Placeholder settings wildcard keys

Question

I've seen this in some examples, but it didn't seem to work when I tried it out. Basically, take a scenario where you have a placeholder name prefix, like "column" or "row", but in the actual placeholder names you have "column1" and "column2", etc. In the placeholder settings, you want a common placeholder setting for both, so you use the key "column*" to catch both placeholders.

Like I said, I've seen this in a book or article, but not a working code sample, so I don't know if it requires code/pipeline intervention.

Answer 1

With the new dynamic placeholders of Sitecore 9, you can add a seed. In this way you can reuse the name of your placeholder and reuse the placeholder settings. However, the placeholders have another key due to their seeds.

https://doc.sitecore.net/sitecore_experience_platform/developing/developing_with_sitecore/dynamic_placeholders

Example: @Html.Sitecore().DynamicPlaceholder("column", seed: 10)