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Assigning a array of items to a Modern dropdown control

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Posted on by dougydoe

I'm hoping someone can help me troubleshoot this issue. I'm trying to assign a set of values in an array to a Modern dropdown control but I get this error message after the equal sign (=) is underlined with the RED squealy line;

Incompatible types for comparison. These Types can't be compared: Table, Table.

I would imagine that Table values should rather be comparable

The PowerFX line of Code is as follows; drpMon_1.SelectedItems = [ "Item1", "Item2" , "Item3" ]

I've also attached the actual screenshot here.

Any ideas or alternatives to achieving this will be greatly appreciated.

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Building Power Apps

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BCLS776 8,994 Moderator on at

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Are you trying to pre-populate the combobox with several selections? If so, put your array(table) in the DefaultSelectedItems property of the combobox, ensuring that the schema of the table records match the schema of the Items property of the combobox.

Hope that helps,

Bryan

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dougydoe 13 on at

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Hi Bryan,
Thanks for reaching out.
I've already pre-populated the Dropbox in the DefaultSelectedItem which is fine. However, I'm now trying to update the dropdown when a certain condition is met elsewhere. So, sort of trying to update it programmatically. Hope that makes sense.

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BCLS776 8,994 Moderator on at

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I'm not quite sure what you mean by "update" the dropdown, but you can put conditional logic into the Items property so that different versions of the underlying table are shown in different circumstances. An If() or Switch() statement often works in those situations.

Bryan

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dougydoe 13 on at

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The conditional logic is elsewhere in the app such that, when a condition is met, I want the dropdown to be dynamically repopulated with new items. The Item property is initially populated from a choice column in a SharePoint List using the Choice Function. I'm assuming that is possible in PowerFx

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BCLS776 8,994 Moderator on at

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@dougydoe wrote:

The conditional logic is elsewhere in the app such that, when a condition is met, I want the dropdown to be dynamically repopulated with new items. The Item property is initially populated from a choice column in a SharePoint List using the Choice Function. I'm assuming that is possible in PowerFx

Yes, this is possible, and keep in mind the schema of the different options for the Items property will need to match to avoid issues. For example, if the dropdown uses a single-column table with a field name of "Value", make sure the other options provide the same.

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