dynamic

问题 Why I cant overload Method with dynamic and object Parameters. void Method(dynamic arg) // Member with same signature is already declared { Console.WriteLine("Dynamic"); } void Method(object arg) // Member with same signature is already declared { Console.WriteLine("Not Dynamic"); } But I can overload Method with dynamic and another type except object or dynamic it self. void Method(dynamic arg) { Console.WriteLine("Dynamic"); } void Method(string arg) { Console.WriteLine("Not Dynamic"); } As

问题 I'm trying to access function from dynamic library, that instantiates an instance of Person, and returns pointer to it as void pointer. The program then has to cast the void pointer to a Person, using a reinterpret_cast. But, I'm getting an error: error: ‘void*’ is not a pointer-to-object type. Here is the code: function from library: void* loadPerson (void) { return reinterpret_cast<void*>(new Person); } main.cpp: void* loadPerson = dlsym(lib_handle, "loadPerson"); void* person_vp = (

问题 I was trying to solve my problem with colored progress bars in this thread. The solution was present, but then I ran into another problem: I can't change color dynamically from my code. I want to do it right from my code, not with pre-defined .css. Generally I can do it, but I run into some difficulties when I try to do it with more than one progess bar. public class JavaFXApplication36 extends Application { @Override public void start(Stage primaryStage) { AnchorPane root = new AnchorPane();

问题 I have a type ConfigValue that exposes a dynamic interface via an implementation of IDynamicMetaObjectProvider and custom DynamicMetaObject instance. An instance of this type can be seen, of course, as it's native type - analogous to an XML Element - but it can also be seen as an instance of any other object type, according to the contents of the XML and what kind of object it builds (it's a proprietary IOC built by little old me). So <value>10</value> Can be seen as a ConfigValue but also

问题 I'm working on some dynamic grouping of my jqGrid, per the example posted at: http://www.trirand.com/blog/jqgrid/jqgrid.html (see the last section in the tree nav: 'Grouping: Dynamically Change Grouping'. I can make my grid dynamically change the grouping IFF the grid initially has a grouping column. However, this is not the desired behaviour. Initially the grid needs to be ungrouped and allow the user to group items if they choose. Code follows: function onGroupByChanged(){ var vl = $('

问题 I was recently, um, chastised for generating and loading XAML markup at runtime using XamlReader.Parse(). I was told that there's no reason to use XamlReader--it can always be done with static XAML, predetermined at design time. I attempted to ask this person how I could construct a GridView to show pivoted data, where the number of columns and the binding path for each column is unknown at design time. I have yet to hear back, but even if I did, I figured this would be an interesting

问题 I've found a task on some Java programming competition. One must create class Sentence with only one argument 'text' and only one constructor. Here's sample test code : Sentence s1=new Sentence("only","CAT"), s2=new Sentence("and", 2, "mice"), s3=new Sentence(s1,s2,"completely","alone"), s4=new Sentence(s3, "on the ", new Integer(32), "th street"); System.out.println(s1); Only cat. System.out.println(s2); Only cat and 2 mice. System.out.println(s3); Only cat and 2 mice completely alone.

问题 NSArray *sectionArray; int sectionCount=0; NSDictionary *orderedData; NSString *checkInStr, *checkOutStr; NSString *govtTaxes, *enhancementTotal, *grandTotal; - (void)viewDidLoad { [super viewDidLoad]; [self setupTable]; [self.bookingsTableView reloadData]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; } -(void)viewDidDisappear:(BOOL)animated { if(doesSendNotification){ NSLog(@"summary view disappeared"); [[NSNotificationCenter defaultCenter] postNotificationName:@

问题 I have a list of profile images which appear in a "menu drop down" div which is initially hidden via CSS. I would like to load these images dynamically (as a list) when each menu item is selected, so as to reduce the page loading time. How is this possible? 回答1: Try to use: $("#divID").html("<img style='position:absolute' src='path/to/the/ajax_loader.gif'>"); If you using ajax: function sendAjax() { $("#divID").html("<img style='position:absolute' src='path/to/the/ajax_loader.gif'>"); // you

问题 I have a list of profile images which appear in a "menu drop down" div which is initially hidden via CSS. I would like to load these images dynamically (as a list) when each menu item is selected, so as to reduce the page loading time. How is this possible? 回答1: Try to use: $("#divID").html("<img style='position:absolute' src='path/to/the/ajax_loader.gif'>"); If you using ajax: function sendAjax() { $("#divID").html("<img style='position:absolute' src='path/to/the/ajax_loader.gif'>"); // you