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WPF: How do I disable the SystemMenu shortcut 'Alt+Space'?

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问题 I have a borderless window and created the chrome but I need to disable the 'Alt+Space' shortcut. Any thoughts? 回答1: I'm not very good with WPF, but after some messing around, this seems to be on the right track. Just throw it in your Window code-behind: protected override void OnKeyDown(KeyEventArgs e) { if (Keyboard.Modifiers == ModifierKeys.Alt && e.SystemKey == Key.Space) { e.Handled = true; } else { base.OnKeyDown(e); } } 来源： https://stackoverflow.com/questions/2277021/wpf-how-do-i

String Trim Spaces doesn't work

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问题 I have a problem with a String. The string is like this: string something = " whatever and something else "; Now I'm trying to get rid of the spaces at the beginning and at the end like this: something = something.Trim(); But that didn't work, I also tried this: something = something.TrimStart(); something = something.TrimEnd(); And this: something = something.TrimStart(' '); something = something.TrimEnd(' '); And this: int lineLength = line.Length; string LastCharacter = line.Remove

Gnuplot: vertical space between series titles

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问题 How to change the vertical space between series titles. Is it possible to separate the series titles into two groups and have a gap between them, like this one: Thanks. 回答1: You can insert some kind of 'dummy' plot where you want to have the white space: set xrange [0:4] set key left plot x, \ 2*x t '2x', \ NaN title ' ' lt -3,\ 3*x t '3x',\ 4*x t '4x' The special linetype -3 doesn't draw any line at all, using linewidth 0 wouldn't work for all terminals (e.g. postscript). And the title must

How to specify different delays between slides in bxslider

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问题 Ran across the following problem in bxslider- how can you apply different delays between slides in the auto show? 回答1: I came up with the following solution which I will show here: in the jquery.bxslider.js replace: el.startAuto = function(preventControlUpdate){ // if an interval already exists, disregard call if(slider.interval) return; // create an interval slider.interval = setInterval(function(){ slider.settings.autoDirection == 'next' ? el.goToNextSlide() : el.goToPrevSlide(); }, slider

springmvc hibernate jvm permGen Space

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【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 最近项目突然出现了“java.lang.OutOfMemoryError: PermGen space”的错误，其实关于 PermGen space 错误的解释，网上已经有很多了，摘录一段 PermGen space的全称是Permanent Generation space,是指内存的永久保存区域, 这块内存主要是被JVM存放Class和Meta信息的,Class在被Loader时就会被放到PermGen space中,它和存放类实例(Instance)的Heap区域不同,GC(Garbage Collection)不会在主程序运行期对 PermGen space进行清理，所以如果你的应用中有很多CLASS的话,就很可能出现PermGen space错误,这种错误常见在web服务器对JSP进行pre compile的时候。如果你的WEB APP下都用了大量的第三方jar, 其大小超过了jvm默认的大小那么就会产生此错误信息了。 java其实并不推荐大量使用反射来构造对象很多人都把这个错误的原因，很大程度上都归结于使用了spring hibernate……，因为他们动态产生类（java反射），导致溢出（spring在AOP的时候使用CBLIB会产生很多类，hibernate反射也会产生很多类）原因是：

Spaces in file path in java

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问题 I have a folder which contains few jar files. I am referring to those jar files from another jar file which is in some other location. My problem is, when I give the path of the jar folder like this C:\Trial Library\jar Folder\ ie. with space in the folder names (Trial Library) then it is unable to locate this folder. If I give without space ie C:\Trial_Library\jar_Folder\ then it works fine. Please help me to fix this issue ASAP. Here is my Batch File set CURRENT_DIRECTORY=%~dp0 set ANT_HOME

PHP preg_match with regular expression: only single hyphens and spaces between words

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问题 How can I allow single hyphens and single spaces only within words but not at the beginning or at the end of the words? if(!preg_match('/^[a-zA-Z0-9\-\s]+$/', $pg_tag)) { $error = true; echo '<error elementid="pg_tag" message="TAGS - only alphanumbers and hyphens are allowed."/>'; } I don't want to accept these inputs below ---stack---over---flow--- stack-over-flow- stack-over-flow2 stack over flow but only these are acceptable, stack-over-flow stack-over-flow2 stack-over-flow3 stack over

HTML string remove extra spaces with the help of javascript

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问题 Hi I have a HTML string like " <div> You have received an alert from project Project Name Alert Name Alert Name Alert Name Follow these steps to access the alert: <ol> <li>Log into your for Contract

HTML string remove extra spaces with the help of javascript

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php creating extra space in html page

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问题 I'm new to web development and I'm really stuck with this silly problem. When I insert php code before html code, something like this: <?php ...some code... ?><!doctype html><html>... it creates extra blank space on top of my page and 'pushes' whole content down. Is it possible to somehow avoid creating that extra space? It also makes extra space if the php code is in body part of html, for example if it's in between two paragraphs it will create extra space between that two paragraphs.