selector_开发者

jQuery Selector: how can I specify one select menu when I have more than one?

I have 4 select menus, all with the same products. (User is supposed to use the select menus to add products to an invoice).[详细]

2023-04-13 07:50 分类：问答

Change a String

Not sure how to ask this question, but here goes. Say I have: var foo = \'marginLeft\'; How can I change it into:[详细]

2023-04-12 18:11 分类：问答

Expected CSS "Home" to Return Something RSpec issue

I am trying to get my test suite working and am having some issues. #home_controller_spec.rb require \'spec_helper\'[详细]

2023-04-12 17:55 分类：问答

How can a SEL, defined to return id, represent a method that returns a double?

In Objective-C there is a type named SEL. It\'s defined like this: id (*SEL)(id self, SEL _cmd,...); but if we make a method whose return type i开发者_运维知识库s double, the id type is not good to[详细]

2023-04-12 17:21 分类：问答

Can anyone explain selectors according to this excerpt from the Apple Objective-C documentation?

From the Apple Objective-C documentation, bolded relevant parts: Method Return and Parameter Types The messaging routine has access to method implementations only[详细]

2023-04-12 16:08 分类：问答

Change of child widget colour on focus at Parent widget - Android

I have a listview with three textviews embedded in it. On focus at listview the requirement is to change the colour of listview from white to red.[详细]

2023-04-12 11:46 分类：问答

is there way to check if performSelector:withObject:afterDelay: has been registered?

I whould like to know if there is a way to determine ifperformSelector:withObject:afterDelay: for the given object has been called (registered to be called). (I could use cancelPreviousPerformRequests[详细]

2023-04-12 08:20 分类：问答

Using a jQuery selector that uses the '@' symbol in an MVC3 application

开发者_运维知识库Here\'s what I\'m trying to run: <script type=\"text/javascript\"> $(\"input[@name=\'paymenttype\']\").change(function(){[详细]

2023-04-12 01:06 分类：问答

Can't select added tr by jQuery

I add table and it\'s raws by jQuery when find result in database,and remove table when don\'t find anything.It works correctly.[详细]

2023-04-11 00:04 分类：问答

UIBarButtonItem causes "Unrecognized selector sent to instance"

I call an instance to a class in my main.m to my Controls.m class but it seems to be giving me a \"Unrecognized selector sent to instance\" error. Any idea what I am doing wrong here? Every time I hit[详细]

2023-04-10 23:21 分类：问答