状态为 EndRootElement 的令牌 StartElement 将导致无效的 XML 文档答案

【问题标题】：Token StartElement in state EndRootElement would result in an invalid XML document状态为 EndRootElement 的令牌 StartElement 将导致无效的 XML 文档
【发布时间】：2012-05-25 10:01:25
【问题描述】：

我正在做一个项目，我从 c# 创建一个 power point 文档。出于某种原因，在我的一种方法上，一切都很好，但我收到了这个错误：

“处于 EndRootElement 状态的令牌 StartElement 将导致无效的 XML 文档。”

这是我的方法：

 private static void slideLayout6XML()
    {
        FileStream slideLayout6Stream = new FileStream( slideLayout6, FileMode.Create, FileAccess.Write );
        XmlWriter slideLayout6Writer = null;

        try
        {
            XmlWriterSettings contentTypesSettings = new XmlWriterSettings();
            contentTypesSettings.Indent = true;
            slideLayout6Writer = XmlWriter.Create( slideLayout6Stream, contentTypesSettings );

            slideLayout6Writer.WriteStartDocument( true );
            slideLayout6Writer.WriteStartElement( "p", "sldLayout" );
            slideLayout6Writer.WriteAttributeString( "preserve", "1" );
            slideLayout6Writer.WriteAttributeString( "type", "titleOnly" );

            slideLayout6Writer.WriteStartElement( "p", "http://schemas.openxmlformats.org/drawingml/2006/main" );
            slideLayout6Writer.WriteStartElement( "r", "http://schemas.openxmlformats.org/officeDocument/2006/relationships" );
            slideLayout6Writer.WriteStartElement( "a", "http://schemas.openxmlformats.org/presentationml/2006/main" );

            slideLayout6Writer.WriteStartElement( "p", "cSld" );
            slideLayout6Writer.WriteAttributeString( "name", "Title Only" );

            slideLayout6Writer.WriteStartElement( "p", "spTree" );
            slideLayout6Writer.WriteStartElement( "p", "nvGrpSpPr" );
            slideLayout6Writer.WriteStartElement( "p", "cNvpr" );
            slideLayout6Writer.WriteAttributeString( "name", "" );
            slideLayout6Writer.WriteAttributeString( "id", "1" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteStartElement( "p", "cNvGrpSpPr" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteStartElement( "p", "nvPr" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "p", "grpSpPr" );
            slideLayout6Writer.WriteStartElement( "a", "xfrm" );
            slideLayout6Writer.WriteStartElement( "a", "off" );
            slideLayout6Writer.WriteAttributeString( "y", "0" );
            slideLayout6Writer.WriteAttributeString( "x", "0" );
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "a", "ext" );
            slideLayout6Writer.WriteAttributeString( "y", "0" );
            slideLayout6Writer.WriteAttributeString( "x", "0" );
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "a", "chOff" );
            slideLayout6Writer.WriteAttributeString( "y", "0" );
            slideLayout6Writer.WriteAttributeString( "x", "0" );
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "a", "chExt" );
            slideLayout6Writer.WriteAttributeString( "y", "0" );
            slideLayout6Writer.WriteAttributeString( "x", "0" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "p", "sp" );
            slideLayout6Writer.WriteStartElement( "p", "nvSpPr" );
            slideLayout6Writer.WriteStartElement( "p", "cNvPr" );
            slideLayout6Writer.WriteAttributeString( "name", "Title 1" );
            slideLayout6Writer.WriteAttributeString( "id", "2" );
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "p", "cNvSpPr" );
            slideLayout6Writer.WriteStartElement( "a", "spLocks" );
            slideLayout6Writer.WriteAttributeString( "noGrp", "1" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "p", "nvPr" );
            slideLayout6Writer.WriteStartElement( "p", "ph" );
            slideLayout6Writer.WriteAttributeString( "type", "title" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "p", "txBody" );
            slideLayout6Writer.WriteStartElement( "a", "bodyPr" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "a", "lstStyle" );
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "a", "p" );
            slideLayout6Writer.WriteStartElement( "a", "r" );
            slideLayout6Writer.WriteStartElement( "a", "rPr" );
            slideLayout6Writer.WriteAttributeString( "lang", "en-US" );
            slideLayout6Writer.WriteAttributeString( "smtClean", "0" );
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "a", "t" );
            slideLayout6Writer.WriteRaw( "Click to edit Master title style" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "a", "endParaRPr" );
            slideLayout6Writer.WriteAttributeString( "lang", "en-US" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "p", "sp" );
            slideLayout6Writer.WriteStartElement( "p", "nvSpPr" );
            slideLayout6Writer.WriteStartElement( "p", "cNvPr" );
            slideLayout6Writer.WriteAttributeString( "name", "Date Placeholder 2" );
            slideLayout6Writer.WriteAttributeString( "id", "3" );
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "p", "cNvSpPr" );
            slideLayout6Writer.WriteStartElement( "a", "spLocks" );
            slideLayout6Writer.WriteAttributeString( "noGrp", "1" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "p", "nvPr" );
            slideLayout6Writer.WriteStartElement( "p", "ph" );
            slideLayout6Writer.WriteAttributeString( "type", "dt" );
            slideLayout6Writer.WriteAttributeString( "idx", "10" );
            slideLayout6Writer.WriteAttributeString( "sz", "half" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "p", "txBody" );
            slideLayout6Writer.WriteStartElement( "a", "bodyPr" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteStartElement( "a", "lstStyle" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteStartElement( "a", "p" );
            slideLayout6Writer.WriteStartElement( "a", "fld" );
            slideLayout6Writer.WriteAttributeString( "type", "datetime1" );
            slideLayout6Writer.WriteAttributeString( "id", "{32E0D616-E0F4-45FD-A59D-58900C81D413}" );

