我尝试使用运行代码分析选项VisualStudio 2012,因此我得到了一个警告
CA1001 Types that own disposable fields should be disposable
Implement IDisposable on 'DBConnectivity'
because it creates members of the following IDisposable types: 'SqlConnection', 'SqlCommand'.
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我在SO中提到了一些问题,但是我无法理解这一点,IDisposable
并且关注的是该类,负责此警告.
class DBConnectivity
{
public SqlConnection connection = null;
public SqlCommand command = null;
public SqlDataReader dataReader = null;
public string connectionString = null;
public List<MasterTableAttributes> masterTableList;
public DBConnectivity()
{
connectionString = ConfigurationManager.ConnectionStrings["Master"].ConnectionString;
connection = new SqlConnection(connectionString.ToString());
//-----Master table results
connection.Open();
string masterSelectQuery = "SELECT * FROM MASTER_TABLE"; …Run Code Online (Sandbox Code Playgroud) Jquery click事件不适用于设备中的li.我尝试使用click和touchstart事件,但使用touchstart时的问题是我无法向下滚动div.当我尝试通过单击li向下滚动时,它会被选中.有没有办法选择和滚动li使用任何jquery事件而不是jquery移动事件?
$('#liId').on({ 'touchstart' : function(){ console.log('Event Fired'} });
Run Code Online (Sandbox Code Playgroud) 我正在使用CTE与PetaPOCO并获得一个奇怪的错误
SQL Exception: Invalid Object Name PayTransactionForRollingVacationAverage,该错误引用了数据应该映射到的模型.
代码如下.
public IEnumerable<PayTransactionForRollingVacationAverage> GetPayTransactionForRollingVacationAverage(DateTime payEndingDate)
{
PointsNorth.PetaPoco.Sql sql = new PointsNorth.PetaPoco.Sql();
sql.Append(@"
;with HolidayWeeks as
(
Select Distinct EmployeeId, PayEndDate, 'Y' as HolidayWeek
from PayTransactions
where PayEndDate = @payEndingDate
and LaborCode in ('251', '249')
)", new { payEndingDate });
sql.Append(@"
Select
PT.EmployeeId,
PT.PayEndDate,
J.JobClass,
PayCodes.AverageRateCode,
PT.RegularHours,
PT.RegularRate,
PT.RegularAmount
from PayTransactions PT
Left Outer Join PayCodes on PayCodes.PayCodeCode = PT.LaborCode
Left Outer Join HolidayWeeks as H on H.PayEndDate = PT.PayEndDate and H.EmployeeId = …Run Code Online (Sandbox Code Playgroud) 我正在使用jQuery validation plugin,用于表单验证.但是我无法为a设置验证div.
这是我到目前为止所尝试的
HTML:
<form id="form">
<div id="location" name="location"></div>
</form>
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JS:
$('#form').validate({
rules: {
isLocationEmpty: true;
}
});
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CustomValidation Mehthod:
$.validator.addMethod('isLocationEmpty', function (value, element) {
var loc = $('#location').text();
return (loc != "")
}, 'REQUIRED.');
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我之前没有这样做,请提供您的建议.
I keep getting
Uncaught TypeError: Cannot read property 'msie' of undefined
when I try to console log a view from couchdb. I'm new to coding and I don't know what this error means. When I use an ajax call to basically do the same thing it works and pulls the view from my couch database. This is for school so I need to get the couch call working. thanks for any help.
HTML:
<html>
<head>
<title>SK8
TEAMS</title>
<meta charset="utf-8"/>
<meta …Run Code Online (Sandbox Code Playgroud) 以下是我的代码:
var availableTags = ["ActionScript", "AppleScript", "Asp", "BASIC", "C", "C++",
"Clojure", "COBOL", "ColdFusion", "Erlang", "Fortran", "Groovy", "Haskell",
"Java", "JavaScript", "Lisp", "Perl", "PHP", "Python", "Ruby", "Scala", "Scheme"];
$("#City").autocomplete({
source: availableTags
});
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从文档中,默认行为是一种dropdown匹配的项目.但对我而言,它显示出来
截图:
有10个结果可用,使用向上和向下箭头键进行导航.

抱歉,我无法在jsfiddle中重现此行为.使用向上和向下箭头键完成导航.我不想要这个,我怎样才能恢复默认下拉列表?请分享您的建议.
更新:
与@Anton参考,我能够以除去验证消息,然而在dropdown没有显示.但我可以使用向上/向下箭头键进行导航.对此有何反馈?
关于javascript范围的jquery网站的在线文档我有问题.有代码;
(function() {
var baz = 1;
var bim = function() {
console.log( baz );
};
bar = function() {
console.log( baz );
};
})();
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并说:
console.log( baz ); // baz is not defined outside of the function
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我不明白的是,即使baz已定义,为什么console.log(baz)未定义.因为我认为范围是一样的.我错过了什么?
我在过去一个小时左右一直在谷歌搜索,但似乎无法找到解决这个问题的方法。我刚刚完成了 Codecademy 的 jQuery 课程,现在正在开发一个项目。由于某种原因,我的代码 jquery 代码将无法工作
jQuery:
$(document).ready(function(){
$("div").css("border", "3px solid red");
$(".storyblocks").mouseenter(function(){
$(this).animate({
height: "+= 20px"
width: "+= 20px"
});
});
$(".storyblocks").mouseleave(function(){
$(this).animate({
height: "-= 20px"
width: "-= 20px"
});
});
});
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HTML:
<!DOCTYPE html>
<html>
<head>
<title>Project Website</title>
<link type = "text/css" rel = "stylesheet" href = "stylesheet.css"/>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script type="text/javascript" src="script.js"></script>
</head>
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我添加了$("div").css("border", "3px solid red");检查 div 是否有红色边框,但到目前为止还没有运气。有人说我不需要 $(document).ready,但我不明白为什么不需要。
请帮忙?
我想设计类似下面的东西
<ul class="top">
<li><a href="#">Menu1</a></li>
<li>
<a href="#">Menu2</a>
<ul class="sub">
<li><a href="#">SubMenu1</a></li>
<li>
<a href="#">SubMenu2</a>
<ul class="subsub">
<li><a href="#">SubSubMenu1</a></li>
<li><a href="#">SubSubMenu2</a></li>
</ul>
</li>
<li><a href="#">SubMenu3</a></li>
</ul>
</li>
<li><a href="#">Menu3</a></li>
</ul>
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我的想法是,如果Node有子节点,那么子菜单将打开.因此,在这种情况下,如果用户在Menu2上悬停,则会出现SubMenu1,SubMenu2和SubMenu3,如果用户在SubMenu2上盘旋,则会出现SubSubMenu1,SubSubMenu2.
我现在有以下jQuery:
$(document).ready(function () {
$("ul.top li").hover(function () { //When trigger is hovered...
if ($("ul.top li").hasClass("sub")) {
$(this).parent().find("ul.sub").slideDown('fast').show();
$(this).parent().hover(function () {}, function () {
$(this).parent().find("ul.sub").slideUp('slow');
});
}
});
});
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但是当我将鼠标悬停在Menu1上时,菜单2的子菜单仍然处于打开状态.
任何帮助将非常感谢!
JavaScript string.indexOf()和string.lastIndexOf()JavaScript 之间的区别是什么?
var temp = state.indexOf("tmp");
var temp = state.lastIndexOf("tmp");
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