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问题 I'm working on a Liferay 6 project, and part of the project is to create a new layout template to be used for the entire site as the default. Liferay's own wiki is very sparse on documentation about layout templates, and I haven't had better luck with Google searches or even here on SO. I did find one article ( Liferay - Layout for each pages ) that sort of answers the question, but it seems like it might be overkill. In that question, the goal was to change the template based on the page, so

问题 Why is the default display style for image inline instead of inline-block? Is there any difference between inline and inline-block for img elements, from what I can see it behaves exactly in the same way. 回答1: The default browser stylesheets were initially created using CSS1 for HTML3.2, so inline-block was not available or necessary. There's no difference between them for image elements. References CSS 1 Specification HTML 3.2 Specification 回答2: IMG is an Inline & Replaced element. A

问题 I was trying to learn how to use the "new" C11 Generic expressions but I ran into a wall. Consider the following code: #include <stdlib.h> #include <stdio.h> #define test(X, Y, c) \ _Generic((X), \ double: _Generic((Y), \ double * : test_double, \ default: test_double \ ), \ int: _Generic((Y), \ int * : test_int, \ default: test_int \ ) \ ) (X, Y, c) int test_double(double a, double *b, int c); int test_int(int a, int *b, int c); int test_double(double a, double *b, int c) { return 1; } int

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 8 months ago . I am quite a highly OCD and lazy person and currently, I noticed that everyday late at night when I’m doing some work, I leave my Google Chrome split to the right of the screen and some document on the left side. When I open the browser in the morning, I have to manually resize the window length and width. I am

问题 I have a binded TextBlock , XAML: <TextBlock Text="{Binding MyText}"/> I know the FallbackValue can be used if the Binding isn't available, but this happens at run time ? Is there any way to show a default value at design time ? It would make things easier if I could see a value when designing my windows instead of an empty TextBlock . Thanks 回答1: If you would prefer a less verbose version of Ian Bamforth's answer, you can just do <TextBlock Text="{Binding MyText, FallbackValue=None}"/> 回答2:

问题 I have a binded TextBlock , XAML: <TextBlock Text="{Binding MyText}"/> I know the FallbackValue can be used if the Binding isn't available, but this happens at run time ? Is there any way to show a default value at design time ? It would make things easier if I could see a value when designing my windows instead of an empty TextBlock . Thanks 回答1: If you would prefer a less verbose version of Ian Bamforth's answer, you can just do <TextBlock Text="{Binding MyText, FallbackValue=None}"/> 回答2:

问题 I am new to python and decorators and am stumped in writing a decorator which reports not only passed args and kwargs but ALSO the unchanged default kwargs. This is what I have so far. def document_call(fn): def wrapper(*args, **kwargs): print 'function %s called with positional args %s and keyword args %s' % (fn.__name__, args, kwargs) return fn(*args, **kwargs) return wrapper @document_call def square(n, trial=True, output=False): # kwargs are a bit of nonsense to test function if not

问题 If I have something like: object value = null; Foo foo = new Foo(); PropertyInfo property = Foo.GetProperties().Single(p => p.Name == "IntProperty"); property.SetValue(foo, value, null); Then foo.IntProperty gets set to 0 , even though value = null . It appears it's doing something like IntProperty = default(typeof(int)) . I would like to throw an InvalidCastException if IntProperty is not a "nullable" type ( Nullable<> or reference). I'm using Reflection, so I don't know the type ahead of

问题 I would change default sms app on Android 4.4.2 I use this code: Intent sendIntent = new Intent(Telephony.Sms.Intents.ACTION_CHANGE_DEFAULT); sendIntent.putExtra(Telephony.Sms.Intents.EXTRA_PACKAGE_NAME, context.getPackageName()); startActivity(sendIntent); How can i solve this? And how can i ask to change default sms app with my app? My Receiver: <receiver android:name="receiver.SMSHandlerReceiver" android:permission="android.permission.BROADCAST_SMS" > <intent-filter> <action android:name=

问题 I have a stored procedure as follows. CREATE OR REPLACE PROCEDURE TEST( X IN VARCHAR2 DEFAULT 'P', Y IN NUMBER DEFAULT 1) AS BEGIN DBMS_OUTPUT.PUT_LINE('X'|| X||'--'||'Y'||Y); END; When I execute the above procedure EXEC TEST(NULL,NULL); It will print X--Y . The input parameters are not defaulting to the specified values in the procedure signature when input parameters are null . What is the use of default values then? What if we pass a null value as input and we want to replace a null value