dynamic

问题 This question already has answers here : Java Inheritance - instance variables overriding (3 answers) Closed 6 years ago . In the following program. methods are called as per type dynamically. But how about calling variables dynamically. why can't it do so? class Super { public int field = 0; public int getField() { return field; } } class Sub extends Super { public int field = 1; public int getField() { return field; } public int getSuperField() { return super.field; } } public class

问题 I am building an ASP.NET MVC application and I am using the jQuery Blueimp plugin on a PartialView that is added dynamically to the page. According to the Docs of the plugin I need to do this: $(function () { $('#fileupload').fileupload({ dataType: 'json', done: function (e, data) { $.each(data.result.files, function (index, file) { $('<p/>').text(file.name).appendTo(document.body); }); } }); }); But this of course will not work in my case, because my PartialView does not exist on the page at

问题 I still haven't upgraded to 4.0 else I would have checked the code snippet myself. But I hope some expert can comment on this. In following code, will the appropriate Print() method be called at runtime? Is it even legal in C# 2010 to call it that way? public void Test() { dynamic objX = InstantiateAsStringOrDouble(); Print(objX); } public void Print(string s) { Console.Write("string"); } public void Print(double n) { Console.Write("double"); } Thanks! 回答1: Yes, that does in fact work. It

问题 I'd like to set the length of a dynamic array, as suggested in this post. I have two classes TMyClass and the related TChildClass defined as TChildClass = class private FField1: string; FField2: string; end; TMyClass = class private FField1: TChildClass; FField2: Array of TChildClass; end; The array augmentation is implemented as var RContext: TRttiContext; RType: TRttiType; Val: TValue; // Contains the TMyClass instance RField: TRttiField; // A field in the TMyClass instance RElementType:

问题 I'm new to angulajs and I'm trying to dynamically add image to a column when user selects it. Here is the below code and it did not work. code in .cshtml file --- <table> <tr> <td> <img ng-src="{{path}}" /> <input type="file" ng-model="path" /> </td> </tr> </table> Code in angularjs file $scope.path = ""; I came across 1 example but written in jquery and this what exactly i need it. http://jsfiddle.net/dwebexperts/4FGg8/1/ Thanks 回答1: For your example, which looks quiet straight forward. I

问题 Since MPI doesn't offer binary compatibility, only source compatibility, we're forced to ship our solver source code to customers for them to use our solver with their preferred version of MPI. Well, we reached the point where we cannot offer source code anymore. As a result, I'm looking into ways to create a wrapper around MPI calls. The idea is for us to provide a header of stub functions, and the user would write the implementation, create a dynamic library out of it, and then our solver

问题 This is something I've been wondering for a while and never found an answer for: Why is it that when you allocate something on the heap you cannot determine the size of it from just the pointer, yet you can delete it using just the pointer and somehow C++ knows how many bytes to free? Does this have something to do with the way it is stored on the heap? Is this information there but not exposed by C++? And perhaps this should be a separate question but I think it's pretty related so I'll ask

问题 This is something I've been wondering for a while and never found an answer for: Why is it that when you allocate something on the heap you cannot determine the size of it from just the pointer, yet you can delete it using just the pointer and somehow C++ knows how many bytes to free? Does this have something to do with the way it is stored on the heap? Is this information there but not exposed by C++? And perhaps this should be a separate question but I think it's pretty related so I'll ask

问题 How can I use javascript to determine if an HTMLScriptElement has already been fully loaded? How can I determine if a dynamically loaded script has finished loading without using the onload or onreadystate change events? Code is as follows: TOOL.loadScript = function (url, callback, reappend, deepSearch) { var head, curr, child, tempScript, alreadyAppended, queue, alreadyHandled, script, handler, loadFunc; head = document.getElementsByTagName("head")[0]; tempScript = document.createElement(

问题 The SSCCE of the problem is as follows. I am dynamically populating JTree , but nothing is happening. import java.awt.BorderLayout; import java.awt.Dimension; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.Vector; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JTree; import javax.swing.tree.DefaultMutableTreeNode; import javax.swing.tree.DefaultTreeModel; import javax