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Modify dfs2 items not working #38

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Modify dfs2 items not working#38
@daniel-caichac-DHI

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@daniel-caichac-DHI
daniel-caichac-DHI
opened on Sep 22, 2025

Hi.

I have a bunch of files with wrong item type (I did not make them). I need to re-write the eumUnit and eumItem but re-writing the files is not an option since each file is +100GB.

I am currently using DataUtility which takes like a second but I need to click in each item of each file (it is 4 items and 50 files, so lots of clicks).

I tried this, but does not work. File date is updated, but the items remain unchanged.

mikecore-python/tests/examples_dfs2.py

Lines 47 to 58 in bdccb53

def ModifyDfs2ItemInfo(filename):
# Open the file for editing
file = DfsFileFactory.Dfs2FileOpenEdit(filename);
# Original name is "Landuse" (7 characters), "GroundUse" is truncated to "GroundU"
file.ItemInfo[0].Name = "GroundUse";
# Provide a new quantity (updating the item and unit of the quantity directly does not work!)
file.ItemInfo[0].Quantity = eumQuantity(eumItem.eumIAreaFraction, eumUnit.eumUPerCent);
# done
file.Close();

is there any suggestion?

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