c# - XML StringWriter 为空

Question

我在 a 中有一些 XML，XMLDocument我想把它放到 aStringWriter中，但它总是变成空的（？）。我试过用调试检查变量，但我仍然不知道发生了什么。

这是我所拥有的：

        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 ... */
        }

我可以帮忙吗？我真的不知道从这里去哪里才能让它工作。

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，冲洗就可以了

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

Answer 1

事实证明，我试图应用的 XSLT 文件需要将 XML 包装在某个元素中。

但是这个flush()技巧帮助很大。