走过海棠暮

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走过海棠暮 2024-11-07 04:42:32

唯一的方法是for-each,在这里使用它就可以了。

DataTable t = new DataTable();
var fwdRowGroups = t.AsEnumerable().GroupBy(row => row.Field<object>("AcctId"));

DataTable g = new DataTable();
foreach (var row in fwdRowGroups)
{
    g.Rows.Add(row);
}

另请注意删除多余的 ToList()。你需要它做什么?

并在 DataRow.Field() 中使用更具体的类型,它是为类型安全操作而创建的。否则仅使用 row["AcctId]

The only way is for-each and it's ok to use it here.

DataTable t = new DataTable();
var fwdRowGroups = t.AsEnumerable().GroupBy(row => row.Field<object>("AcctId"));

DataTable g = new DataTable();
foreach (var row in fwdRowGroups)
{
    g.Rows.Add(row);
}

Also note the removal of excess ToList(). What for do you need it?

And use more specific type in DataRow.Field<T>(), it's created for type-safe operations. Otherwise use just row["AcctId]

将 GroupBy 行添加到数据表中

走过海棠暮 2024-11-07 03:24:20

在 IE 中,您可以使用 security="restricted" 属性。它不会执行您想要的操作(完全禁用 javascript),但应强制 IFRAME 在不同区域中运行并阻止它访问您的页面。

HTML 5 沙箱 属性,在实施后,也可能接近您正在寻找的内容。特别是 允许脚本。现在您只需要在大多数用户的浏览器中实现它即可;)

In IE you can use the security="restricted" attribute. It doesn't do what you want (disable javascript altogether) but should force the IFRAME to run in a differnent zone and prevent it from accessing your page.

The HTML 5 sandbox attribute, when implemented, may also be close to what you are looking for. In particular allow-scripts. Now you just need it to be implemented in a majority of user's browsers ;)

使用 javascript 更改 iframe 内的 onload 值

走过海棠暮 2024-11-07 02:11:24

好吧,罗宾汉,

我对您的代码的理解是,当用户按下退出按钮时,它应该离开应用程序,当您重新启动应用程序时,它应该从应用程序离开的上一个活动恢复。

实际上,当我们按下Home按钮时,这是相同的行为。因此,您只需要创建在退出单击时按下主页按钮的事件。

=========================================

好的,我不知道以下解决方案是否好但。如果您想终止整个应用程序并从家庭活动中恢复。您可以将 launchMode 放入 menifeast 文件中的 sigleinstance 中以进行其他活动。

或者

您可以在按下退出按钮递归退出活动时设置静态标志。

Well robin hood,

my understanding to your code is that, when user press Exit button it should leave app and when you restart app it should resume from previous activity where application left.

Actually it is same behavior when we press Home button. So you just need to create event home button pressed on exit click.

=======================================

Ok, I don't know following solution is good but. If you want to terminate entire app and resume from home activity. You can put launchMode to sigleinstance in menifeast file for other activities.

or

You can set a static flag when exit button pressed recursively exit the activities.

干净地退出应用程序

走过海棠暮 2024-11-06 21:51:22

服务器端总是更好,因为它会立即工作,即使 JavaScript 被关闭。

你展示的方法很好。

如果这是要全局隐藏某种类型的元素,另一种选择是为 body 标记指定一个特定的类名:(

if(ElementIsToBeShown) //This is java server side statement   
 {
   <body class="hide_elements">
 }
 else
 {
   <body>
 }

这是伪代码;你知道我的意思)

并让 CSS 包含该规则如果主体具有该类,则隐藏该类的所有元素 .Options

body.hide_elements .Options { display: none }

这很好,因为您可以将其硬编码到 CSS 中,并且只需要更改主体的类。但正如所说,你展示的方法也很好。

Server side is always better, because it'll work immediately, and even if JavaScript is turned off.

The method you show is fine.

If this is to globally hide a certain type of elements, another option is giving the body tag a specific classname:

if(ElementIsToBeShown) //This is java server side statement   
 {
   <body class="hide_elements">
 }
 else
 {
   <body>
 }

(this is pseudo-code; you know what I mean)

and having the CSS contain the rule that if the body has that class, hide all elements of the class .Options:

body.hide_elements .Options { display: none }

this is nice because you can hard-code this into your CSS, and need to alter the body's class only. But as said, the method you show is fine as well.

JQuery 或条件 CSS?

走过海棠暮 2024-11-06 20:19:49

尝试运行此命令:

$ pypm files py2app | grep py2applet
~/Library/Python/2.7/bin/py2applet 
~/Library/Python/2.7/lib/python/site-packages/py2app/script_py2applet.py 
$

那么,您有 ~/Library/Python/2.7/bin/py2applet 吗?

您还可以将 ~/Library/Python/2.7/bin/ 添加到您的 $PATH (在 ~/.profile 中) - PyPM 会尝试这样做第一次运行时要做的事情。

Try running this command:

$ pypm files py2app | grep py2applet
~/Library/Python/2.7/bin/py2applet 
~/Library/Python/2.7/lib/python/site-packages/py2app/script_py2applet.py 
$

So, do you have ~/Library/Python/2.7/bin/py2applet?

