灯角

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灯角 2024-10-26 03:47:33

您可以使用 window.onbeforeunload 来执行此操作,如下所示:

window.onbeforeunload = function() {
    return 'Are you sure you want to navigate away from this page?';
};

因此,在您的代码中,您可以将其放入 $.ajax 调用的 success 回调中。

要取消设置确认,您可以执行以下操作:

window.onbeforeunload = null;

另请参阅此答案:如何覆盖 OnBeforeUnload 对话框并将其替换为我自己的?

You can do this using window.onbeforeunload like this:

window.onbeforeunload = function() {
    return 'Are you sure you want to navigate away from this page?';
};

So in your code, you would put that inside the success callback of your $.ajax call.

To unset the confirmation, you can do this:

window.onbeforeunload = null;

Also, see this answer: How can I override the OnBeforeUnload dialog and replace it with my own?

使用 jQuery 编辑表单时确认离开页面

灯角 2024-10-26 01:56:16

要将字符串添加到您的 ContentControl 中,您需要添加

xmlns:sys="clr-namespace:System;assembly=mscorlib"

到您的 usings 中。然后添加这个

<UserControl.Resources>
        <sys:String x:Key="SingleString">Hello World</sys:String>
</UserControl.Resources>

,希望这会有所

<ContentControl Content="{Binding Source={StaticResource SingleString}}"/>

帮助。

To get a string into your ContentControl you would, add

xmlns:sys="clr-namespace:System;assembly=mscorlib"

to your usings. Then add this

<UserControl.Resources>
        <sys:String x:Key="SingleString">Hello World</sys:String>
</UserControl.Resources>

Which would allow

<ContentControl Content="{Binding Source={StaticResource SingleString}}"/>

Hope this helps.

Resource中ContentControl的内容

灯角 2024-10-26 01:43:54

您始终可以从 Java 类开始。您可以使用 @XmlElementWrapper 获取分组元素“Items”和“Values”。

笔记:
JAXB 不需要对象工厂。 JAXB 可以利用使用 @XmlRegistry 注释的类(例如 ObjectFactory)上的元数据。

You can always start from Java classes. You can use @XmlElementWrapper to get the grouping elements "Items" and "Values".

Note:
JAXB does not require the object factory. JAXB can leverage metadata on a class like ObjectFactory that is annotated with @XmlRegistry.

忽略 XML 架构中的父元素

灯角 2024-10-26 00:43:38

还值得注意的是标准 Joomla! .htaccess 文件中包含以下规则,用于根据请求中的 Authorization 标头设置 HTTP_AUTHORIZATION 环境变量:

RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]

It might also be worth noting that the standard Joomla! .htaccess file has the following rule in it to set the HTTP_AUTHORIZATION environment variable based on the Authorization header in the request:

RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]

什么是 HTTP_AUTHORIZATION 环境变量?

灯角 2024-10-25 14:50:36

从命令行:

svn up -r [revision_number]

其中 [revision_number] 是您要恢复到的修订版本。

不,您不能删除 SVN 中已存在的修订。

From the command line:

svn up -r [revision_number]

Where [revision_number] is the revision you want to revert to.

And no, you cannot delete revisions that already exist in SVN.

SVN:如何返回到之前的版本?

灯角 2024-10-25 14:39:17

问题解决了。

我使用错误的参数访问哈希。

Problem solved.

I was accessing the hash using the wrong parameters.

OmniAuth 未添加到数据库

灯角 2024-10-25 09:11:53

正如 @Chase 所建议的,combn 可以满足您的需求:

nams <- apply( combn(colnames(foo),3), 2, function(z) paste(z, collapse = ''))
cols <- combn( ncol(foo), 3)

tripleSums <- apply( cols, 2, function(z) rowSums(foo[,z]))
colnames(tripleSums) <- nams

> tripleSums
      var1var2var3 var1var2var4 var1var3var4 var2var3var4
 [1,]            3            5            5            5
 [2,]            6            8            8            8
 [3,]            7           11            9            9
 [4,]           10           14           12           12
 [5,]           11           17           13           13
 [6,]            9           10           11            6
 [7,]           10           13           12            7
 [8,]           13           16           15           10
 [9,]           14           19           16           11
[10,]           17           22           19           14

As @Chase suggested, combn gets you what you want:

nams <- apply( combn(colnames(foo),3), 2, function(z) paste(z, collapse = ''))
cols <- combn( ncol(foo), 3)

tripleSums <- apply( cols, 2, function(z) rowSums(foo[,z]))
colnames(tripleSums) <- nams

