Well it was almost as easy as I thought it would be:

this.myComboBox.DataSource = this.myDataTable;
this.myComboBox.DisplayMember = "myColumn";

>How can I populate a combobox from a column in a datatable?
>
>I thought it would be as easy as:
>

>this.myComboBox.DataSource = this.myDataTable.Columns[];
>

>But that doesn't work.
>
>Thanks,
>Einar