Error when iterating dictionary over keys

PaulS

Summary

I copied the example in the documentation for iterating a dictionary over keys
Adjusted it with my dictionary name (dicData)
Unfortunately there is an error:

For Each variable type 'String' does not match collection element type 'Array'.

Objo Studio Version

26.6.2

Operating System

Select the operating system(s) affected as tags for this post.
macOS

Steps To Reproduce

Expected Result

Actual Result

Screenshots, Logs, Or Sample Project

Garry

This is fixed for the next release: https://feedback.objo.dev/bug/401

Thanks for reporting this. The example in the docs was missing an important detail: For Each key As String In dict.Keys assumes the dictionary is declared as something like Dictionary(Of String, ...).

If the dictionary is declared as plain Dictionary, the compiler cannot know the key type from Keys. In that case, use:

For Each key As Object In dicData.Keys
    Print(key.ToString())
Next

or declare the dictionary with a key type:

Var dicData As Dictionary(Of String, Object) = {}

I’ve fixed the compiler diagnostic so it no longer reports the collection element type as Array in this situation, and I’ve updated the docs to make the typed-dictionary requirement clearer in the next release.