灯角

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灯角 2024-12-11 16:13:26

您可以更改 id="t" 或将 #TextArea 更改为 #t 以获取 html 标记中的文本区域。

但我不知道你正在使用什么插件或者它想要什么。

Either you change your id="t" or you change #TextArea to #t to get the textarea you have in your html markup.

But I have no idea what plugin that you are using or what it want.

.getSelection()

灯角 2024-12-11 13:39:01

您需要发出 JSONP 请求来执行跨域 AJAX 请求,您可以通过附加

callback=?

到您发送请求的 URL 来完成此操作

You need to make a JSONP request to perform a cross domain AJAX request, you can do this by appending

callback=?

To the URL you send the request to

如何对另一个域进行ajax调用?

灯角 2024-12-11 05:11:51

我会用类似的东西来做到这一点:

spinner1.setOnItemSelectedListener(new OnItemSelectedListener() 
{
    @Override
    public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) 
    {
        SpinnerAdapter adapter = ...create or load the second adapter based on selected item...
        spinner2.setAdapter (adapter);
        spinner3.setAdapter (..create empty adapter...);
    }

    @Override
    public void onNothingSelected(AdapterView<?> parentView) 
    {
        spinner2.setAdapter (..create empty adapter...);
        spinner3.setAdapter (..create empty adapter...);
    }
});

spinner2.setOnItemSelectedListener(new OnItemSelectedListener() 
{
    @Override
    public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) 
    {
        SpinnerAdapter adapter = ...create or load the third adapter based on selected item...
        spinner3.setAdapter (adapter);
    }

    @Override
    public void onNothingSelected(AdapterView<?> parentView) 
    {
        spinner3.setAdapter (..create empty adapter...);
    }
});

I would have done this with something like that:

spinner1.setOnItemSelectedListener(new OnItemSelectedListener() 
{
    @Override
    public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) 
    {
        SpinnerAdapter adapter = ...create or load the second adapter based on selected item...
        spinner2.setAdapter (adapter);
        spinner3.setAdapter (..create empty adapter...);
    }

    @Override
    public void onNothingSelected(AdapterView<?> parentView) 
    {
        spinner2.setAdapter (..create empty adapter...);
        spinner3.setAdapter (..create empty adapter...);
    }
});

spinner2.setOnItemSelectedListener(new OnItemSelectedListener() 
{
    @Override
    public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) 
    {
        SpinnerAdapter adapter = ...create or load the third adapter based on selected item...
        spinner3.setAdapter (adapter);
    }

    @Override
    public void onNothingSelected(AdapterView<?> parentView) 
    {
        spinner3.setAdapter (..create empty adapter...);
    }
});

有关旋转器的提示

灯角 2024-12-10 19:18:52

在 VS 中,转到“工具”->“选项”,然后选择“文本编辑器”->“C#”->“格式”->“常规”。至少取消选中此页面上的前两个复选框。这将阻止 VS 自动格式化你的代码。但是,无法仅对 LINQ 查询禁用自动格式设置。

In VS, go to Tools->Options, then Text Editor->C#->Formatting->General. Uncheck at least the first two checkboxes on this page. That will prevent VS from automatically formatting your code. However, there is no way to disable autoformat only for LINQ queries.

Visual Studio 中的 Linq 查询格式

灯角 2024-12-10 16:49:21

上面的查询将显示重复的值。一旦您将其提供给业务用户,他们的下一个问题将是发生了什么?这些是怎么到那里的?重复项有模式吗?通常更能提供信息的是查看包含这些值的整行,以帮助确定为什么存在重复项。

-- this query finds all the values in T that
-- exist in the derived table D where D is the list of
-- all the values in columnWithDuplicates that occur more than once
SELECT DISTINCT
    T.* 
FROM
    myTable T 
    INNER JOIN 
    (
        -- this identifies the duplicated values
        -- courtesy of Brian Roach
        SELECT 
            columnWithDuplicates
        ,   count(*) AS rowCount
        FROM 
            myTable 
        GROUP BY 
            columnWithDuplicates 
        HAVING 
            (count(*) > 1)
    ) D 
        ON D.columnWithDuplicates = T.columnWithDuplicates

The above query will show the duplicated values. And once you provide that to a business user, their next question will be what happened? How did these get there? Is there a pattern to the duplicates? What's often more informative is to see the whole rows containing those values to help determine why there are duplicates.

