大约有 43,000 项符合查询结果（耗时：0.0356秒） [XML]
ModelState.IsValid == false, why?
...wrong:
(Often if the binder is trying to convert strings to complex types etc)
if (!ModelState.IsValid)
{
var errors = ModelState.SelectMany(x => x.Value.Errors.Select(z => z.Exception));
// Breakpoint, Log or examine the list with Exceptions.
}
...
How to Remove Array Element and Then Re-Index Array?
...r methods, but is there a reason this answer is so bad? Is it performance? etc? Same reason I am on SO, to learn as well as teach.
– frostymarvelous
Apr 23 '14 at 14:53
...
Why is good UI design so hard for some Developers? [closed]
... an overview and the first few chapters from the author's site.
Learn to sketch designs. Sketching is fast way to explore design options and find the right design, whereas usability testing is about getting the design right. Paper prototyping is fast, cheap, and effective during the early design sta...
Auto-indent in Notepad++
...d is awesome. The fact that it works in arbitrary formatting (XML, C/++/#, etc.) is great. Only problem with it is the "undo" stack. When used, if you wish to undo to a point before when you indented, you have to undo through every line re-indentation, as it doesn't get added to the stack as a singl...
How can I print variable and string on same line in Python?
...e other things as well, like padding, fill, alignment,width, set precision etc
>>> print "{:d} {:03d} {:>20f}".format(1,2,1.1)
1 002 1.100000
^^^
0's padded to 2
Demo:
>>> births = 4
>>> print "If there was a birth every 7 seconds, there would be: ",bir...
Add comma to numbers every three digits
... Just make sure the number you call it on is a number type (int, float, etc..) and not a string.
– el3ati2
Feb 28 at 22:37
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C++ cout hex values?
...tream>. But to use things like std::setprecision/std::setw/std::setfill/etc you have to include <iomanip>.
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Bash script prints “Command Not Found” on empty lines
.../bash
Try running:
dos2unix script.sh
That wil convert line endings, etc from Windows to unix format. i.e. it strips \r (CR) from line endings to change them from \r\n (CR+LF) to \n (LF).
More details about the dos2unix command (man page)
Another way to tell if your file is in dos/Win for...
Get current folder path
...
You should not use Directory.GetCurrentDirectory() in your case, as the current directory may differ from the execution folder, especially when you execute the program through a shortcut.
It's better to use Path.GetDirectoryName(Assembly.GetExecutingAsse...
Convert a list to a string in C#
...st). The first parameter is the delimiter. So you could also comma-delimit etc.
You might also want to look at using StringBuilder to do running concatenations, rather than forming a list.
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