大约有 44,949 项符合查询结果（耗时：0.0569秒） [XML]
How many threads is too many?
I am writing a server, and I send each action of into a separate thread when the request is received. I do this because almost every request makes a database query. I am using a threadpool library to cut down on construction/destruction of threads.
...
How to print out all the elements of a List in Java?
I am trying to print out all the elements of a List , however it is printing the pointer of the Object rather than the value.
...
Handling an empty UITableView. Print a friendly message
I have a UITableView that in some cases it is legal to be empty. So instead of showing the
background image of the app, I would prefer to print a friendly message in the screen, such as:
...
How to perform Single click checkbox selection in WPF DataGrid?
I have a DataGrid with first column as text column and second column as CheckBox column. What I want is, if I click the check box. It should get checked.
But, it takes two click to get selected, for first click the cell is getting selected, for the second clicks the check box is getting checked. ...
Received an invalid column length from the bcp client for colid 6
...database.
Verify the data in excel. Also verify the data in the excel for its format to be in compliance with the database table schema.
To avoid this, try exceeding the data-length of the string datatype in the database table.
Hope this helps.
...
Get Folder Size from Windows Command Line
Is it possible in Windows to get a folder's size from the command line without using any 3rd party tool?
17 Answers
...
How to pass in password to pg_dump?
... to back up my database every night before something catastrophic happens. It looks like this command should meet my needs:
...
bool operator ++ and --
Today while writing some Visual C++ code I have come across something which has surprised me. It seems C++ supports ++ (increment) for bool, but not -- (decrement). It this just a random decision, or there is some reason behind this?
...
UICollectionView's cellForItemAtIndexPath is not being called
Only my second time using UICollectionView's and perhaps I have bitten off more than I can chew but nevertheless:
31 Answer...
Split array into chunks
... beginning, middle, or end of an array for whatever purposes you require, without changing the original array.
var i,j,temparray,chunk = 10;
for (i=0,j=array.length; i<j; i+=chunk) {
temparray = array.slice(i,i+chunk);
// do whatever
}
...