在DataTable.WriteXML中包含XML声明

Question

我需要将DataTable转换为XML字符串 我使用以下内容转换它：

  StringWriter sw = new StringWriter();
  tblXml.WriteXml(sw, XmlWriteMode.WriteSchema);
  string result = sw.ToString();

我正在获取XML字符串，但声明部分未来。

<?xml version="1.0" encoding="utf-8"?>

如何加入？

Answer 1

使用XmlTextWriter和WriteStartDocument()。

XmlTextWriter xmlWriter = new XmlTextWriter(outputStream, Encoding.UTF8);
xmlWriter.WriteStartDocument();
tblXml.WriteXml(xmlWriter);
string result = outputStream.ToString();