Creating PowerPoint Document

Question

I am busy recreating a powerpoint with xml. i have added all the neccessary files but when i open the document in powerpoint, it says there is a problem with the content. is there any where where i can see more examples of working like this etc? here is a sample of how i am working with it:

 private static void SlideMaster1Xml()
    {
        FileStream slideMaster1stream = new FileStream(slideMaster1FilePath, FileMode.Create, FileAccess.Write);
        XmlWriter slideMaster1Writer = null;

        try
        {
            XmlWriterSettings contentTypesSettings = new XmlWriterSettings();
            contentTypesSettings.Indent = true;
            slideMaster1Writer = XmlWriter.Create(slideMaster1stream, contentTypesSettings);

            slideMaster1Writer.WriteStartDocument(true);
            slideMaster1Writer.WriteStartElement("p", "sldMaster", "http://schemas.openxmlformats.org/presentationml/2006/main");
            slideMaster1Writer.WriteAttributeString("xmlns","r",null ,"http://schemas.openxmlformats.org/officeDocument/2006/relationships");
            slideMaster1Writer.WriteAttributeString("xmlns", "a",null, "http://schemas.openxmlformats.org/drawingml/2006/main");

            slideMaster1Writer.WriteStartElement("p", "cSld", null);
            slideMaster1Writer.WriteStartElement("p", "bg", null);
            slideMaster1Writer.WriteStartElement("p", "bgRef", null);
            slideMaster1Writer.WriteAttributeString("Idx", "1001");

            slideMaster1Writer.WriteStartElement("a", "schemeClr", null);
            slideMaster1Writer.WriteAttributeString("val", "bg1");
            slideMaster1Writer.WriteEndElement();
            slideMaster1Writer.WriteEndElement();
            slideMaster1Writer.WriteEndElement();

            slideMaster1Writer.WriteStartElement("p", "spTree", null);
            slideMaster1Writer.WriteStartElement("p", "nvGrpSpPr", null);
            slideMaster1Writer.WriteStartElement("p", "cnvPr", null);
            slideMaster1Writer.WriteAttributeString( "name", "" );
            slideMaster1Writer.WriteAttributeString("Id", "1");
            slideMaster1Writer.WriteEndElement();

            slideMaster1Writer.WriteStartElement("p", "cNvGrpSpPr", null);
            slideMaster1Writer.WriteEndElement();

            slideMaster1Writer.WriteStartElement("p", "nvPr", null);
            slideMaster1Writer.WriteEndElement();
            slideMaster1Writer.WriteEndElement();

            slideMaster1Writer.WriteStartElement("p", "grpSpPr", null);
            slideMaster1Writer.WriteStartElement("a", "xfrm", null);
            slideMaster1Writer.WriteStartElement("a", "off", null);
            slideMaster1Writer.WriteAttributeString( "y", "0" );
            slideMaster1Writer.WriteAttributeString("x", "0");
            slideMaster1Writer.WriteEndElement();

            slideMaster1Writer.WriteStartElement("a", "ext", null);
            slideMaster1Writer.WriteAttributeString("cy", "0");
            slideMaster1Writer.WriteAttributeString("cx", "0");
            slideMaster1Writer.WriteEndElement();

            slideMaster1Writer.WriteStartElement("a", "chOff",null);
            slideMaster1Writer.WriteAttributeString( "y", "0" );
            slideMaster1Writer.WriteAttributeString("x", "0");
            slideMaster1Writer.WriteEndElement();

            slideMaster1Writer.WriteStartElement("a", "chExt",null);
            slideMaster1Writer.WriteAttributeString("cy", "0");
            slideMaster1Writer.WriteAttributeString("cx", "0");
            slideMaster1Writer.WriteEndElement();
            slideMaster1Writer.WriteEndElement();
            slideMaster1Writer.WriteEndElement();

            slideMaster1Writer.WriteStartElement("p", "sp",null);
            slideMaster1Writer.WriteStartElement("p", "nvSpPr",null);
            slideMaster1Writer.WriteStartElement("p", "cNvPr",null);
            slideMaster1Writer.WriteAttributeString( "name", "Title Placeholder 1" );
            slideMaster1Writer.WriteAttributeString("id", "2");
            slideMaster1Writer.WriteEndElement();

            slideMaster1Writer.WriteStartElement("p", "cNvSpPr",null);
            slideMaster1Writer.WriteStartElement("a", "spLocks",null);
            slideMaster1Writer.WriteAttributeString("noGrp", "1");
            slideMaster1Writer.WriteEndElement();
            slideMaster1Writer.WriteEndElement();

            slideMaster1Writer.WriteStartElement("p", "nvPr",null);
            slideMaster1Writer.WriteStartElement("p", "ph",null);
            slideMaster1Writer.WriteAttributeString("type", "title");
            slideMaster1Writer.WriteEndElement();
            slideMaster1Writer.WriteEndElement();
            slideMaster1Writer.WriteEndElement();

            slideMaster1Writer.WriteStartElement("p", "spPr",null);
            slideMaster1Writer.WriteStartElement("a", "xfrm",null);
            slideMaster1Writer.WriteStartElement("a", "off",null);
            slideMaster1Writer.WriteAttributeString( "y", "274638" );
            slideMaster1Writer.WriteAttributeString("x", "457200");
            slideMaster1Writer.WriteEndElement();

            slideMaster1Writer.WriteStartElement("a", "ext",null);
            slideMaster1Writer.WriteAttributeString("cy", "1143000");
            slideMaster1Writer.WriteAttributeString( "cx", "8229600" );
            slideMaster1Writer.WriteEndElement();
            slideMaster1Writer.WriteEndElement();

            slideMaster1Writer.WriteStartElement("a", "prstGeom",null);
            slideMaster1Writer.WriteAttributeString("prst", "rect");

            slideMaster1Writer.WriteStartElement("a", "avLst",null);
            slideMaster1Writer.WriteEndElement();

            slideMaster1Writer.WriteEndElement();
            slideMaster1Writer.WriteEndElement();

            slideMaster1Writer.WriteStartElement("p", "txBody",null);
            slideMaster1Writer.WriteStartElement("a", "bodypr",null);
            slideMaster1Writer.WriteAttributeString("anchor", "ctr");
            slideMaster1Writer.WriteAttributeString("rtlCol", "0");
            slideMaster1Writer.WriteAttributeString("bIns", "45720");
            slideMaster1Writer.WriteAttributeString("rIns", "91440");
            slideMaster1Writer.WriteAttributeString("tIns", "45720");
            slideMaster1Writer.WriteAttributeString("lIns", "91440");
            slideMaster1Writer.WriteAttributeString("vert", "horz");

I have been through all the code a 100 times but cannot see what is wrong. any help will be appreciated.

Answer 1

A good tool for troubleshooting OOXML generation, is the Open XML SDK 2.0 Productivity Tool that comes with the Open XML SDK. It will validate the generated XML, and display what is wrong. Works for both 2007 and 2010 formats.