How can I reset selected item in a combobox?

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Posted on by rohinMVP

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I have a form with two dropdowns.

The items in the second dropdown are based on the first dropdown selection.

Everything is working fine in a New form.

In the Edit form, I want to clear the second dropdown selected item if the first dropdown selection changes.

This could be probably done via variables, but how?

In second dropdown:

Items:Filter(MyList, State_x0020_Name=ComboBox1.Selected.Result)

DefaultSelectedItems:{City_x0020_Name:ThisItem.City_x0020_Name}

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Building Power Apps

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WarrenBelz 153,026 Most Valuable Professional on at

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Hi @rohinMVP ,

I assume it is the Items you want to refresh (not the DefaultSelectedItems).

If so, on the OnChange of your First Combo Box, simply put

Reset(YourComboBox2Name)

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rohinMVP 149 on at

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hi @WarrenBelz,
I tried Reset(ComboBox2) and Refresh(ComboBox2), but they didn't work.

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Jitendra_jangid 128 on at

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Hi

In DefaultSelectedItems property of Combobox2 you can check whether first Combobox1 has been updated or not and based on that set the DefaultSelectedItems.

If(ComboBox1.Selected.Result = ThisItem.<FirstComboboxfield>, {City_x0020_Name:ThisItem.City_x0020_Name}, {City_x0020_Name:Blank()})

Also, Reset(ComboBox2) on Change of first Combobox.

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rohinMVP 149 on at

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Hi @Jitendra_jangid ,

That helped me with the dropdown.

Can the same be done for a textbox also?
The textbox shows details for the item selected in combobox2.

I have the below for the Textbox

Default:Coalesce(varPopulation,Parent.Default)

In Combobox2:

OnChange:Set(varPopulation,ComboBox2.Selected.Population);Reset(Textbox2);

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WarrenBelz 153,026 Most Valuable Professional on at

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@rohinMVP ,

Typo now fixed (should be reset), but I will leave you with @Jitendra_jangid

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