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[Blog Map] One of the advantages of V2 of the Open XML SDK is that it provides us with a strongly typed XML document object model (DOM). Because elements are represented by classes, and attributes are represented by properties in the classes, developers are not at risk of misspelling element and attribute names. I was chatting about the Open XML SDK V2 with a customer, who appreciated the advantages of this approach. However, V2 of the SDK is not an option for them, because it won’t be available Read More...
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A couple of weeks ago, I posted some code to use LINQ to query tables in an Excel spreadsheet . Because you can query databases using LINQ to SQL, you can write code to query a database and do a join with data in an Excel spreadsheet. This can enable some interesting scenarios – let’s say that you have a database that contains some sort of master records, and you’ve downloaded another table and significantly modified it through one means or another. Without using this technique, you would either Read More...
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I recently posted some code that allows you to use LINQ to query Excel tables . The source for these queries is the Open XML document – you don’t need to involve the Excel application to query the data in these tables. In that post, I presented a few examples of queries of various types. This post shows a join of two tables using the extension methods and classes presented in that post. The source for this query is a spreadsheet where I imported two columns of the Northwind data into two worksheets. Read More...
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[Blog Map] Excel has a very cool feature where you can declare that a range of cells is a table. It is a feature that allows you to use Excel very much like a database. You can add new rows as necessary, sort the table by columns, do some simple filtering, calculate the sum of columns, and more. Each table has a unique table name, and each column has a name unique to its table. Because these tables are stored in Open XML documents, we can implement some simple extension methods and some classes so Read More...
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I’ll be presenting two sessions on the Open XML SDK at Tech Ed 2008 EMEA in Barcelona. OFC206 - Open XML SDK Version 2 Overview and Architecture (November 12, 13:30 - 14:45) In this session, I’ll present an overview of V2 of the Open XML SDK. I’ll talk a bit about the architecture of the Open XML formats. I’ll then compare and contrast the Office object model and the Open XML SDK, and the key benefits from using the SDK. We’ll discuss the architecture of the Open XML SDK, and the roadmap for the Read More...
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You can build very powerful document assembly solutions using the Open XML SDK V2 literally in just a few minutes. In our presentation at PDC 2008, amongst other demos, Zeyad Rajabi and I will demonstrate this in a live coding session. We'll be using the LINQ friendly features of the SDK. It really is a quite a remarkable set of tools, and if you are an Open XML aficionado, you really should attend our session! But even more important than that, we really want to see you, and hear your questions Read More...
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Many types of documents contain code, including API documentation, tutorials, specifications, technical books, and magazine articles. Too often, there is no way to automate testing and validation of this code. This post presents a small example program that shows how to use content controls in Open XML word documents to delineate code snippets so that you can automate validation of the snippets. This scenario was my first use of Open XML – it was the killer application (for me) that prompted me to Read More...
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Today, the development team for the Open XML SDK has announced that they have released the first Community Technology Preview (CTP) of version 2 of the Open XML SDK. Download it at http://go.microsoft.com/fwlink/?LinkId=127912 . There is a lot of very cool stuff in this release, including: Strongly typed document object model (DOM). Tool to compare two Open XML files. Class explorer that helps you understand the markup and determine which classes to use in the strongly typed DOM. Document reflector Read More...
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Content controls are an effective way to add structure to word processing documents. You can write a very small LINQ query to retrieve the contents of content controls. This topic in Office Online provides more information on content controls. In an upcoming post, I’m going to show how you can write a small test harness to test code that is embedded in documents. This is particularly useful, say, to a program manager who has written a specification that contains a lot of code that shows how to use Read More...
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This post presents a snippet of code to remove comments from an Open XML Wordprocessing document. Note: This post may be of interest to LINQ to XML developers, as it contains some information that helps you write queries that perform better. In the case of very large documents, the approach described below performs much better than other approaches. The code is very simple: remove all w:commentRangeStart, w:commentRangeEnd, and w:commentReference elements in the main document part, and then remove Read More...
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This post presents some code to remove personal information from an Open XML word processing document. Note: this post contains interesting information for LINQ to XML developers even if you are not interested in removing personal information from a document. It demonstrates some easy ways to write robust code in LINQ to XML that behaves properly even if we don't know the original state of the document. For instance, it shows how to write very short, robust code to remove an element that doesn't Read More...
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This is a fun, geeky post for those interested in functional programming. Sometimes you have flat data where there is hierarchy expressed in the data, but the form of the data is flat. You may need to transform this data into a hierarchy, such as an XML tree. For instance, you may have the following data: Heading [] headings = new [] { new Heading { Level = 1, Text = "Intro" }, new Heading { Level = 2, Text = "Hello" }, new Heading { Level = 2, Text = "Summary" }, new Heading { Level = 1, Text = Read More...
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