What's up with datasource?

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C#

I assign a DataTable, to a ComboBox's DataSource property--yet the data does NOT show in the ComboBox.

During debug, I can see where the DataSource Row.Count property shows the correct number of records, but they just will NOT display!!

(I had this problem a while ago, but I don't remember how I resolved it. Perhaps, take the clothes out of the dryer, or something like that.)

What I have tried:

Using BindingSource and DataTable.