使用Delphi7 TClientDataSet：是否可以将其保存为缩进格式的XML内容 [英] Using Delphi7 TClientDataSet: is it possible to have it save it's XML contents in an indented format

问题描述

我正在使用Delphi7 ClientDataSet读取和写入我的一些数据的xml文件。

I am using Delphi7 ClientDataSet to read and write xml files for some of my data.

Howerver，当我想在程序外浏览（双击xml在Windows资源管理器中）我得到'在文本内容中找到一个无效的字符。处理资源时出错 - 即使数据在Delphi内读取和写入也不错。

Howerver, when I want to browse this outside the program (double clicking the xml in Windows Explorer) I get the 'An invalid character was found in text content. Error processing resource' - even although the data reads and writes fine from within Delphi.

有没有办法强制TClientDataSet以缩进的方式写入内容一行？

Is there a way to force TClientDataSet to write it's contents in an indented way in stead in one line ?

这样我就可以轻松地将其打开到一个文本编辑器中，找出什么角色将触发上述错误。

That way I could easily open it into a text editor and find what character will trigger the above error.

无论如何，我发现，使用CR / LF和缩进的XML文件可以更清晰。

Anyway: I find it much more clearer for an XML file to be written with CR/LF and indents anyway.

提前Thx。

推荐答案

这是因为正确的编码（如<？xml version =1.0encoding =UTF-8 ？> ）没有在您的输出文件中指定，但它包含一些具有不兼容编码的字符。

It's because the proper encoding (like <?xml version="1.0" encoding="UTF-8"?>) has not be specified in your output file, yet it contains some characters with an incompatible encoding.

As RRUZ提到的，将 TDataPacketFormat 显式指定为 dfXMLUTF8 在编写文件时肯定会解决无效字符错误，因为它将首先编写编码标签：

<？xml version =1.0 encoding =UTF-8standalone =yes？> < DATAPACKET Version =2.0> [...]

您还可以在已存在的文件的文件开头手动添加编码。

As RRUZ mentioned, specifying explicitly the TDataPacketFormat as dfXMLUTF8 when writing the file will most certainly solve the 'Invalid Character' error, as it will write the encoding tag first:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?> <DATAPACKET Version="2.0">[...]
You can also add the encoding manually at the beginning of the file for already existing files.

对于可读格式化，一些读者可以读取原始的一行内容，并为您进行格式化（像FireFox或Internet Exporer这样的浏览器，以及XML编辑器，如 XMLNotePad ）

As for the readable formatting, some readers can read the raw one-liner and do the formatting for you (browsers like FireFox or Internet Exporer, and XML editors like XMLNotePad)

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