Expression of type 'string' can't be used to index type

[Gazz1e]

Within the section "Show items available in the selected list in the item dropdown", the loadItems() function has the line...

resolve(items[wp.properties.listName]);

Which produces the error...

Expression of type 'string' can't be used to index type

This can be resolve by changing the line to...

resolve(items[wp.properties.listName as keyof typeof items]);

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Document Details

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• ID: a8fe85ee-ede7-1cac-d524-d448051dfc45
• Version Independent ID: 1ee793b9-d693-4967-988f-53c3657b5970
• Content: Use cascading dropdowns in web part properties
• Content Source: docs/spfx/web-parts/guidance/use-cascading-dropdowns-in-web-part-properties.md
• Product: sharepoint
• Technology: sharepoint-framework
• GitHub Login: @VesaJuvonen
• Microsoft Alias: vesaj

Thank you for reporting this issue. We will be triaging your incoming issue as soon as possible.

[AJIXuMuK]

Another option is to specify type for the items object:

const items: {[key: string]: any} = { // eslint-disable-line @typescript-eslint/no-explicit-any

[github-actions]

Thank you for taking the time to file an issue. We periodically archive older or inactive issues as part of our issue management process, which automatically closes them once they are archived.

If you’d like to understand more about why and how we handle archived (closed) issues, please see Our approach to closed issues.

We appreciate your contribution and if this is still an active issue with the latest SPFx versions, please do resubmit the details. We needed to perform a cleanup, so that we can start with a clean table with a new process. We apologize for the inconvenience this might cause.