How To Add Data Or items In DataGridView ComboBox Column

Create Object Of DataGridViewComboBoxColumn & Pass Referance.

Dim DGCMB As DataGridViewComboBoxColumn = DGV.Columns(3) 

 DGCMB.Items.Add("Shirt") 

add new Referance If Other Combo

DGCMB = DGV.Columns(4) DGCMB.Items.Add("Short")