action

问题 How can I add an action for a double tap on my button? 回答1: - (void) buttonTouchDownRepeat:(id)sender event:(UIEvent *)event { UITouch *touch = [[event allTouches] anyObject]; if(touch.tapCount == 2) { NSLog(@"Twice"); } else { NSLog(@"otherwise"); } } 回答2: In IB or code, connect an action to the button's UIControlEventTouchDownRepeat event. The action method should have a signature like this: - (void) buttonTouchDownRepeat:(id)sender event:(UIEvent *)event In the method's implementation, you

问题 I need a way to open the "Advanced wifi" settings programatically to let the user change some of the settings, or, preferably, to change these advanced wireless settings programatically. I can only access the wi-fi settings so far via startActivity(new Intent(Settings.ACTION_WIFI_SETTINGS)) but not the advanced settings. Is there a way to open the "Advanced wifi" settings? 回答1: There are two more settings that might work for you: From the API documentation: Settings.ACTION_WIRELESS_SETTINGS

问题 How do I get the parameters passed into an Action<T> ? The code example should highlight what I'm trying to achieve. Sorry that it's a little bit long. class Program { static void Main(string[] args) { Foo foo = new Foo(); foo.GetParams(x => x.Bar(7, "hello")); } } class Foo { public void Bar(int val, string thing) { } } static class Ex { public static object[] GetParams<T>(this T obj, Action<T> action) { // Return new object[]{7, "hello"} } } The only options that look vaguely useful are

问题 I have a form on my page where users enter their credit card data. Is it possible in HTML to mark the form's action being constant to prevent malicious JavaScript from changing the form's action property? I can imagine an XSS attack which changes the form URL to make users posting their secret data to the attacker's site. Is it possible? Or, is there a different feature in web browsers which prevents these kinds of attacks from happening? 回答1: This kind of attack is possible, but this is the

问题 Wanted to use the same URL for a GET/PUT/DELETE/POST for a REST based API, but when the only thing different about the Actions is which HTTP verbs it accepts, it considers them to be duplicate! "Type already defines a member called 'Index' with the same parameter types." To which I said, so what? This one only accepts GET, this one only accepts POST... should be able to be co-exist right? How? 回答1: That's not ASP.NET MVC limitation or whatever. It's .NET and how classes work: no matter how

问题 I'm new to django and I'm having trouble testing custom actions(e.g actions=['mark_as_read']) that are in the drop down on the app_model_changelist, it's the same dropdown with the standard "delete selected". The custom actions work in the admin view, but I just dont know how to call it in my mock request, I know I need to post data but how to say I want "mark_as_read" action to be done on the data I posted? I want to reverse the changelist url and post the queryset so the "mark_as_read"

问题 How can I get the list of all actions of Controller? I search but cannot find example/answer. I see some example recommended using reflection but I don't know how. Here is what I am trying to do: public List<string> ActionNames(string controllerName){ } 回答1: You haven't told us why you need this but one possibility is to use reflection: public List<string> ActionNames(string controllerName) { var types = from a in AppDomain.CurrentDomain.GetAssemblies() from t in a.GetTypes() where typeof

问题 I'm creating a simple menuing composite component in JSF 2. However, I am unable to pass a String attribute into the composite component to use in the action attribute of the <h:commandLink>. My component looks like: <composite:interface> <composite:attribute name="title" required="true" type="java.lang.String"/> <composite:attribute name="view" required="true" /> </composite:interface> <!--implementation--> <composite:implementation> <li><h:commandLink action="#{cc.attrs.view}" value="#{cc

问题 I much prefer using an Action or a Func if I need a quick reusable piece of code, however others on my team don't like them or understand them. At the moment my only real argument is about preference and more up to date code practices, but those are just bad arguments. Why is it better to do this: Action<FormView,String> hideControl = (form,name) => { var button = form.GetControl<Button>(name); if (button != null) button.Visible = false; } than: public static void HideControl<T>(this FormView

问题 I much prefer using an Action or a Func if I need a quick reusable piece of code, however others on my team don't like them or understand them. At the moment my only real argument is about preference and more up to date code practices, but those are just bad arguments. Why is it better to do this: Action<FormView,String> hideControl = (form,name) => { var button = form.GetControl<Button>(name); if (button != null) button.Visible = false; } than: public static void HideControl<T>(this FormView