Custom field dropdown keeps resetting to default value on edit form

[JMAFO]

Hello everyone,

I used this post to customize some list forms: https://powerapps.microsoft.com/en-us/blog/separate-custom-forms/

I also used a custom dropdown that sets the value to a text field, however, whenever I edit a list item, the dropdown resets to the default value. Does anyone have experience with this type of thing? 

[v-xida-msft · Accepted solution]

Hi @JMAFO ,

Could you please share a bit more about the issue within your custom form?

Could you please show more details about the custom Dropdown that you mentioned?

I assume that you added a column in your SP list to store the custom Dropdown selected value, is it true? I suppose that you want the custom Dropdown to display the stored value within your SP list rather than reset to default value, is it true?

I have made a test on my side, please take a try with the following workaround:

Set the Default property of the custom Dropdown to following:

If(
   SharePointForm1.Mode = FormMode.Edit,
   SharePointIntegration.Selected.ColumnName
)

Note: The ColumnName represents the Column in your SP list, which used to store the custom Dropdown selected value.

If the custom Dropdown is a ComboBox control, please take a try with the following workaround:

Set the DefaultSelectedItems property of the ComboBox to following:

If(
   SharePointForm1.Mode = FormMode.Edit,
   LookUp('The formula/data source you typed within the Items property of the ComboBox control', DisplayColumn = SharePointIntegration.Selected.ColumnName)
)

Note: The DisplayColumn represents the column you displayed within your custom ComboBox control.

Best regards,