> tripleSums
      var1var2var3 var1var2var4 var1var3var4 var2var3var4
 [1,]            3            5            5            5
 [2,]            6            8            8            8
 [3,]            7           11            9            9
 [4,]           10           14           12           12
 [5,]           11           17           13           13
 [6,]            9           10           11            6
 [7,]           10           13           12            7
 [8,]           13           16           15           10
 [9,]           14           19           16           11
[10,]           17           22           19           14

独特的柱组合

灯角 2024-10-25 04:29:03

您需要提供用户记录。
假设记录分配给 @user

<%= link_to image_tag("icons/run.png"), user_profile_edit_path(@user) %>

You need to supply the user record.
Assuming the record is assigned to @user

<%= link_to image_tag("icons/run.png"), user_profile_edit_path(@user) %>

铁路线路问题

灯角 2024-10-25 01:10:09

尝试使用 jsonStr[k].title = 'new title';

Try using jsonStr[k].title = 'new title';

如何更改 JSON 字符串内的值

灯角 2024-10-24 23:13:46
<script>
    function goTo() {
        var input = get("box").value,
            frame = get("frame");

        if(input.match(/\bhttp(.)*/)) {
            frame.src = input;
        } else {
            input = "http://" + input;
            frame.src = input;
        }      
    }

    function get(id) {
        return document.getElementById(id);    
    }  
</script>

<input type="text" id="box" value="http://www.example.com" />
<button onClick="goTo();">go</button>

<iframe src="http://www.example.com" frameborder="0" id="frame" width="100%" height="90%"></iframe>

--> 示例 <--

<script>
    function goTo() {
        var input = get("box").value,
            frame = get("frame");

        if(input.match(/\bhttp(.)*/)) {
            frame.src = input;
        } else {
            input = "http://" + input;
            frame.src = input;
        }      
    }

    function get(id) {
        return document.getElementById(id);    
    }  
</script>

<input type="text" id="box" value="http://www.example.com" />
<button onClick="goTo();">go</button>

<iframe src="http://www.example.com" frameborder="0" id="frame" width="100%" height="90%"></iframe>

--> example <--

使用文本框更改 Iframe 中的 URL

灯角 2024-10-24 22:10:16

像这样的事情应该可以解决问题。

<input type="checkbox" class="divisions" value="division1" />
<input type="checkbox" class="division1_departments" value="division1_departmen1" />
<input type="checkbox" class="division1_departments" value="division1_departmen2" />
<input type="checkbox" class="divisions" value="division2" />
<input type="checkbox" class="division2_departments" value="division2_departmen1" />
<input type="checkbox" class="division2_departments" value="division2_departmen2" />
<script type="text/javascript">
    $(document).ready(function () {
        $("input.divisions:checkbox").click(function () {
            $("input." + $(this).val() + "_departments:checkbox").attr("checked", $(this).is(':checked'));
        });
    });
</script>

Something like this should do the trick.

<input type="checkbox" class="divisions" value="division1" />
<input type="checkbox" class="division1_departments" value="division1_departmen1" />
<input type="checkbox" class="division1_departments" value="division1_departmen2" />
<input type="checkbox" class="divisions" value="division2" />
<input type="checkbox" class="division2_departments" value="division2_departmen1" />
<input type="checkbox" class="division2_departments" value="division2_departmen2" />
<script type="text/javascript">
    $(document).ready(function () {
        $("input.divisions:checkbox").click(function () {
            $("input." + $(this).val() + "_departments:checkbox").attr("checked", $(this).is(':checked'));
        });
    });
</script>

在 jQuery 中,如何根据另一个复选框打开和关闭复选框的子集

灯角 2024-10-24 20:53:09

JAVA_OPTS 实际上在输出中运行吗?您可能需要实际将它们放在正在运行的命令行上,或者在其中包含 $JAVA_OPTS 。

Are JAVA_OPTS actually being run in the output? You may need to actually put them on the command line you're running, or include $JAVA_OPTS on it.

java.lang.outofmemory 异常 jvm 堆大小不足

灯角 2024-10-24 19:10:17

好吧,我会看看我能做些什么来提供帮助:/

我已经查看了进度标签的默认样式(它的 css 样式)(使用 Google Chrome 的 Inspect 元素选项),我发现以下内容(希望这有帮助) ):

