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Tagged: Open-XML-PowerTool, ThemeOverride
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When processing PowerPoint Presentations (splitting / merging pptx(s) in C# code) using OpenXml Power Tools, getting lost ThemeOverride parts. As a result losing original font color on charts. When splitting a pptx file into single slide presentations, is there any way to copy ThemeOverride parts? Thanks!
I believe I’ve fixed the issue by adding the code listed below at the end of CopyChartObjects function in the OpenXmlPowerTools PresentationBuilder.cs:
private static void CopyChartObjects(ChartPart oldChart, ChartPart newChart)
{
……………………………………………………………..
foreach (var oldTop in oldChart.Parts.Where(p => p.OpenXmlPart.ContentType == “application/vnd.openxmlformats-officedocument.themeOverride+xml”))
{
var newId = “R” + Guid.NewGuid().ToString().Replace(“-“, “”).Substring(0, 16);
ThemeOverridePart newTop = newChart.AddNewPart<ThemeOverridePart>(“application/vnd.openxmlformats-officedocument.themeOverride+xml”, newId);
newTop.FeedData(oldTop.OpenXmlPart.GetStream());
newChart.CreateRelationshipToPart(newTop, newId);
}
}
It works for me, but please correct me if I’m doing something wrong.
Thanks!
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