ComboBox, SharePoint Choice Column, and IF Then Statement

[kgordish]

Hello,

I have 2 ComboBoxes. 
Data Source is a SharePoint Choice Field. 

Trying to write an IF Then Statement, but having issues.
Part of me suspects it is  due to the "Complex" column issue. 

Essentially trying to write if "Not Required" Selected then "Not Required" or Selected Item Value

Combobox20 and ComboBox21

Default for Combobox21
IF(DataCardValue20.Selected.Value = "Not Required", "Not Required","DataCardValue21.Selected.Value")

Learning the intricacies of complex columns is frustrating at times.  
Any insight?

[v-xiaochen-msft · Accepted solution]

Hi @kgordish ,

Could you tell me:

1. Are Combobox20 and DataCardValue20 the same control?
2. Are Combobox21 and DataCardValue21 the same control?
3. Do you want when Combobox20 control selects “Not Required”, Combobox21 control will display “Not Required” by default?
4. Do you want when Combobox20 control doesn’t select “Not Required”, Combobox21 control will display the first option by default ?

If my assumptions are correct, the point is to use the DefaultSelectedItems property of the combo box control.

I've made a test for your reference:

1\ This is my list “LIST31”.

2\ Set the DataCardValue21’s DefaultSelectedItems property to:

If(DataCardValue20.Selected.Value="Not Required",{Value:"Not Required"},First(Choices(LIST31.ComboBox21)))

3\ The result is as follows:

Best Regards,

Wearsky

[kgordish]

@v-xiaochen-msft 
Thank you for the clue. The formula I am using below seems to work just fine. 

I was editing default instead of defaultselecteditems.

Left: Combobox20; Right: Combobox21

Instead of First(Choices...) I used Defaults formula. That way the default for ComboBox21 was not set to "Not Required" when ComboxBox20 had nothing selected due to the First Choice. 

I used If(DataCardValue20.Selected.Value="Not Required",{Value:"Not Required"},Defaults('Test Drop Down'.Function_Status))

[kgordish · Accepted solution]

Follow Up. 

I had issues with formula above. Previously saved data was not showing in the app.

After trial and error this formula works. 

If(DataCardValue20.Selected.Value="Not Required",{Value:"Not Required"}, (ThisItem.'Name of SharePoint Column'))