I am using a memory tag data set to reference options in a dropdown on my perspective app. I want to have a second dropdown that references all options that have the same attribute based on the first dropdowns selection. Example: Dataset - Colorado, Denver Colorado, Grand Junction Nevada, Las V…

De-dent lines 14 and 15 one step each.

You need to actually loop through the data set. This code will add the same value for however many rows are in the value dataset. Something more like tabList = [] selectedValue = self.getSibling("Zone_Select_Drop").props.value for row in range(value.getRowCount()): if value.getValueAt(row, 0…

[image] Louis Rose: tabList = [] selectedValue = self.getSibling("Zone_Select_Drop").props.value for row in range(value.getRowCount()): if value.getValueAt(row, 0) == selectedValue: tabList.append(value.getValueAt(row, 1) return tabList Why am I getting an Error on the return? …

tooltip saying “no viable alternative at input ‘return’”

Check your indentation. It needs to all be either tabs or spaces, and it needs to be at the correct level. I can see from the screen shot that it looks incorrect. Copy and paste can often mess around with it.

I have case like you need for filter second dropdown based on selection of first dropdown, can you share full script?

Well... Can you share the full question ?

I am using Query to reference option in a dropdown. Same like -Casey_Roman , I want to have a second dropdown based on the first dropdowns selection: Detail Table: ID | Area | Process Name 1 | Area 1 | P…

Use a parameterized named query, and use the first dropdown's value as the parameter to the second dropdown's query. That's it. [image] .

It's so simple more than I though, thankyou very much. I've wasted so much time on this.

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Dataset Filtering on Dropdowns

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