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Completion block for popViewController
...is the option to provide a completion block. Is there a similar equivalent for popViewController ?
18 Answers
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Mongoose populate after save
...r field on a newly saved object ... the only way I can find is to re-query for the objects I already have which I would hate to do.
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Access Container View Controller from Parent iOS
...housing the container view) implement a method like this:
- (void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
NSString * segueName = segue.identifier;
if ([segueName isEqualToString: @"alertview_embed"]) {
AlertViewController * childViewController = (AlertViewContro...
Role-based access control (RBAC) vs. Claims-based access control (CBAC) in ASP.NET MVC
...text.
When you are using Role based authentication, if you have an action for creating customer and you want that the people who are in 'Sale' role should be able to do that, then you write code like this:
[Authorize(Roles="Sale")]
public ActionResult CreateCustomer()
{
return View();
}
Late...
How to use null in switch
...
This is not possible with a switch statement in Java. Check for null before the switch:
if (i == null) {
doSomething0();
} else {
switch (i) {
case 1:
// ...
break;
}
}
You can't use arbitrary objects in switch statements*. The reason that the compil...
iOS 7 - Failing to instantiate default view controller
I am using Xcode 5 in a newly created app and when I just create it I go for the run button e click on it, then the project gets built but it does not show in the iOS Simulator and I get the following message:
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jQuery: Best practice to populate drop down?
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Ancient history here I know, but for googlers like me who just stumbled on this now, wouldn't be even faster if you cloned an <option/> element instead of creating each one?
– tedders
Jan 10 '13 at 23:44
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Better way to check variable for null or empty string?
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// Function for basic field validation (present and neither empty nor only white space
function IsNullOrEmptyString($str){
return (!isset($str) || trim($str) === '');
}
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php - get numeric index of associative array
...s you use a sort function. Not sure what sort of guarantee you're looking for, but it's not like the JavaScript model where there is no static order to associative arrays.
– Fosco
May 1 '12 at 23:20
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Converting String To Float in C#
...this:
float.Parse("41.00027357629127", CultureInfo.InvariantCulture.NumberFormat);
Note, however, that a float cannot hold that many digits of precision. You would have to use double or Decimal to do so.
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