-- this query finds all the values in T that
-- exist in the derived table D where D is the list of
-- all the values in columnWithDuplicates that occur more than once
SELECT DISTINCT
    T.* 
FROM
    myTable T 
    INNER JOIN 
    (
        -- this identifies the duplicated values
        -- courtesy of Brian Roach
        SELECT 
            columnWithDuplicates
        ,   count(*) AS rowCount
        FROM 
            myTable 
        GROUP BY 
            columnWithDuplicates 
        HAVING 
            (count(*) > 1)
    ) D 
        ON D.columnWithDuplicates = T.columnWithDuplicates

如何从一张表中只获取重复的数据?

灯角 2024-12-10 13:46:11

尝试更改为这个。您意外调用了 click

$(function() {
   $('#saveBtn').click(function (){
     save()});
});

try changing to this. You are invoking click accidentally

$(function() {
   $('#saveBtn').click(function (){
     save()});
});

点击函数在页面加载时触发?

灯角 2024-12-10 11:30:27

传统上,在编程语言中,参数定义函数声明处的输入。参数是调用函数时提供的值。参数值映射到函数参数。您可以在维基百科上阅读更多相关内容。

Traditionally in programming languages, parameter defines the inputs to a function where the function is declared. Arguments are the values supplied when calling the function. The argument values map to the function parameters. You can read more about this on Wikipedia.

powershell中参数和参数有什么区别?

灯角 2024-12-10 11:10:38

简短回答:不,您无法控制来电

Short Answer : No you cannot control on Incoming calls

通过 iPhone xcode 中的应用程序处理来电

灯角 2024-12-10 05:01:33

处理日期时,如果您提供自己的格式字符串,则 NLS 设置不相关:

WHERE arrival=TO_DATE('2011-09-05', 'yyyy-mm-dd')

我的猜测是您依赖于自动类型杂耍,即,您提供一个字符串并让 Oracle 根据需要将其转换为日期:

WHERE arrival='05/09/2011'

在这种情况下,Oracle 使用 NLS 设置中指定的默认格式。

更新:顺便说一句,ORA-01858代码意味着:

在需要数字的地方发现了非数字字符

When dealing with dates, NLS settings are not relevant if you provide your own format string:

WHERE arrival=TO_DATE('2011-09-05', 'yyyy-mm-dd')

My guess is that you are relying on automatic type juggling, i.e., you are providing a string and letting Oracle cast it to date as required:

WHERE arrival='05/09/2011'

In that case, Oracle uses the default format as specified in your NLS settings.

Update: BTW, the ORA-01858 code means:

a non-numeric character found where a digit was expected

Oracle 日期和 NLS 设置

灯角 2024-12-10 04:57:52

为什么不使用 UITextFieldDelegate 协议?用法:

aTextField.delegate = self;

(...)

- (void)textFieldDidEndEditing:(UITextField *)textField {
    NSLog(@"Editing did End");
    // SAVE PROCEDURE
}

阅读文档更多信息。

Why don't you use UITextFieldDelegate protocol? Usage:

aTextField.delegate = self;

(...)

- (void)textFieldDidEndEditing:(UITextField *)textField {
    NSLog(@"Editing did End");
    // SAVE PROCEDURE
}

Read the documentation for more info.

UIPopoverController内存问题

灯角 2024-12-10 03:18:03

不存在“矢量的标准位置”。在 2D 或 3D 中。

当然,有一个通用的数学约定,即角度的 X、Y 方向是 (cos(角度),sin(角度))。这意味着如果角度为 0,则矢量指向 X 轴正方向。但这距离“矢量的标准位置”还很远。

虽然四元数在某些数学运算中看起来像 3D 角度,但它们并不是角度。四元数(就图形而言)表示一个空间相对于另一个空间的方向。

There is no "standard position of a vector." In 2D or 3D.

There is of course a general mathematical convention that the X,Y direction of an angle is (cos(angle), sin(angle)). Which means that if the angle is 0, then the vector points down the positive X axis. But that's far from a "standard position of a vector."

While quaternions can seem like a 3D angle in some math operations, they are not angles. Quaternions (in terms of graphics) represent the orientation of a space, relative to another space.

四元数的标准位置?

