/// <summary>
/// Generates the content of the custom XML properties part.
/// </summary>
/// <param name="customXmlPropertiesPart">The custom XML properties part1.</param>
private void GenerateCustomXmlPropertiesPartContent(CustomXmlPropertiesPart customXmlPropertiesPart)
{
DataStoreItem dataStoreItem = new DataStoreItem()
{
ItemId = "{" + Guid.NewGuid().ToString().ToUpper() + "}"
};
dataStoreItem.AddNamespaceDeclaration("ds", "http://schemas.openxmlformats.org/officeDocument/2006/customXml");
SchemaReferences schemaReferences = new SchemaReferences();
SchemaReference schemaReference = new SchemaReference()
{
Uri = namespaceUri
};
schemaReferences.Append(schemaReference);
dataStoreItem.Append(schemaReferences);
customXmlPropertiesPart.DataStoreItem = dataStoreItem;
}
public static void InsertCustomXmlForPpt(string pptFileName, string customXML)
{
using (PresentationDocument openXmlDoc = PresentationDocument.Open(pptFileName, true))
{
// Create a new custom XML part
int count = openXmlDoc.PresentationPart.Parts.Count();
string customXmlId = string.Format("rId{0}", count + 1);
CustomXmlPart customXmlPart = openXmlDoc.PresentationPart.AddCustomXmlPart(CustomXmlPartType.CustomXml, customXmlId);
using (Stream outputStream = customXmlPart.GetStream())
{
using (StreamWriter ts = new StreamWriter(outputStream))
{
ts.Write(customXML);
}
}
// Add datastore so that the xml will persist after the document is modified
count = customXmlPart.Parts.Count();
CustomXmlPropertiesPart customXmlPropertiesPart = customXmlPart.AddNewPart <CustomXmlPropertiesPart>(string.Format("rId{0}", count + 1));
DataStoreItem dataStoreItem = new DataStoreItem()
{
ItemId = string.Format("{0}", Guid.NewGuid())
};
dataStoreItem.AddNamespaceDeclaration("ds", "http://schemas.openxmlformats.org/officeDocument/2006/customXml");
SchemaReferences schemaReferences = new SchemaReferences();
SchemaReference schemaReference = new SchemaReference()
{
Uri = "http://www.w3.org/2001/XMLSchema"
};
schemaReferences.Append(schemaReference);
dataStoreItem.Append(schemaReferences);
customXmlPropertiesPart.DataStoreItem = dataStoreItem;
// Add the xml to the customer data section of the document
CustomerData customerData = new CustomerData()
{
Id = customXmlId
};
if (openXmlDoc.PresentationPart.Presentation.CustomerDataList != null)
{
// Sequence matters: http://www.schemacentral.com/sc/ooxml/e-p_custDataLst-1.html
if (openXmlDoc.PresentationPart.Presentation.CustomerDataList.Count() > 0)
{
openXmlDoc.PresentationPart.Presentation.CustomerDataList.InsertBefore(customerData, openXmlDoc.PresentationPart.Presentation.CustomerDataList.FirstChild);
}
else
{
openXmlDoc.PresentationPart.Presentation.CustomerDataList.Append(customerData);
}
}
else
{
CustomerDataList customerDataList = new CustomerDataList();
customerDataList.Append(customerData);
// Sequence matters: http://www.schemacentral.com/sc/ooxml/e-p_presentation.html
if (openXmlDoc.PresentationPart.Presentation.Kinsoku != null)
{
openXmlDoc.PresentationPart.Presentation.InsertBefore(customerDataList, openXmlDoc.PresentationPart.Presentation.Kinsoku);
}
else if (openXmlDoc.PresentationPart.Presentation.DefaultTextStyle != null)
{
openXmlDoc.PresentationPart.Presentation.InsertBefore(customerDataList, openXmlDoc.PresentationPart.Presentation.DefaultTextStyle);
}
else if (openXmlDoc.PresentationPart.Presentation.ModificationVerifier != null)
{
openXmlDoc.PresentationPart.Presentation.InsertBefore(customerDataList, openXmlDoc.PresentationPart.Presentation.ModificationVerifier);
}
else if (openXmlDoc.PresentationPart.Presentation.PresentationExtensionList != null)
{
openXmlDoc.PresentationPart.Presentation.InsertBefore(customerDataList, openXmlDoc.PresentationPart.Presentation.PresentationExtensionList);
}
else
{
openXmlDoc.PresentationPart.Presentation.Append(customerDataList);
}
}
}
}