How to use BindingSource with not 1 to 1 set of columns between the list and the DataGridView

I have the following situation working with winforms:

1. I defined a DataGridView with X columns.
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2. Bind it to a list containing X-1 columns

   dataGridViewMain.DataSource = _bindingSource; _bindingSource.DataSource = _currentMediaItems;

3. After a while I update the list and when performing the following call: _bindingSource.DataSource = _currentMediaItems; I get the following error : "At least one of the DataGridView control's columns has no cell template."

Someone can help with a workaround?

thanks!