Comments on: Introduction to Microsoft’s Open Xml Format SDK 2.0 with a focus on Excel documents

By: OpenXML SDK: Make Excel recalculate formula | SeekPHP.com

OpenXML SDK: Make Excel recalculate formula | SeekPHP.com — Thu, 17 Nov 2011 04:03:36 +0000

[...] What is the best way to invalidate all dependent cells of the whole workbook through the SDK? So far, I’ve found the following code snippet at http://cdonner.com/introduction-to-microsofts-open-xml-format-sdk-20-with-a-focus-on-excel-documents…: [...]

By: jared

jared — Thu, 27 Oct 2011 15:34:04 +0000

Hi guys, I was able to figure it out. I just compared the length of each cell name and only do the second comparison if the lengths are equal. If one has a length of 3 (AA1), and the other has a length of 2 (B1) skip the if statement.

if (string.Compare(ecell.CellReference.Value, cellReference, true) > 0)

becomes:

if ((ecell.CellReference.Value.Length == cellReference.Length) && (string.Compare(ecell.CellReference.Value, cellReference, true) > 0))

By: jared

jared — Thu, 27 Oct 2011 15:16:37 +0000

Thanks. Florian and Ryan, I am having the same issue. How did you solve it? I found the line, but don’t know the work around.

By: Florian

Florian — Mon, 04 Jul 2011 07:52:02 +0000

Hi Christian,
i have another question, I’m looking to a way to export some summations. I only have found the example in the SDK, but there is no way to export the formula. Is there another way to export it or is there another DataType for the formula?

Thanks

By: Florian

Florian — Mon, 27 Jun 2011 12:29:47 +0000

Oh sorry,

i have found the error,
Ryan had the same problem.

Thanks

By: Florian

Florian — Mon, 27 Jun 2011 12:04:14 +0000

Hi,

i’m using the OpenXML SDK 2.0 and i have a little problem with the columns. However i come to the column AA or AB the first columns from B to Z are empty.
Excel give me an error message that there is something unreadable in the sheet. But A , AA and AB isn’t empty.

Thanks

By: Ryan

Ryan — Tue, 13 Jul 2010 20:57:29 +0000

Nevermind, I found the problem. This line of code is the culprit in GetCell():

if (string.Compare(ecell.CellReference.Value, cellReference, true) > 0)

This will return true when comparing B1 to AA1.

By: Ryan

Ryan — Tue, 13 Jul 2010 19:02:18 +0000

Hi Christian,
UpdateCell doesn’t seem to work for me once I get passed ‘Z’ for the column name. For example ‘AA’ doesn’t seem to work correctly. Is this a known problem?

Thanks,

By: Christian Donner

Christian Donner — Thu, 19 Nov 2009 23:55:21 +0000

Roozy, I don’t know the Powerpoint API of the Open XML SDK, but if what you want to do can be done, I am sure it can be done with Open XML.

By: Roozy

Roozy — Thu, 19 Nov 2009 10:14:25 +0000

Hi Christian,

I am trying to use open xml format to recognize the repeating pattern in a set of powerpoint presentations so that I can later use the repeating parts to make a template like presentation and spare the users time instead of starting from scratch. Do you think open xml is a good idea for this purpose?