If a file is selected, then run the custom function; otherwise, do nothing.
如果选择了文件，则运行定制函数；否则，不进行任何操作。
If needed, you could supply your own custom masking function.
如果需要，您可以提供自己的自定义屏蔽功能。
We can use the default Function Selector for data binding invocation or implement a custom Function Selector.
我们可以使用缺省函数选择器进行数据绑定调用，或实现自定义函数选择器。
The sample custom function accesses the file information and displays the results in the form.
示例定制函数将访问文件信息并在表单中显示结果。
You can create custom function selectors should you want to use information in other parts of the message to determine which operation to invoke.
如果希望使用消息的其他部分的信息来确定调用的操作，则可以创建自定义函数选择器。
There is one slightly more complicated example which uses a custom function to generate the completions.
这里有个略微复杂些的示例，它使用定制函数来生成该完成。
Typically the billing system provides custom management function.
计费系统通常提供定制的管理功能。
After you embed the custom function, you can use of it inside the form.
嵌入了定制函数后，可以在表单内部使用它。
When the function is invoked, a custom dispatch function is evaluated with the function's arguments.
在函数被调用时，使用该函数的参数对一个自定义的分派函数求值。
Appendix B shows sample code for a custom Function Selector.
附录B显示了一个自定义函数选择器的示例代码。
Implementing a custom data binding and custom function selector gives you the freedom to add data transformation capabilities to adapters.
通过实现自定义数据绑定和自定义函数选择器，可以自由地向适配器添加数据转换功能。
Declare a unique identification number for each custom function that you will create with the FCI.
为fci所创建的每一个定制函数声明惟一的识别号。
This method is called whenever a custom function needs to be executed.
只要需要执行定制函数，就调用该方法。
If needed, implement a custom Function Selector.
如果需要，请实现一个自定义函数选择器。
Hence to invoke custom interface methods, the custom function selector is required.
由于要调用自定义接口方法，因此需要使用自定义函数选择器。
To not lose the state information for U.S. accounts, define a custom function that returns a valid state value based on the country.
为了不丢失美国账户的州信息，定义一个自定义的方法，基于国家返回一个有效的州值。
This call isn't part of the standard XSLT function set — it's a custom function that I define in Listing 4.
调用的不是标准xslt函数，而是清单4中所示的自定义函数。
Using the custom function inside the form
使用表单内部的定制函数
This prefix distinguishes this custom function from the standard functions available through XSLT such as number(), string(), and contains().
这个前缀是这个自定义函数与一些XSLT的标准函数的区别所在，如number()、string()和contains()。
Creating the evaluate method that will contain your custom function.
创建包含定制函数的evaluate方法。
In this example, let's create a Browse button that allows users to search for files on their computer and triggers the custom function. To do this, follow these steps.
在本例中，将创建Browse按钮，允许用户搜索用户计算机上的文件并触发定制函数。
Because a FunctionCall class can contain more than one custom function, you should define a unique identification number for each custom function.
因为functioncall类可以包含一个以上的定制函数，所以应当为每个定制函数定义惟一的识别号。
You can configure the HTTP binding with a predefined or custom function selector and data binding. The binding comes with the following two predefined function selectors.
您可以使用预先定义的或自定义的函数选择器和数据绑定配置HTTP绑定。
First, you'll define a simple custom function and test it, as well. Open the main.lisp.
首先，还是定义并测试一个简单的自定义函数。
When a custom function is called from a Workplace Forms application, the Forms Library retrieves its package and function name.
当从WorkplaceForms应用程序调用定制函数时，FormsLibrary将检索它的包及函数名称。
This method contains your custom function and is also described in further detail later.
该方法包含定制函数，稍后将进一步对它进行详述。
Registering your custom function.
注册定制函数。
Defining a unique ID for your custom function.
为定制函数定义惟一的ID。
This method contains your custom function and is described in further detail later in this article.
该方法包含定制函数，本文稍后将进一步进行详述。
Because your custom function is used to access file information on the local system, you cannot embed it in an XFDL form.
由于定制函数用于访问本地系统上的文件信息，因此不能将其嵌入XFDL表单。
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