1.  -webkit-appearance: progress-bar;
2.  background-attachment: scroll;
3.  background-clip: border-box;
4.  background-color: gray;
5.  background-image: none;
6.  background-origin: padding-box;
7.  border-bottom-color: black;
8.  border-bottom-style: none;
9.  border-bottom-width: 0px;
10. border-left-width: 0px;
11. border-right-width: 0px;
12. border-top-color: black;
13. border-top-style: none;
14. border-top-width: 0px;
15. display: inline-block;
16. font-family: Arial, Helvetica, Verdana, Tahoma, sans-serif;
17. font-size: 16px;
18. height: 16px;
19. line-height: 16px;
20. margin-bottom: 0px;
21. margin-left: 0px;
22. margin-right: 0px;
23. margin-top: 0px;
24. outline-color: black;
25. outline-style: none;
26. outline-width: 0px;
27. padding-bottom: 0px;
28. padding-left: 0px;
29. padding-right: 0px;
30. padding-top: 0px;
31. position: static;
32. text-align: center;
33. vertical-align: -3px;
34. width: 160px;
Styles
________________________________________

element.style {}
Matched CSS Rules
user agent stylesheet

progress {
1.  -webkit-appearance: progress-bar;
2.  display: inline-block;
3.  height: 1em;
4.  width: 10em;
5.  vertical-align: -0.2em;
6.  background-color: gray;
}

Pseudo element
user agent stylesheet

progress::-webkit-progress-bar-value {
1.  -webkit-appearance: progress-bar;
2.  background-color: green;
}

Well I'll see what I can do to help :/

I have looked at the default style (the css style of it) of the progress tag (using Google Chrome's Inspect element option) and what I found is the following (hope this helps):

1.  -webkit-appearance: progress-bar;
2.  background-attachment: scroll;
3.  background-clip: border-box;
4.  background-color: gray;
5.  background-image: none;
6.  background-origin: padding-box;
7.  border-bottom-color: black;
8.  border-bottom-style: none;
9.  border-bottom-width: 0px;
10. border-left-width: 0px;
11. border-right-width: 0px;
12. border-top-color: black;
13. border-top-style: none;
14. border-top-width: 0px;
15. display: inline-block;
16. font-family: Arial, Helvetica, Verdana, Tahoma, sans-serif;
17. font-size: 16px;
18. height: 16px;
19. line-height: 16px;
20. margin-bottom: 0px;
21. margin-left: 0px;
22. margin-right: 0px;
23. margin-top: 0px;
24. outline-color: black;
25. outline-style: none;
26. outline-width: 0px;
27. padding-bottom: 0px;
28. padding-left: 0px;
29. padding-right: 0px;
30. padding-top: 0px;
31. position: static;
32. text-align: center;
33. vertical-align: -3px;
34. width: 160px;
Styles
________________________________________

element.style {}
Matched CSS Rules
user agent stylesheet

progress {
1.  -webkit-appearance: progress-bar;
2.  display: inline-block;
3.  height: 1em;
4.  width: 10em;
5.  vertical-align: -0.2em;
6.  background-color: gray;
}

Pseudo element
user agent stylesheet

progress::-webkit-progress-bar-value {
1.  -webkit-appearance: progress-bar;
2.  background-color: green;
}

是否有可能为 html5 进度标签着色?

灯角 2024-10-24 18:48:49

基于颜色直方图的人脸检测方法与人脸方向无关。

Methods for face detection based on color histogram are independent of face orientation.

旋转人脸检测

灯角 2024-10-24 13:11:41

图片传输协议 http://en.wikipedia.org/wiki/Picture_Transfer_Protocol 是一个令人讨厌的小东西事物。到目前为止,我手中所有声称拥有适当 PTP 支持的相机都在某个地方失败了。但理论上可以使用PTP来远程控制相机,即触发快门、检索图片等。

与重新实现整个事情相比,我建议您获得一些易于使用的 PTP 库。 http://ptp.sourceforge.net 上列出了一些开源项目

There's the Picture Transfer Protocol http://en.wikipedia.org/wiki/Picture_Transfer_Protocol a nastly little thing. All the cameras I held in my hands so far, claiming they had proper PTP support failed it somewhere. But in theory one can use PTP to remote control a camera, i.e. trigger the shutter, retrieve the picture and so on.

Rater than reimplementing the whole thing I recommend you get some readily usable PTP library. There are some open source ones listed on http://ptp.sourceforge.net

如何以编程方式触发连接到 USB 的相机?

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