visibility

问题 I want to locate all the hyperlinks in a webpage which has a xml download link and download them in a loop. There is form which arises when the said hyperlink is clicked, and needs to be filled to proceed with the download. I'm facing issues in the visibility of the elements related to this xml files in the webpage, but I receive the following error: "selenium.common.exceptions.ElementNotInteractableException: Message: Element is not visible" I've hereby attached the code, any suggestions to

问题 Is there some object oriented thing that you can call some methods from certain classes, but not all of them? Is there something like that which is similiar to protected ? Say you have a method void foo() and you want it to be available to the programmer in a few types of classes (perhaps something like using Type variables (to specify: T type ). Now, perhaps is there some way, without inheriting the class with foo() in it, or making an interface, to specify which classes or types of classes

问题 Is there some object oriented thing that you can call some methods from certain classes, but not all of them? Is there something like that which is similiar to protected ? Say you have a method void foo() and you want it to be available to the programmer in a few types of classes (perhaps something like using Type variables (to specify: T type ). Now, perhaps is there some way, without inheriting the class with foo() in it, or making an interface, to specify which classes or types of classes

问题 I have a jQuery instant search bar on top of a data table. All records matching the search condition will be visible $(row).show() ; and the rest are hidden $(row).hide() . Problem: After a search, I use the mice to select / copy the list of rows from search result and paste them into Excel. The "hidden" records also get pasted. I tried: $(row).css('visibility','collapse'); instead of hide() -- doesn't work in IE (Row does't collapse) How do I get "visibility:collapse" work in IE? Or is there

问题 In ruby, is there a way to define a method that is visible by every class in the file (or in the module), but not by files that require the file ? Related, but not quite the same: can we redefine a method (for instance a method from a class of the standard library) such that this redefinition is visible only in the current file ? All other files should view the original definition. 回答1: No and no. The only visibilities in Ruby are public, protected, and private. There is no concept of file

问题 I know there are linking issues with Android and I know about using the LinkerPleaseInclude. However I am not sure what to put into the LinkerPleaseInclude.cs file for the problem I am seeing. I have a view which uses the Visibility converter to use a boolean IsBusy property to determine whether a number of controls should be displayed or not . I am using a ProgressBar, a TextView and an ImageView. I have tried a number of combinations to get the linker issue fixed. When deployed as debug it

问题 Do you know a simple (or not simple) way to hide a view (or anything like a view) and let the other views of the screen use the place left blank ? And make the opposite when showing back that view. Something like Android Visibility = GONE for layers. As far as I know, using setHidden=YES only hide the view from the screen but does not rearrange anything around it. On Android, there are 2 hidding method. One like visibility = HIDE, and the other : visibility = GONE. Let's say we have 3 views

问题 I try to understand final fields semantic. Lets research code: public class App { final int[] data; static App instance; public App() { this.data = new int[]{1, 0}; this.data[1] = 2; } public static void main(String[] args) { new Thread(new Runnable() { public void run() { instance = new App(); } }).start(); while (instance == null) {/*NOP*/} System.out.println(Arrays.toString(instance.data)); } } I have some questions: Does jmm guarantee, that if application terminates then it output [1,2] ?

问题 I'm trying to implement XamDataGrid column visibilty in a MVVM architecture and it does not seems to be working. I'm doing the following: Adding Visiblility property for an unbound field - <igDP:UnboundField Name="gridCustomerId" Label="ID" Binding="{Binding customerid, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Visibility="{Binding ShowCustomerIDColumn, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"> In my View Model, adding a proerty of Visibility type: //ToShow CustomerID

问题 Suppose I have a variable "counter", and there are several threads accessing and setting the value of "counter" by using Interlocked, i.e.: int value = Interlocked.Increment(ref counter); and int value = Interlocked.Decrement(ref counter); Can I assume that, the change made by Interlocked will be visible in all threads? If not, what should I do to make all threads synchronize the variable? EDIT: someone suggested me to use volatile. But when I set the "counter" as volatile, there is compiler