class

Does the new SvgImageSource class designed for UWP can be used in WPF project

由 让人想犯罪 __ 提交于 2020-02-26 00:56:52
问题 It seems that a relatively new class: SvgImageSource can only be used in UWP. Is there any way to use it in a WPF project and how? 回答1: It will be possible to use any UWP XAML UI in WPF using XAML Islands. This is currently available as a preview using the WindowsXamlHost control which is part of the Windows Community Toolkit . Also note, that when using UWP controls in WPF apps, the app will then work only on Windows 10 client PCs. 回答2: Please take a look at this framework: SharpVectors The

jquery二级导航

由 痞子三分冷 提交于 2020-02-25 22:49:19
效果图 直接放代码 <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>cat</title> <link rel="stylesheet" href="../css/base.css"> <link rel="stylesheet" href="../css/cat.css"> </head> <body> <div class="content"> <div class="container"> <div id="cat" class="cat"> <a href="#" class="cat-title"><i class="cart-icon">#</i>商品分类</a> <div class="cat-item dropdown" data-active="cat" data-load="../js/cat-1.json"> <div class="dropdown-toggle"> <a href="#" class="cat-item-link">家用电器</a> <span class="dropdown-arrow cat-arrow">></span> </div> <div class="dropdown-list"> <div class="dropdown

触发器、存储过程和事务处理使用

由 馋奶兔 提交于 2020-02-25 07:56:13
-- 创建数据库 scroll dynamic create database Database1 GO -- 置此数据库为当前数据库 use Database1 GO -- 创建学生表 create table student ( SID varchar ( 20 ) primary key , -- 学生编号 SName varchar ( 20 ), -- 学生姓名 SClass varchar ( 20 ), -- 学生班级 SSex varchar ( 10 ), -- 学生性别 SScore float default ( 0 ) check (SScore >= 0 ) -- 学生平均分 ) GO -- 创建课程表 create table class ( EID varchar ( 20 ) primary key , -- 课程编号 EName varchar ( 20 ), -- 课程名称 ETime int check (ETime >= 0 ) -- 课程课时 ) GO -- 创建分数表 create table score ( SID varchar ( 20 ), -- 学生编号 EID varchar ( 20 ), -- 课程编号 EScore float , -- 课程分数 primary key (SID,EID), -- 定义主码

Thread.currentThread().getContextClassLoader() 和 Class.getClassLoader()区别

由 依然范特西╮ 提交于 2020-02-24 14:26:15
Thread.currentThread().getContextClassLoader() 和 Class.getClassLoader()区别 查了一些资料也不是太明白两个的区别，但是前者是最安全的用法 忘记以前有没有问过这个问题,总之我现在有看到几个地方有这个: Thread.currentThread().getContextClassLoader() 我总是想不出在什么情况下会用这种方式获得一个ClassLoader,因为好像默认情况下,它返回的是和加载应用的ClassLoader是同一个,比如说在一个类Test中写 ClassLoader cl = Thread.currentThread().getContextClassLoader(); 为何不直接用Test.class.getClassLoader() 获得当前上下文的类加载器是啥意思?有啥好处? Java code ? 1 2 3 4 5 6 7 8 9 10 11 public class Test { public static void main(String[] args) { // 此时三个ClassLoader是同一个对象 System.out.println(Thread.currentThread().getContextClassLoader()); // 当前线程的类加载器 System

Inherit private members from base class

由 大城市里の小女人 提交于 2020-02-24 12:22:59
问题 This question has already been asked here -- more than twice, actually --, but I myself haven't been able to derive a solution to my problem from the posts. What I have is a library, with, among others, a class named A in it. From class A I need to access an std::map<> , but it is private. Also, and based on the possibilities I found in the post I mentioned, class A has no templated function. I'm actually able to recompile the library, so that I could simply change the visibility. However ,

Dojo------DOM基础之Query

由 匆匆过客 提交于 2020-02-24 08:59:50
使用DOM，最重要的是快速有效的检索节点 dojo/query模块检索一个节点列表，支持CSS3的选择器 一、查询 比如以下html: 1 <ul id="list"> 2 <li class="odd"> 3 <div class="bold"> 4 <a class="odd">Odd</a> 5 </div> 6 </li> 7 <li class="even"> 8 <div class="italic"> 9 <a class="even">Even</a> 10 </div> 11 </li> 12 <li class="odd"> 13 <a class="odd">Odd</a> 14 </li> 15 <li class="even"> 16 <div class="bold"> 17 <a class="even">Even</a> 18 </div> 19 </li> 20 <li class="odd"> 21 <div class="italic"> 22 <a class="odd">Odd</a> 23 </div> 24 </li> 25 <li class="even"> 26 <a class="even">Even</a> 27 </li> 28 </ul> 29 30 <ul id="list2"> 31 <li class="odd"

EventListener for a class?

由 China☆狼群 提交于 2020-02-23 08:51:23
问题 I have an EventListener that references an Id and it works well, the only problem is that i have at least a dozen places where this EventListener needs to reference so i dont want to have a dozen scripts that are all the same but have a different Id. Is therea way to have the EventListener that references a class that i could use in all the places i need it. Thanks JAVASCRIPT: document.getElementById("chartJump").addEventListener("click", function (e) { e.preventDefault() }); HTML: <ul class=

EventListener for a class?

由 旧巷老猫 提交于 2020-02-23 08:51:15
问题 I have an EventListener that references an Id and it works well, the only problem is that i have at least a dozen places where this EventListener needs to reference so i dont want to have a dozen scripts that are all the same but have a different Id. Is therea way to have the EventListener that references a class that i could use in all the places i need it. Thanks JAVASCRIPT: document.getElementById("chartJump").addEventListener("click", function (e) { e.preventDefault() }); HTML: <ul class=

How to iterate through a property of a class in VB?

由 做~自己de王妃 提交于 2020-02-23 06:59:11
问题 If I have a class object A, and it has properties such as a0, a1, a2... If this class has 100 properties like this (up to a99). I would like to display each of these properties, but I do not want to have 100 lines of code of calling this as following print A.a0 print A.a1 print A.a2 ... print A.a99 The code is too inefficient, so I am wondering if there is a way to loop through these properties. Thank you. 回答1: .NET provides the ability to examine an object at runtime through a process known

How to iterate through a property of a class in VB?

由 非 Y 不嫁゛ 提交于 2020-02-23 06:59:05
问题 If I have a class object A, and it has properties such as a0, a1, a2... If this class has 100 properties like this (up to a99). I would like to display each of these properties, but I do not want to have 100 lines of code of calling this as following print A.a0 print A.a1 print A.a2 ... print A.a99 The code is too inefficient, so I am wondering if there is a way to loop through these properties. Thank you. 回答1: .NET provides the ability to examine an object at runtime through a process known
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