            slideLayout6Writer.WriteStartElement( "a", "rPr" );
            slideLayout6Writer.WriteAttributeString( "lang", "en-US" );
            slideLayout6Writer.WriteAttributeString( "smtClean", "0" );
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "a", "t" );
            slideLayout6Writer.WriteRaw( "5/17/2012" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "a", "endParaRpR" );
            slideLayout6Writer.WriteAttributeString( "lang", "en-US" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "p", "sp" );
            slideLayout6Writer.WriteStartElement( "p", "nvSpPr" );
            slideLayout6Writer.WriteStartElement( "p", "cNvPr" );
            slideLayout6Writer.WriteAttributeString( "name", "Footer Placeholder 3" );
            slideLayout6Writer.WriteAttributeString( "id", "4" );
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "p", "cNvSpPr" );
            slideLayout6Writer.WriteStartElement( "a", "spLocks" );
            slideLayout6Writer.WriteAttributeString( "noGrp", "1" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "p", "nvPr" );
            slideLayout6Writer.WriteStartElement( "p", "ph" );
            slideLayout6Writer.WriteAttributeString( "type", "ftr" );
            slideLayout6Writer.WriteAttributeString( "idx", "11" );
            slideLayout6Writer.WriteAttributeString( "sz", "quarter" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "a", "txBody" );
            slideLayout6Writer.WriteStartElement( "a", "bodyPr" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteStartElement( "a", "lstStyle" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteStartElement( "a", "p" );
            slideLayout6Writer.WriteStartElement( "a", "r" );
            slideLayout6Writer.WriteStartElement( "a", "rPr" );
            slideLayout6Writer.WriteAttributeString( "lang", "en-US" );
            slideLayout6Writer.WriteAttributeString( "smtClean", "0" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteStartElement( "a", "t" );
            slideLayout6Writer.WriteRaw( "Crowded Igloo Business System" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteStartElement( "a", "endParaRPr" );
            slideLayout6Writer.WriteAttributeString( "lang", "en-US" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "p", "sp" );
            slideLayout6Writer.WriteStartElement( "p", "nvSpPr" );
            slideLayout6Writer.WriteStartElement( "p", "cNvPr" );
            slideLayout6Writer.WriteAttributeString( "name", "Slide Number Placeholder 4" );
            slideLayout6Writer.WriteAttributeString( "id", "5" );
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "p", "cNvSpPr" );
            slideLayout6Writer.WriteStartElement( "a", "spLocks" );
            slideLayout6Writer.WriteAttributeString( "noGrp", "1" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "p", "nvPr" );
            slideLayout6Writer.WriteStartElement( "p", "ph" );
            slideLayout6Writer.WriteAttributeString( "type", "sldNum" );
            slideLayout6Writer.WriteAttributeString( "idx", "12" );
            slideLayout6Writer.WriteAttributeString( "sz", "quarter" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "a", "txBody" );
            slideLayout6Writer.WriteStartElement( "a", "bodyPr" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteStartElement( "a", "lstStyle" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteStartElement( "a", "p" );
            slideLayout6Writer.WriteStartElement( "a", "fld" );
            slideLayout6Writer.WriteAttributeString( "type", "slidenum" );
            slideLayout6Writer.WriteAttributeString( "id", "{8B131516-2DB0-4AAA-89BA-2724DE07B6A2}" );

            slideLayout6Writer.WriteStartElement( "a", "rPr" );
            slideLayout6Writer.WriteAttributeString( "lang", "en-US" );
            slideLayout6Writer.WriteAttributeString( "smtClean", "0" );
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "a", "t" );
            slideLayout6Writer.WriteRaw( "<#>" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "a", "endParaRPr" );
            slideLayout6Writer.WriteAttributeString( "lang", "en-US" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "p", "extLst" );
            slideLayout6Writer.WriteStartElement( "p", "ext" );
            slideLayout6Writer.WriteAttributeString( "uri", "{BB962C8B-B14F-4D97-AF65-F5344CB8AC3E}" );
            slideLayout6Writer.WriteStartElement( "p14", "creationId", "http://schemas.microsoft.com/office/powerpoint/2010/main" );
            slideLayout6Writer.WriteAttributeString( "val", "3805825225" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteStartElement( "p", "clrMapOvr" );
            slideLayout6Writer.WriteStartElement( "a", "masterClrMapping" );
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();
            slideLayout6Writer.WriteEndElement();

            slideLayout6Writer.WriteEndDocument();
        }
        finally
        {
            if (slideLayout6Writer != null)
                slideLayout6Writer.Flush();

            slideLayout6Writer.Close();
        }
    }

对于大规模的方法很抱歉，但在这种方法中它会引发错误。任何帮助将不胜感激。

【问题讨论】：

标签： c# xml powerpoint

【解决方案1】：

我的猜测是你已经关闭了最外层的元素，所以你不能打开一个新的，因为 XML 只允许最外层的一个元素。

这种接口对于编写 XML 来说非常方便，我自己也用过，但是如果你犯了任何嵌套错误，它可能会很麻烦。众所周知，我对接口使用自己的包装器，其中对 endElement 的调用必须指定匹配的标签名称；然后包装器可以检查调用的正确嵌套，这有助于确定错误的位置。

【讨论】：

谢谢你是对的。我关闭了一个需要开始元素的元素。没有属性字符串的元素会变得很混乱。
在我的情况下得到帮助，在创建主父节点后立即关闭它，防止尝试写入子节点。

【解决方案2】：

你调用 startelement 81 次......猜猜看：你没有调用 endelement 81 次......

所以请确保开始和结束正确匹配;)

【讨论】：