selector

问题 I'm building my own custom Edit Menu (UIMenuController) and am using the typical -(BOOL)canPerformAction:(SEL)action withSender(id)sender method to conditionally enable / disable system defaults. The typical edit methods are well documented (copy:, cut:, etc.), but I can't find anything about what method is called by the "Define" menu option to pull up the new word dictionary in iOS 5. Maybe it's hiding in plain sight, but I've spent hours looking for it, so I'd appreciate any help.

问题 I have a query like SELECT * FROM membermetas WHERE memberId =15 Table image : and my php code is $memberMetaQuery = "select * from membermetas where memberId='$id'"; $getMemberMeta = mysql_query($memberMetaQuery); $memberMetaRow = mysql_fetch_array($getMemberMeta); when i use " echo $memberMetaRow['memberMeta'] " without while loop, it turns the last row. For example: i would like to use only the row " eposta " and its value " mail@mymail.com " is there any selector for this? I think that,

问题 Inside an object I use NSMenu's addItemWithTitle:action:keyEquivalent: to create NSMenuItems. The problem is that I wish to call a method on another object as action. The action: part takes an @selector as parameter and I don't know how to use this to call methods on other objects. I could create a method inside the object creating the NSMenu and then from that object I could call the method I would like to call on another object.. But then I don't know any good naming convention for that.

问题 I want to send doSomething to the firstResponder , which could be any of several objects. menuItem = NSMenuItem(title: "Do Something!", action: Selector("doSomething"), keyEquivalent: "") I was using Selector("doSomething") prior to Swift 2.2. How do I do it now? 回答1: Create a protocol with the Selector doSomething and have all of your objects that can be first responders conform to it. Then implement the selector for your classes. @objc protocol MyProtocol { func

问题 Below is the Jason data received from service call. "response": { "eventSessions": { "sessions": [ { "startTime": "07:00:00", "sessionId": 21234, "endTime": "08:00:00", "eventId": 1234, "modifiedDate": "2010-12-07", "sessionDate": "2010-12-07", "numberOfAttendees": 3, "sessionName": "SessionName", }, { "startTime": "09:00:00", "sessionId": 21235, "endTime": "10:00:00", "eventId": 1234, "modifiedDate": "2010-12-07", "sessionDate": "2010-12-07", "numberOfAttendees": 3, "sessionName":

问题 I tried some different things to get the first element to set its display property to block, the rest should be set to none. But I'm not able to get just the first appearance of the element, every time I use a selector I get all elements or none of them. Maybe some of you know some CSS Tricks to solve my Prob. Here is my code: <div class="some_class"> <p>...</p> <p>...</p> <p> <object height="300" width="480"></object></p> <p> <object height="300" width="480"></object></p> <p> <object height=

问题 This question already has answers here : How to select html nodes by ID with jquery when the id contains a dot? (8 answers) Closed 2 years ago . Assume that I have a <li id="gen__1002_____46.14_li"> I want to select this li . To be able to achieve it, I wrote, var id="gen__1002_____46.14_li"; document.querySelector("#" + id); But querySelector returns as; Failed to execute 'querySelector' on 'Element': '#gen__1002_____46.14' is not a valid selector. When id does not include dot character, it

问题 This question already has answers here : jQuery .on function for future elements, as .live is deprecated [duplicate] (2 answers) Closed 6 years ago . I have a form thats loads an image. I need to do a function that is been called by the image Onclick Event. The problem is that the selector ( I'm using jQuery) can't find the image id, because when the function is loaded the image wasn't yet there. SOLUTION : After the image upload --> $("#"+foto_nom).bind({ click:function(){ alert(this.id); }

问题 I am running a long time selector test on the windows7 system on the eclipse console.After 12 hours, so much select.open have been done seccessfully times by times, it,the 'selector.open()', suddenly throws the following excetption: java.io.IOException: Unable to establish loopback connection at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:125) at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:69) at java.security.AccessController.doPrivileged(Native Method) at sun.nio.ch.PipeImpl.

问题 I have a Google Map with some simple buttons added to pan to different locations. <input id="loc0" type="button" value="Cape Sable (6)"> <input id="loc1" type="button" value="Florida Bay (3)"> Originally, I was using this code to make the buttons work: var locations = [ new google.maps.LatLng(25.171, -81.060), new google.maps.LatLng(25.211, -80.650) ]; $('#loc0').click(function(){ map.panTo(locations[0]); map.setZoom(12); }); $('#loc1').click(function(){ map.panTo(locations[1]); map.setZoom