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Rails: How can I set default values in ActiveRecord?
...n which you find the model. If you just want to initialize some numbers to 0 then this is not what you want.
Defining defaults in your migration also works part of the time... As has already been mentioned this will not work when you just call Model.new.
Overriding initialize can work, but don't for...
How to use the IEqualityComparer
...f the function causes a big delay from the function without distinct, from 0.6 sec to 3.2 sec!
6 Answers
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Panel.Dock Fill ignoring other Panel.Dock setting
...
10 Answers
10
Active
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Change the selected value of a drop-down list with jQuery
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1019
jQuery's documentation states:
[jQuery.val] checks, or selects, all the radio buttons, che...
Format of the initialization string does not conform to specification starting at index 0
...ist of commonly used ones.
Commonly used Connection Strings:
SQL Server 2012
Standard Security
Server=myServerAddress;Database=myDataBase;User Id=myUsername;Password=myPassword;
Trusted Connection
Server=myServerAddress;Database=myDataBase;Trusted_Connection=True;
Connection to a SQL Server...
How to compare objects by multiple fields
... |
edited Sep 24 '18 at 20:27
community wiki
2...
C++及Windows异常处理(try，catch; __try,__finally, __except) - C/C++ - ...
... __try, __except)一道笔试题引起的探究题目：
int* p = 0x00000000; // pointer to NULL
puts( "hello ");
__try{
puts( "in try ");
__try{
puts( "in try ");
*p = 13; // causes an access vi...
How to pass a function as a parameter in Java? [duplicate]
...ing
}
then call it, perhaps using an anonymous inner class:
dansMethod(100, new Callable<Integer>() {
public Integer call() {
return methodToPass();
}
});
Keep in mind this is not a 'trick'. It's just java's basic conceptual equivalent to function pointers.
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ffmpeg - Converting MOV files to MP4 [closed]
...as mentioned in the comments, which re-encodes with best quaility (-qscale 0):
ffmpeg -i input.mov -q:v 0 output.mp4
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ATL COM开发入门（二）（ActiveX/COM组件回调JS） - C/C++ - 清泛网 - 专注C/C++及内核技术
...handle to main window
ID_TIMER, // 定时器标识
1000, // 1 秒间隔
(TIMERPROC)TimerProc); // 回调函数
return S_OK;
}
TimerProc回调函数：
IDispatch* gIDispatch = NULL;
#define ID_TIMER 1
VOID CALLBACK TimerProc(
HWND hwnd, ...