You can also add ~/Library/Python/2.7/bin/ to your $PATH (in ~/.profile) - which PyPM tries to do on first run.

在 os x 上使用 ActivePython 执行 py2app 的第一步

走过海棠暮 2024-11-06 18:59:47

Acunetix 提供了多个站点来演示各种技术中的漏洞:

http://testphp.vulnweb.com/

http://testaspnet.vulnweb.com

Acunetix provides several sites that demonstrate vulnerabilities in various technologies:

http://testphp.vulnweb.com/

http://testaspnet.vulnweb.com

黑客训练模拟器

走过海棠暮 2024-11-06 18:01:41

它只是一个普通函数,当您将函数调用语法应用于用户定义类型时,就会调用该函数。

因此它具有常规成员函数的所有限制和功能。它可以是一个模板,它可以接受任意数量的参数,它需要一个返回类型,它可以是 const 等。

It's just a normal function that gets called when you apply function-call syntax to a user-defined type.

So it has all the restrictions and features of a regular member function. It can be a template, it can take as many parameters as you want, it needs a return type, it can be const, etc.

运算符()的含义?

走过海棠暮 2024-11-06 17:43:47

如果您希望用户将视频包含在文本中,请在用户干预期间将链接存储在 HTML 中,并按原样从页面上的数据库中输出。然后,您的用户可以编辑他们的帖子,决定是否将视频放置在之前、之后、中间或根本不放置,并且可以更改 HTML 中的详细信息。

如果您以某种标准方式显示视频,请将视频链接与帖子一起存储在单独的数据库列中,并动态生成 HTML。您可以在尺寸、颜色等列中包含数据,但灵活性始终仅限于您决定存储的内容:如果有颜色的数据库列,那么您将让用户选择颜色,否则.. 。 不是。

因此,最灵活的方法是让用户输入 HTML。如果您认为他们无法胜任,或者您想限制他们对可以格式化的内容的选择,您可以使用 stackoverflow、wikipedia 等中提供的 java(script) 富文本编辑器,并且有多种可能性通过按钮以某些选定的方式编辑文本。您还可以将帖子存储在 XML 中,例如在选定的 HTML5 子集中(在特定容器中有效的任何内容......),并在演示时对其进行转换。

If you want the user to include his video within his text, store the link in HTML within that user's intervention, and output it as is from the database on the page. Then your users can edit their posts to decide whether to place the video before, after, in the middle or not at all, and can change the details in HTML.

If you are showing the video in some standard way, then store the video link along with the post in a separate database column, and generate the HTML on the fly. You can have data in columns for size, colour etc..., but the flexibility will always be limited to what you decide to store: if there is a database coloumn for colour then you are letting the user choose the colour, otherwise... not.

So, the most flexible is to let your users type HTML. If you think they aren't up to it, or you want to limit their choices of what they can format, you could use a java(script) rich text editor of the type that you have in stackoverflow, wikipedia etc., with possibilities to edit text in certain chosen ways via buttons. You could also store the post in XML, say in a chosen subset of HTML5 (anything that is valid in a certain container...), and transform it at presentation time.

存储附加到用户贡献内容的 YouTube 内容的最佳方法是什么?

走过海棠暮 2024-11-06 17:24:49
foreach (var pair in dict)
    for (int i=0;i<pair.Value;i++)
        list.Add((double)pair.Key);
foreach (var pair in dict)
    for (int i=0;i<pair.Value;i++)
        list.Add((double)pair.Key);

将字典吹出到列表中

走过海棠暮 2024-11-06 17:10:22

您还可以使用 c++0x 或 boost 中的函数。
那将是

boost::function<int(int)>

然后使用bind 将您的函数绑定到此类型。

看看这里这里

好的,这里是一个例子。我希望这有帮助。

int MyFunc1(int i)
{
    std::cout << "MyFunc1: " << i << std::endl;
    return i;
}

int MyFunc2(int i)
{
    std::cout << "MyFunc2: " << i << std::endl;
    return i;
}

int main(int /*argc*/, char** /*argv*/)
{
    typedef boost::function<int(int)> Function_t;

    Function_t myFunc1 = boost::bind(&MyFunc1, _1);
    Function_t myFunc2 = boost::bind(&MyFunc2, _1);

    myFunc1(5);
    myFunc2(6);
}

You could also use function either from the c++0x or from boost.
That would be

boost::function<int(int)>

and then use bind to bind your function to this type.

Have a look here and here

Ok here would be a example. I hope that helps.

int MyFunc1(int i)
{
    std::cout << "MyFunc1: " << i << std::endl;
    return i;
}

int MyFunc2(int i)
{
    std::cout << "MyFunc2: " << i << std::endl;
    return i;
}

int main(int /*argc*/, char** /*argv*/)
{
    typedef boost::function<int(int)> Function_t;

    Function_t myFunc1 = boost::bind(&MyFunc1, _1);
    Function_t myFunc2 = boost::bind(&MyFunc2, _1);

    myFunc1(5);
    myFunc2(6);
}

如何将函数存储到变量中?

