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Generate a Word document (docx) using data from an XML file / Convert XML to a Word document based on a template

I have an XML file with the data that I need to be populated on a Word document.

I need to find a way, to define a template which can be used as a base line to populate data from an XML file and create an output document.

I believe there are two ways to do this.

  1. Create an XSLT file which will be the "template" and use this to generate Word documents using it in conjunction with the XML file.
  2. Use content controls in Word to create a template document and somehow map to an XML file.

I just don't know the details on how to implement either way. Or not sure if there is another, easier way to accomplish this task.

Could someone show an example of how this can be implemented. Just a simple example would be sufficient.

I prefer C# for any coding. I am using Word 2016 but want it to be compatible from Word 2007 to Word 2016 and everything in between if possible since users will be using these versions. Thank you!

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slayernoah Avatar asked May 01 '18 13:05

slayernoah


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1 Answers

Figured out how to use content controls to generate documents and how to populate data from an XML into content controls. I've divided this into 2 parts:

  • Part 1: Create your template document for document generation
  • Part 2: Use code in C# to generate documents based on template

Part 1: Create your template document for document generation

  1. Create a sample XML based on which you can create the Word template for document generation. Preferably start with a less complicated version to get the hang of it.

I used the following XML for testing. For testing I didn't have repeating sections, pictures etc.

<?xml version="1.0" encoding="utf-8"?>
<mydata xmlns="http://CustomDemoXML.htm">
    <field1>This is the value in field1 from the XML file</field1>
    <field2>This is the value in field2 from the XML file</field2>
    <field3>This is the value in field3 from the XML file</field3>
</mydata>

Note 1: This is will be just a sample XML to create your Word template. XML file(s) with real data in this same format can later be applied when generating Word document(s) from the template.

Note 2: The xmlns attribute can contain literally anything you want and it doesn't have to be a URL starting with http.

Save your sample XML file to any location so that it can be imported to the template you are about to create.

  1. Make sure the Developer tab is enabled on your copy of Word [File -> Options -> Customize Ribbon -> Under Customize the Ribbon, make sure Developer is selected -> OK]. Details: How to: Show the Developer Tab on the Ribbon

  2. Create a new Word document (or use an existing Word document) which will be your template for document generation.

  3. On the Developer tab, click on XML Mapping Pane. This will open the XML Mapping Pane on the right side of the document.

  4. On the XML Mapping Pane, select the Custom XML Part drop down -> Select (Add new part).

  5. Select the XML file that you saved on step 1 -> Open.

  6. On the XML Mapping Pane, select the Custom XML Part drop down -> Select the item with the text that was on the xmlns attribute of the custom XML file. If you use the sample file above, it would be http://CustomDemoXML.htm.

  7. Add a some static text to a Word document and add a Plain Text Content Control next to it (on the Developer tab -> Controls section. Repeat for all fields you need to add.

For the sample XML above, I had the following Word document:

sample word document template

  1. Click on the first Plain Text Content Control -> On the XML Mapping Pane, right click the field you want mapped to that content control -> Click Map to Selected Content Control. Repeat for all the fields you want to map.

Note: Alternatively, instead of adding the Plain Text Content Control items from the developer tab on step #8, you could right click on the field you want to map on the XML Mapping Pane -> Click Insert Content Control -> Click Plain Text.

Similarly, you can also add other types of controls such as checkboxes, date pickers and even repeating sections (it supports nested repeating sections too! - since Word 2013) and map data from XML to those using just native Word functionality and without any third party tools!

  1. Save your template document.

Part 2: Use code in C# to generate documents based on template

This uses Microsoft's recommended OpenXML SDK to generate documents using an XML file containing real data.

  1. Build your XML file/open an existing XML file with which to generate a document from the template created above. This needs to be in the same format as the sample XML file used to create the template.

  2. Use the OpenXML SDK to delete any CustomXMLPart elements from the document. This assumes no other custom XML parts are used in the document which is the case in this example. For complex scenarios, you can delete specific XML parts if needed.

  3. Use the OpenXML SDK to add a new CustomXMLPart based on the XML file in step#1 above.

Here is the sample code I have to "refresh"/"reload" the sample data in the template with a data from an XML file containing real data (assuming the XML file used to generate the document is already created and saved):

using System.IO;
using DocumentFormat.OpenXml.Packaging;

namespace SampleNamespace
{
    public static class SampleClass
    {
        public static void GenerateDocument()
        {
            string rootPath = @"C:\Temp";
            string xmlDataFile = rootPath + @"\MyNewData.xml";
            string templateDocument = rootPath + @"\MyTemplate.docx";
            string outputDocument = rootPath + @"\MyGeneratedDocument.docx";

            using (WordprocessingDocument wordDoc = WordprocessingDocument.Open(templateDocument, true))
            {
                //get the main part of the document which contains CustomXMLParts
                MainDocumentPart mainPart = wordDoc.MainDocumentPart;

                //delete all CustomXMLParts in the document. If needed only specific CustomXMLParts can be deleted using the CustomXmlParts IEnumerable
                mainPart.DeleteParts<CustomXmlPart>(mainPart.CustomXmlParts);

                //add new CustomXMLPart with data from new XML file
                CustomXmlPart myXmlPart = mainPart.AddCustomXmlPart(CustomXmlPartType.CustomXml);
                using (FileStream stream = new FileStream(xmlDataFile, FileMode.Open))
                {
                    myXmlPart.FeedData(stream);
                }
            }

        }
    }
}

That's it!

like image 106
slayernoah Avatar answered Oct 20 '22 22:10

slayernoah