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Presentation corrupts as Excel file used in chart part is missing while building presentation from slideparts. #15

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Presentation corrupts as Excel file used in chart part is missing while building presentation from slideparts. #15

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Presentation corrupts as Excel file used in chart part is missing whi…
ghhkpandey Sep 13, 2019
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Revert "Presentation corrupts as Excel file used in chart part is mis…
ghhkpandey Sep 13, 2019
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Presentation corrupts as Excel file used in chart part is missing whi…
ghhkpandey Sep 13, 2019
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15 changes: 15 additions & 0 deletions OpenXmlPowerTools/PresentationBuilder.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -1057,6 +1057,21 @@ private static void CopyChartObjects(ChartPart oldChart, ChartPart newChart)
dataReference.Attribute(R.id).Value = newChart.GetIdOfPart(newPart);
continue;
}
ExtendedPart extendedPart = oldPartIdPair.OpenXmlPart as ExtendedPart;
if (extendedPart != null)
{
ExtendedPart newPart = newChart.AddExtendedPart(extendedPart.RelationshipType, extendedPart.ContentType, ".dat");
using (Stream oldObject = extendedPart.GetStream(FileMode.Open, FileAccess.Read))
using (Stream newObject = newPart.GetStream(FileMode.Create, FileAccess.ReadWrite))
{
int byteCount;
byte[] buffer = new byte[65536];
while ((byteCount = oldObject.Read(buffer, 0, 65536)) != 0)
newObject.Write(buffer, 0, byteCount);
}
dataReference.Attribute(R.id).Value = newChart.GetIdOfPart(newPart);
continue;
}
EmbeddedObjectPart oldEmbeddedObjectPart = oldPartIdPair.OpenXmlPart as EmbeddedObjectPart;
if (oldEmbeddedObjectPart != null)
{
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