C# XML StringWriter为空

我在

XMLDocument

中有一些XML，我想把它放到

StringWriter

中，但它总是变为空（？）。我试着用debug检查变量，但我仍然不知道发生了什么

以下是我所拥有的：

        XmlDocument xmlInput = new XmlDocument();
        /* after this executes, xmlInput has lots of data in it */  
        xmlInput.LoadXml(...); 

        XslCompiledTransform transform = new XslCompiledTransform();
        /* I'm pretty sure Template.xslt is being found and loaded correctly */
        transform.Load(Server.MapPath("/Files/Template.xslt")); 

        using (System.IO.StringWriter sb = new System.IO.StringWriter())
        {
            XmlWriterSettings xSettings = new XmlWriterSettings();
            xSettings.ConformanceLevel = ConformanceLevel.Fragment;
            xSettings.Encoding = Encoding.UTF8;
            /* PROBLEM: After this line, StringWriter sb is {} */
            using (XmlWriter xWriter = XmlWriter.Create(sb, xSettings))
            {
                transform.Transform(xmlInput, xWriter);
            }

            /* xmlText is empty string "" after this line */
            String xmlText = sb.ToString();

            /* ... does more stuff ... */
        }

我能得到一些帮助吗？我真的不知道从这里到哪里去让它工作

编辑：更多调查：

        using (var stringWriter = new StringWriter())
        {
            using (var xmlTextWriter = XmlWriter.Create(stringWriter))
            {
                /* Prints lots of data to the screen */
                Response.Write(xmlInput.InnerXml);

                xmlInput.WriteTo(xmlTextWriter);
                /* Doesn't print anything to the screen */
                Response.Write(stringWriter.GetStringBuilder().ToString() );
            }
        }

但是，法拉盛起了作用

                xmlInput.WriteTo(xmlTextWriter);
                xmlTextWriter.Flush();
                /* prints lots of data */
                Response.Write( stringWriter.GetStringBuilder().ToString() );

---

事实证明，我试图应用的XSLT文件要求将XML包装在某个元素中

---

但是

flush（）

技巧帮了大忙

调用

WriteTo

后调用

xmlTextWriter.Flush（）

。当你说“什么都没显示”时，你的意思是调用

WriteTo

清除了一切吗？或者只是当你调用

WriteTo

时，它没有写其他东西？