Patch forceDownload in Sitecore media types for PDF files

Question

I want to patch only the ForceDownload attribute in below config:

<mediaLibrary>
    <mediaTypes>
        <mediaType name="PDF file" extensions="pdf">
            <mimeType>application/pdf</mimeType>
            <forceDownload>true</forceDownload>
            <sharedTemplate>system/media/unversioned/pdf</sharedTemplate>
            <versionedTemplate>system/media/versioned/pdf</versionedTemplate>
        </mediaType>
    </mediaTypes>
</mediaLibrary>

Please let me know, how to write the patch to make ForceDownload to false.

Answer 1

A slightly shortened version of the config Marek Musielak suggested can be achieved using patch:instead to replace the node with a new one:

<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/">
  <sitecore>
    <mediaLibrary>
      <mediaTypes>
        <mediaType name="PDF file" extensions="pdf">
          <forceDownload patch:instead="forceDownload">false</forceDownload>
        </mediaType>
      </mediaTypes>
    </mediaLibrary>
  </sitecore>
</configuration>

Answer 2

You can remove the original forceDownload element and insert new one with false value.

1. Create a patch file called MediaType.Pdf.Disable.ForceDownload.config.

2. Edit the file and enter the following xml:

<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/">
  <sitecore>
    <mediaLibrary>
      <mediaTypes>
        <mediaType name="PDF file" extensions="pdf">
          <forceDownload>
            <patch:delete />
          </forceDownload>
          <forceDownload>false</forceDownload>
        </mediaType>
      </mediaTypes>
    </mediaLibrary>
  </sitecore>
</configuration>

3. Copy the file to App_Config\Include folder of your website or any of the subfolders of that folder.

More about patching can be read in the article:

https://doc.sitecore.com/developers/90/platform-administration-and-architecture/en/use-a-patch-file-to-customize-the-sitecore-configuration.html

Answer 3

To update element values like this, it's sufficient to just go down the unique path to the value you want to change, without specifying any patch attribute. This works just fine:

<configuration>
  <sitecore>
    <mediaLibrary>
      <mediaTypes>
        <mediaType name="PDF file">
          <forceDownload>false</forceDownload>
        </mediaType>
      </mediaTypes>
    </mediaLibrary>
  </sitecore>
</configuration>