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可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I was wondering if it is possible to create a popup dialog box interactive by using shiny (and shinyBS). For example, I have a string and I want to change it and before doing a dialog box shows up asking if I really want to change it. In case I say "yes", it does it otherwise it discards the change. Here's my try but I found two issues: 1. if you click "yes" or "no", nothing changes 2. you always need to close the box by the bottom "close". rm ( list = ls ()) library ( shiny ) library ( shinyBS ) name Other proposals are more than

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Update: I checked the answer before I fully tested it still does not work. I updated the code below so you should just be able to paste in to a empty WinForms project and it should compile. UPDATE: I have found that if I change the selected item on the ComboBox to any other item, it now behaves as expected (in my code below I would switch from test1 to test2). As I have not received any answers yet, I change the question to this. Why do I have to change to a different item in the combo box before it will show the changes I make to the

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have an html select element which I would like to style for print so that it just looks like the selected text. How can I hide the drop down arrow? 回答1: You can't. There is nothing in the standards that specifies that the select element has to have an arrow to indicate to the user that it has options to choose from, or how those options are shown. As those visual elements are not defined, there is naturally nothing defined for changing them. You just have to display a different element when printing. 回答2: The below works for Firefox,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am a bit confused about the virtual / new / override thing. Here's an example: class A { public virtual void mVVirtual() { Console.WriteLine("A::mVVirtual"); } } class B : A { public virtual void mVVirtual() { Console.WriteLine("B::mVVirtual"); } } class C : B { public override void mVVirtual() { Console.WriteLine("C::mVVirtual"); } } class Test { static void Main() { B b1 = new C(); b1.mVVirtual(); //C::mVVirtual ... I understand this A a2 = new C(); a2.mVVirtual(); //A::mVVirtual ... ??? } } I don't get why in the second call we get A:

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: On my website there is a situation where I need to append new tags to a specific selection box. I am doing the following: 1.Make an ajax request which returns option tags like one two etc., 2.Set the inner html of a specific selection box by document.getElementById("id").innerHTML=response; it works well in firefox/chrome but not in IE.... any known solution for this..?? 回答1: It's a known IE bug. You can either user DOM methods to append/replace the option elements, or you can use the workarounds suggested by Microsoft , one of which is to

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am working on software using OpenCV in C++ environment. The objective is to detect a boxing glove and draw a bounding box around gloves contours . The problem I am running into is that the bounding box is drown more than once in fact multiple boxes are drawn. What I was trying to do over the past few days is to somehow eliminate the number of boxes drawn and have only one big bounding box drawn. I was looking at some techniques to fill in the object int its whole which i believe would really help in this case. Below I have posted the code

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Im just looking for an answer in my simple problem. Here it is I have a pricturebox that has image with transparent background i Set the picturebox backcolor as transparent. and after that, the picture has transparent bg . But after i added this code ìmg1.Left = windows.forms.cursor.Position.X - me.Left ìmg1.Top= windows.forms.cursor.Position.Y - me.Top 'code for using img as cursor the image bg is not really transparent like this I think the transaparent backcolor is not really transparent. it will only get the backcolor of form and use it

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I would like the following code to produce 4 subplots of the same size with a common aspect ratio between the size of x-axis and y-axis set by me. Referring to the below example, I would like all of the subplots look exactly like the first one (upper left). What is wrong right now is that the size of the y-axis is correlated with its largest value. That is the behaviour I want to avoid. import matplotlib.pyplot as plt import numpy as np def main(): fig = plt.figure(1, [5.5, 3]) for i in range(1,5): fig.add_subplot(221+i-1, adjustable='box',

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I read the other threads that had to do with this error and it seems that my problem has an interesting distinct difference than all the posts I read so far, namely, all the other posts so far have the error in regards to either a user created class or a builtin system resource. I am experiencing this problem when calling a function, I can't figure out what it could be for. Any ideas? BOX_LENGTH = 100 turtle.speed(0) fill = 0 for i in range(8): fill += 1 if fill % 2 == 0: Horizontol_drawbox(BOX_LENGTH, fillBox = False) else: Horizontol

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: We are using a QTableView with Qt 4.6.3, and need a column that only has a checkbox in each cell. We're using a custom subclass of QAbstractTableModel as the model for the QTableView . Right now, we have a checkbox by setting the Qt::ItemIsUserCheckable flag. But we can't figure out how to get rid of the blank textbox next to the checkbox! How can we make the column only have a checkbox, nothing else? 回答1: Here is a solution. For this to work properly, your column should not have the Qt::ItemIsEditable or Qt::ItemIsUserCheckable flags set.