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ASP.NET MVC: Custom Validation by DataAnnotation
...ationContext.ObjectInstance, null)).OfType<string>();
var totalLength = values.Sum(x => x.Length) + Convert.ToString(value).Length;
if (totalLength < this.MinLength)
{
return new ValidationResult(this.FormatErrorMessage(validationContext.DisplayName));...
Should I use #define, enum or const?
...when running, the less damage it can do.
Here are some examples to put it all together.
void showRecords(TRecordType mask) {
assert(RecordType::IsValidMask(mask));
// do stuff;
}
void wombleRecord(TRecord rec, TRecordType state) {
assert(RecordType::IsValidState(state));
if (Recor...
PHP: exceptions vs errors?
...
Exceptions are thrown - they are intended to be caught. Errors are generally unrecoverable. Lets say for instance - you have a block of code that will insert a row into a database. It is possible that this call fails (duplicate ID) - you will want to have a "Error" which in this case is an "Exc...
Daemon Threads Explanation
... them, and when your program quits, any daemon threads are killed automatically.
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Seeing escape characters when pressing the arrow keys in python shell
In shells like the interactive python shell, you can usually use the arrow keys to move around in the current line or get previous commands (with arrow-up) etc.
...
Image Greyscale with CSS & re-color on mouse-over?
...rayscale(100%);
/* Chrome 19+ & Safari 6+ */
-webkit-transition: all .6s ease;
/* Fade to color for Chrome and Safari */
-webkit-backface-visibility: hidden;
/* Fix for transition flickering */
}
img.grayscale:hover {
filter: none;
-webkit-filter: grayscale(0%);
}
sv...
Switching between Android Navigation Drawer image and Up caret when using fragments
...nly those screens that are represented in the Navigation Drawer should actually have the Navigation Drawer image" and that "all other screens have the traditional up carat."
...
Logging Clientside JavaScript Errors on Server [closed]
...lippeLeclerc Yes. And worse, it will DoS your server endpoint if you ever fall into an error loop. You should add a throttling function to this to prevent a client from hitting the server too fast. Here is an example of this from {Track:js} github.com/TrackJs/Tech-Demo/blob/master/src/TrackJs.Demo/...
How to view the SQL queries issued by JPA?
When my code issues a call like this:
16 Answers
16
...
C# Regex for Guid
...{12}[)}]?$",
"'$0'");
This matches the following styles, which are all equivalent and acceptable formats for a GUID.
ca761232ed4211cebacd00aa0057b223
CA761232-ED42-11CE-BACD-00AA0057B223
{CA761232-ED42-11CE-BACD-00AA0057B223}
(CA761232-ED42-11CE-BACD-00AA0057B223)
Update 1
@NonStatic mak...