灯角 2024-12-10 00:49:19

远程服务器发送一个包含资源 mime 类型的 Content-Type 标头。例如:

Content-Type: image/png

因此您可以检查此标头的值并为您的文件选择正确的扩展名。例如:

WebRequest request = WebRequest.Create("http://0.gravatar.com/avatar/a5a5ed70fa7c651aa5ec9ca8de57a4b8?s=60&d=identicon&r=G");
using (WebResponse response = request.GetResponse())
using (Stream stream = response.GetResponseStream())
{
    string contentType = response.ContentType;
    // TODO: examine the content type and decide how to name your file
    string filename = "test.jpg";

    // Download the file
    using (Stream file = File.OpenWrite(filename))
    {
        // Remark: if the file is very big read it in chunks
        // to avoid loading it into memory
        byte[] buffer = new byte[response.ContentLength];
        stream.Read(buffer, 0, buffer.Length);
        file.Write(buffer, 0, buffer.Length);
    }
}

The remote server sends a Content-Type header containing the mime type of the resource. For example:

Content-Type: image/png

So you can examine the value of this header and pick the proper extension for your file. For example:

WebRequest request = WebRequest.Create("http://0.gravatar.com/avatar/a5a5ed70fa7c651aa5ec9ca8de57a4b8?s=60&d=identicon&r=G");
using (WebResponse response = request.GetResponse())
using (Stream stream = response.GetResponseStream())
{
    string contentType = response.ContentType;
    // TODO: examine the content type and decide how to name your file
    string filename = "test.jpg";

    // Download the file
    using (Stream file = File.OpenWrite(filename))
    {
        // Remark: if the file is very big read it in chunks
        // to avoid loading it into memory
        byte[] buffer = new byte[response.ContentLength];
        stream.Read(buffer, 0, buffer.Length);
        file.Write(buffer, 0, buffer.Length);
    }
}

如何从远程 url 获取有效的文件名和扩展名来保存它?

灯角 2024-12-09 23:58:50

尝试浮动li。或者,您可以删除标记中的空格(

  • 之间)。当您使用 display:inline-block 时会发生这种情况。
  • Try floating the lis. Or you can get rid of the spaces in your markup (between <li> and <li>). This happens when you use display:inline-block.

    为什么这些选项卡之间有空格?

    灯角 2024-12-09 23:21:54

    我也遇到了同样的问题。
    不知道这是否是最好的解决方案,可能不是,但它对我有用。

    问题是 Latlng 未被识别。所以我重新创建了数组。

    var lats = [];
    var lat_size = steps[step].lat_lngs.length;
    
    for (var t=0; t <lat_size; t++) {
    
    lats.push(new google.maps.LatLng(steps[step].lat_lngs[t].lat(), steps[step].lat_lngs[t].lng()))
              }
    var polylineOptions = {
    map: map,
    path: lats
     }
    
    new google.maps.Polyline(polylineOptions);
    

    I was having the same problem.
    Don't know if its the best solution, probably not, but it worked for me.

    The problem was that the Latlng weren't being recognized. So I recreated the array.

    var lats = [];
    var lat_size = steps[step].lat_lngs.length;
    
    for (var t=0; t <lat_size; t++) {
    
    lats.push(new google.maps.LatLng(steps[step].lat_lngs[t].lat(), steps[step].lat_lngs[t].lng()))
              }
    var polylineOptions = {
    map: map,
    path: lats
     }
    
    new google.maps.Polyline(polylineOptions);
    

    谷歌地图 v3:绘制折线时构造函数参数 0 的值无效

    灯角 2024-12-09 12:48:35

    尝试以下操作,在命令提示符中

    adb devices
    

    查看是否显示连接的设备列表(

    如果没有),然后确保在测试设备上启用了调试
    要启用调试,请转到

    Phone Settings --> Applications --> Development --> Enable USB Debugging
    

    选中标记,然后尝试 adb devices

    Try the following, in your command prompt

    adb devices
    

    see if it shows the list of devices attached

    if not , then make sure you have debugging enabled on your test device
    To enable debugging go to

    Phone Settings --> Applications --> Development --> Enable USB Debugging
    

    Check mark it , the try adb devices

    为什么我在 Eclipse 的 DDMS 透视模式下看不到我的 Android 设备?

    更多

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