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How to make Entity Framework Data Context Readonly
...
public class MyReadOnlyContext : DbContext
{
// Use ReadOnlyConnectionString from App/Web.config
public MyContext()
: base("Name=ReadOnlyConnectionString")
{
}
// Don't expose Add(), Remove(), etc.
public DbQuery<Customer> Customers
{
get
{...
How to sort a dataFrame in python pandas by two or more columns?
...orts with numeric values, while pd.DataFrame.sort_values works with either string or numeric values. Using np.lexsort with strings will give: TypeError: bad operand type for unary -: 'str'.
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Android - custom UI with custom attributes
...rence (to another resource), color, boolean, dimension, float, integer and string. They are pretty self-explanatory
2. Use the attributes in your layout
That works the same way you did above, with one exception. Your custom attribute needs it's own XML namespace.
<com.example.yourpackage.MyCus...
Where is the syntax for TypeScript comments documented?
...e foo function
* @param bar This is the bar parameter
* @returns returns a string version of bar
*/
function foo(bar: number): string {
return bar.toString()
}
This will cause editors like VS Code to display it as the following:
...
return query based on date
....3 using Node v0.12.7 and v4.4.4 and used:
{ $gte: new Date(dateVar).toISOString() }
I'm passing in an ISODate (e.g. 2016-04-22T00:00:00Z) and this works for a .find() query with or without the toISOString function. But when using in an .aggregate() $match query it doesn't like the toISOString fu...
In Vim, is there a way to paste text in the search line?
...
The 0 register contains the last-yanked string.
– Evgeni Sergeev
Nov 19 '17 at 8:49
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Proper use of 'yield return'
...{
yield return new Trip
{
Id = i.ToString(),
Driver = new Driver { Id = i.ToString() }
};
}
}
Then iterate through each trip:
static void Main(string[] args)
{
foreach (var trip in CreatePossibleTrips(...
How to completely remove a dialog on close
..., in my example, I went with the extremely simple option of just dumping a string withing the dialog div: $('#myDialog').html("Ooops."); You could modify this to change the content of any sub-controls in the dialog div as well.
– Fiona - myaccessible.website
Ma...
Make a link in the Android browser start up my app?
...tivity
android:name="com.example.MianActivityName"
android:label="@string/title_activity_launcher">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filt...
Why doesn't the example compile, aka how does (co-, contra-, and in-) variance work?
...w Integer[1];
arr[0] = "Hello, there!";
We just assigned a value of type String to an array of type Integer[]. For reasons which should be obvious, this is bad news. Java's type system actually allows this at compile time. The JVM will "helpfully" throw an ArrayStoreException at runtime. Scala...