toISOString())
var asiaTime = new Date().toLocaleString("en-US", {timeZone: "Asia/Shanghai"});
console.log('Asia time: '+...
binning data in python with scipy/numpy
...
The Scipy (>=0.11) function scipy.stats.binned_statistic specifically addresses the above question.
For the same example as in the previous answers, the Scipy solution would be
import numpy as np
from scipy.stats import binned_statistic
data = np.random.rand(100)
bin_means = binned_stat...
How do I access my SSH public key?
...
cat ~/.ssh/id_rsa.pub or cat ~/.ssh/id_dsa.pub
You can list all the public keys you have by doing:
$ ls ~/.ssh/*.pub
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How to modify Github pull request？
...you need more commits
You push c11,c21,c31 to b
The pull request now shows all 6 six commits
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C# getting its own class name
... class called MyProgram , is there a way of retrieving " MyProgram " as a string?
9 Answers
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What happens if you call erase() on a map element while iterating from begin to end?
...ng erase. At this point it is too late and is already invalidated.
map<string, SerialdMsg::SerialFunction_t>::iterator pm_it = port_map.begin();
while(pm_it != port_map.end())
{
if (pm_it->second == delete_this_id)
{
port_map.erase(pm_it++); // Use iterator.
...
How to copy data to clipboard in C#
How can I copy a string (e.g "hello") to the System Clipboard in C#, so next time I press CTRL+V I'll get "hello"?
5 Answ...
Pros and cons of AppSettings vs applicationSettings (.NET app.config / Web.config)
...hat you wanted to configure there really is a number - someone could put a string into that setting..... you just access it as ConfigurationManager["(key)"] and then it's up to you to know what you're dealing with.
Also, over time, the <appSettings> can get rather convoluted and messy, if lo...