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ModelState.IsValid == false, why?
...
About "can it be that 0 errors and IsValid == false": here's MVC source code from https://github.com/Microsoft/referencesource/blob/master/System.Web/ModelBinding/ModelStateDictionary.cs#L37-L41
public bool IsValid {
get {
return Values.All(mo...
Command not found error in Bash variable assignment
...d your '=' sign.
When you write:
STR = "foo"
bash tries to run a command named STR with 2 arguments (the strings '=' and 'foo')
When you write:
STR =foo
bash tries to run a command named STR with 1 argument (the string '=foo')
When you write:
STR= foo
bash tries to run the command foo ...
sizeof single struct member in C
... this:
#define member_size(type, member) sizeof(((type *)0)->member)
and use it like this:
typedef struct
{
float calc;
char text[255];
int used;
} Parent;
typedef struct
{
char flag;
char text[member_size(Parent, text)];
int used;
} Child;
I'm actually a bit surpri...
Package doesn't exist error in intelliJ
...elliJ through project structure add library. Then I imported the packages and wrote the methods, which gave me no error. The packages were available in the class.
...
How to make inline functions in C#
...ored
{
Console.WriteLine("Hello world!");
}
Lambdas are new in C# 3.0 and come in two flavours.
Expression lambdas:
Func<int, int, int> add = (int x, int y) => x + y; // or...
Func<int, int, int> add = (x, y) => x + y; // types are inferred by the compiler
Statement lambda...
android View not attached to window manager
...ompleted. I seemed to resolve this by setting the dialog to null onPause() and then checking this in the AsyncTask before dismissing.
@Override
public void onPause() {
super.onPause();
if ((mDialog != null) && mDialog.isShowing())
mDialog.dismiss();
mDialog = null;
}
...
How to show “Done” button on iPhone number pad
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@BenPotter You would set the barTint for the bar color and tint color for the text. You could also create the UIBarButton items out side of the intializer and set the color for them explicitly there.
– ocross
May 6 '14 at 23:55
...
What is a memory fence?
...are concept. In higher level languages we are used to dealing with mutexes and semaphores - these may well be implemented using memory fences at the low level and explicit use of memory barriers are not necessary. Use of memory barriers requires a careful study of the hardware architecture and more ...
How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
...ll TTY devices but you might want to exclude those pesky virtual terminals and pseudo terminals. I suggest you examine only those which have a device/driver entry:
# ll /sys/class/tty/*/device/driver
lrwxrwxrwx 1 root root 0 2012-03-28 19:07 /sys/class/tty/ttyS0/device/driver -> ../../../bus/pnp...
What is the order of precedence for CSS?
...rying to figure out why one of my css classes seems to override the other (and not the other way around)
8 Answers
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