<p>I am building a table using the DataGridView where a user can select items from a dropdown in each cell.   To simplify the problem, lets say i have 1 column.  I am using the DataGridViewComboBoxColumn in the designer.  I am trying to support having each row in that column have a different list of items to choose from.</p>

<p>Is this possible?</p>

Yes. This can be done using the DataGridViewComboBoxCell.
Here is an example method to add the items to just one cell, rather than the whole column.
```
```
private void setCellComboBoxItems(DataGridView dataGrid, int rowIndex, int colIndex, object[] itemsToAdd)
{
    DataGridViewComboBoxCell dgvcbc = (DataGridViewComboBoxCell) dataGrid.Rows[rowIndex].Cells[colIndex];
    // You might pass a boolean to determine whether to clear or not.
    dgvcbc.Items.Clear();
    foreach (object itemToAdd in itemsToAdd)
    {
        dgvcbc.Items.Add(itemToAdd);
    }
}
```
```