clone

问题 I'm facing issues while cloning an existing chosen element (not the options but the entire select box) and creating a dynamic id for them. I'm able to clone the chosen element however, it has the same id generated as that of parent chosen and is not allowing to select an option in there. When I click on the newly generated chosen box, the parent chosen that was cloned is showing the list of options to select instead of child chosen. Child chosen was made frozen and I'm unable to select the

问题 I wish to copy a complex data-bound UIElement but keep the Binding, Layout and Rendering information from the original UIElement. Creating a new UIElement seems inefficient since I would have to do another complete Binding/Measure/Arrange/Render pass. The closest I've got so far is to create a new DrawingVisual , open it for rendering, and DrawDrawing using the source UIElement DrawingGroup . DrawingVisual dv = new DrawingVisual(); DrawingGroup dg = VisualTreeHelper.GetDrawing(SourceElement);

问题 clone() method is not visible by default in Object class so how does it does not give error for Array types? Does this means that there is a type called int[] of which implementation is written in java and if yes where to find it ? and if it is written then why not write it completely? I mean why not implement every method properly not just the behaviour from Object Class. int[] a ={1,2,3}; Object object = new Object(); object.clone();//Does not compile since clone is protected. a.clone();//

问题 I have a problem cloning dynamic object with the code like this: public void Execute(IPrepareData entity) { try { dynamic data = entity.Primary as dynamic; data.PreviousInfo = deepClone(data.Info); } catch (Exception ex) { data.Errors.Add(ex.Message); } } private static T deepClone<T>(T obj) { if (typeof(T).IsClass || typeof(T).IsArray) { if (ReferenceEquals(obj, null)) { return default(T); } } using (var memoryStream = new MemoryStream()) { BinaryFormatter fieldFormatter = new

问题 I have a local git repository. I want to clone it on the local machine by hardlinked files to save disk space. How can I do it? 回答1: a Git repository is made, by simplification, of 3 kind of files : Database-like objects ( $GIT_DIR/objects ): These objects are never modified, some can be added, some can be removed, but the files are never modified. It means that they can be exactly the same between many clones. repository-specific configuration and status ( $GIT_DIR ): These files contains

问题 So basically every time I click on the icon '.favorite i' it should add an object to my array. If I click the first time it adds the parent div to the array, but on the second time it deletes the first one and grabs the last parent div. I'm working with three tabs called 'Monday', 'Tuesday' and 'Favorites'. I have a toggle icon which is an empty heart at start 'favorite i'. If I'm in Monday and click on the icon, the empty heart turns to be filled out and its parent is cloned and added to the

问题 What I want to do is change every alert in the code to a custom alert("you used alert"); var hardCodedAlert = alert; //I know this won't work.But what to do ? window.alert=function(){ if(this.count == undefined) this.count=0; this.count=this.count+1; if(this.count == 1) hardCodedAlert("You used alert"); }; 回答1: Yes, you can do (for example): var oldalert = window.alert; window.alert= function alert(t){ alert.count = !alert.count ? 1 : alert.count + 1; oldalert(t+' - That\'s alert nr '+alert

问题 I have two git repositories: report.git (Master on remote location) cloned.git (Local) I lost report.git. I have the cloned.git. I want to clone other repositories from this cloned.git. This is possible but my question is am I missing something? Is cloned.git really the same as the master report.git? cloned.git still points to the Master report.git. I changed this by removing the options in the .git/config. Is this enough? 回答1: Your cloned.git repository is a clone (copy) of report.git in the

问题 I'm having trouble cloning a Map in a compact way: extern crate itertools_num; use itertools_num::linspace; fn main() { // 440Hz as wave frequency (middle A) let freq: f64 = 440.0; // Time vector sampled at 880 times/s (~Nyquist), over 1s let delta: f64 = 1.0 / freq / 2.0; let time_1s = linspace(0.0, 1.0, (freq / 2.0) as usize) .map(|sample| { sample * delta}); let sine_440: Vec<f64> = time_1s.map(|time_sample| { (freq * time_sample).sin() }).collect(); let sine_100: Vec<f64> = time_1s.map(

问题 What is a quick and easy way to fill a Java array with clones of a single object? e.g. after: Rectangle[] rectangles = new Rectangle[N]; fillWithClones(rectangles, new Rectangle(1, 2, 3, 4)); the rectangles array would contain N distinct Rectangle instances, initialised with the same coordinates. I am aware of the flaws of Object.clone() in Java, but in this case I know that the objects to be copied have non-throwing, public clone() methods but may or may not have a public copy constructor. I