大约有 46,000 项符合查询结果（耗时：0.0510秒） [XML]
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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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...
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...
warning: implicit declaration of function
...t;stdio.h>
#include <stdlib.h>
#include <xc.h>
#include <string.h>
#include <math.h>
#include <libpic30.h> // http://microchip.wikidot.com/faq:74
#include <stdint.h>
#include <stdbool.h>
#include "GenericTypeDefs.h" // This has the 'BYTE' type defi...
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(...
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:
...
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...
Difference between DirectCast() and CType() in VB.NET
...do things you just can't do with a simple (int)-style cast, like convert a string to an integer. It has as much power as calling Convert.To___() in C#, where the ___ is the target type of your cast.
This is desirable because it's very powerful. However, this power comes at the cost of performance; ...
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...