走过海棠暮 2024-11-06 16:34:07

您可以使用 [OR] 提供多个可选的重写条件:

RewriteCond %{HTTP_HOST} ^www.companyname1.com$ [OR]
RewriteCond %{HTTP_HOST} ^companyname1.com$
RewriteRule ^(.*)$ http://www.companyname2.com/$1 [R=301,L]

这应该可以解决问题。如果 www 存在,则第一个重写条件触发;如果 www 被遗忘,则第二个重写条件触发。

You can supply several optional Rewrite-Conditions with [OR]:

RewriteCond %{HTTP_HOST} ^www.companyname1.com$ [OR]
RewriteCond %{HTTP_HOST} ^companyname1.com$
RewriteRule ^(.*)$ http://www.companyname2.com/$1 [R=301,L]

This should do the trick. The first Rewrite-Condition fires, if www is present, the second one fires, if www has been forgotten.

通过 Apache 重写规则永久重定向远备用域,而不影响目标域的非 www

走过海棠暮 2024-11-05 23:51:42

我认为您可以在 Activity 子类(例如 MyActivity)中实现所有功能,并使 MyListActivity 类成为 的子类MyActivity 类。

另一种方法是创建一个辅助类,其中包含静态方法中的所有功能,并以 Activity 对象作为第一个参数。在这种情况下,您不需要创建 MyActivityMyListActivity 类,但需要在每个 Activity 子类中调用辅助类的方法你想继承这些功能。

I think you can implement all the features in an Activity subclass (e.g., MyActivity) and make the MyListActivity class a subclass of the MyActivity class.

Other approach is to make a helper class which contains all the features in static methods with an Activity object as the first argument. In this case you don't need to create MyActivity or MyListActivity classes, but you need to call methods of the helper class in every Activity subclass you want to inherit these features.

android:自己的类扩展活动和/或列表活动

走过海棠暮 2024-11-05 19:37:30

event 作为参数传递给回调,并检查 IE 的 window.event

<html>
<head>
<script>
function keyUpExample(e) {
    e = e || window.event;
    alert('on' + e.type + ' event fired by ' + '"' + e.srcElement.id + '" ' + ' ' +        e.which) 
} 
</script>
</head>
<body id="myBody" onkeyup="keyUpExample()">
    Trying keyUp event: Press any key...
</body>
</html>

演示

element.onkeyup 参考

但是,

您最好使用一个可以消除所有丑陋的跨浏览器不一致的库。任您选择:jQuery、Prototype、YUI、Dojo、MooTools、RightJS...

Pass event as an argument to the callback, and check for window.event for IE.

<html>
<head>
<script>
function keyUpExample(e) {
    e = e || window.event;
    alert('on' + e.type + ' event fired by ' + '"' + e.srcElement.id + '" ' + ' ' +        e.which) 
} 
</script>
</head>
<body id="myBody" onkeyup="keyUpExample()">
    Trying keyUp event: Press any key...
</body>
</html>

Demo

element.onkeyup reference

However

You're better off using a library which smooths out all the ugly cross-browser inconsistencies. Take your pick: jQuery, Prototype, YUI, Dojo, MooTools, RightJS...

onKeyUp 在 IE 中不会触发 ESC

走过海棠暮 2024-11-05 17:44:00

您在整个表单中嵌套了额外的表单标签。您只需要一个表单标签。所有输入都在其中。

<form name="addaserver" method="post" action="addaserver.php">
    <p>Server Name</p>
    <input name="servername" type="text" />

    <p>Description<</p>
    <input name="description" type="text" />

    <p>Server IP</p>
    <input name="ip" type="text" />

    <p>Tags (ex: "pvp, economy, fun")</p>
    <input name="tags" type="text" />

    <input name="submitserver" type="submit" value="submit" />
</form>

You're nesting extra form tags throughout your form. You only need one form tag. All of the inputs go inside it.

<form name="addaserver" method="post" action="addaserver.php">
    <p>Server Name</p>
    <input name="servername" type="text" />

    <p>Description<</p>
    <input name="description" type="text" />

    <p>Server IP</p>
    <input name="ip" type="text" />

    <p>Tags (ex: "pvp, economy, fun")</p>
    <input name="tags" type="text" />

    <input name="submitserver" type="submit" value="submit" />
</form>

PHP/HTML 表单提交

走过海棠暮 2024-11-05 17:16:57

好的,我找到了一种将其与 Drupal 中的 CCK 集成的方法
http://batayneh.me/post/how-pull -tweet-pasting-its-url-drupal-cck

Ok, i figured a way out to integrate this with CCK in Drupal
http://batayneh.me/post/how-pull-tweet-pasting-its-url-drupal-cck

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