finding only the dropdown prevalues that are being used

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Chris Barber 11 posts 109 karma points

Jun 16, 2023 @ 09:36
0

Finding only the DropDown prevalues that are being used

Using Umbraco And Getting Started

Umbraco 9
Hi, What is the best way to get only the DropDown prevalues that are currently being used/have dependencies?

For example: With a given list of Document Categories

The following code gets all the Document Categories:
```
var categories = DataTypeService.GetDataType(DropDownListIds.DocumentCategories)?.Configuration as DropDownFlexibleConfiguration;
```
Is there a way to only retrieve the prevalues that are being used (e.g. if there are no 'Policies' documents there is no point in displaying the option in the dropdown)?

Thanks in advance
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Daniel 13 posts 103 karma points

Jun 19, 2023 @ 17:43
0
Hi, I'm not 100% sure if you are simply trying to find the selected values in a dropdown or if you are creating a service that looks for all the uses of this property globally within a solution.

If you are only looking for the selected values in a view, it should be as simple as referring to the documentation
```
var selectedValues = Model.Value<IEnumerable<string>>("DropDown");
```
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Chris Barber 11 posts 109 karma points

Jun 20, 2023 @ 07:34

0

Hi Daniel, Thank you for your reply. It is the latter situation that I had in mind. Is there a 'out of the box' way to create a service that finds all the uses of this property globally within a solution?

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Daniel 13 posts 103 karma points

Jun 22, 2023 @ 11:37
100
Hi again.

Don't know if there is a service for it, but I found it using some database queries.

Assuming that you use Umbraco 11, you could use this:
```
SELECT * FROM cmsPropertyType
where Alias = 'DocumentCategories'
```
Use the returned Id from this list that matches your property editor: (296 is a dummy number)
```
SELECT *
FROM umbracoPropertyData
WHERE propertyTypeId = 296
```
That should get you all the data of where the property editor is used.

Hope it helps you create your service :)
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Chris Barber 11 posts 109 karma points

Jun 22, 2023 @ 12:07

0

thanks, I'll give it a try

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