Hi @Anonymous,
Could you please share a bit more about your app's configuration?
Do you want to display value from the Drop down control within a TextInput control?
I don't agree with @RusselThomas's thought almost. I assume that the Items property of the Drop down control is set to a Table (Just like an Array with many options) as below:
Table(
{Id:1,ProductName:"Product1",Vendor:"Apple"},
{Id:2,ProductName:"Product2",Vendor:"Amazon"}
)
Then you could specify which column (of above table) as the display value within the Drop down control via specifying value within Value property as below:
The DataCardValue1.Selected.Value formula would retrieve the display value that you selected from the Drop down control. e.g. You select Apple from the Drop down control, the DataCardValue1.Selected.Value formula would retrieve the following data:
Apple
The DataCardValue1.Selected formula would retrieve the entire row (from the above table) where your selectd value (from the Drop down control) belongs to. e.g. You select Amazon from the Drop down control, the DataCardValue1.Selected formula would retrieve the following data (one record):
{Id:2,ProductName:"Product2",Vendor:"Amazon"}
Please check if the field (or column) that you displayed within the Drop down control is a Text column or a Record column (e.g. Person or Group type column in SP list, Choice type column in SP list.etc)
More details about the Drop down control within PowerApps, please check the following article:
Drop down control
Best regards,
Kris