How to fill combobox column in DataGridView in vb.net?

Question

My DataGridView contains three columns, column types are checkbox, textbox and combobox.

How can I load a row's combobox when the checkbox in the same row is checked?

Answer 1

maybe this could help (example)

Dim dgvcc As DataGridViewComboBoxCell
dgvcc = DataGridView1.Rows(2).Cells(0)
dgvcc.Items.Add("comboitem1")
dgvcc.Items.Add("comboitem2")

source

Answer 2

You can bind like this -

 Dim dtRange As DataTable = GetQueryTable("select range_name from table_name")
    Me.grid_column_name.ValueMember = "range_name"
    Me.grid_column_name.DisplayMember = "range_name"
    Me.grid_column_name.DataSource = dtRange

and this will bind table record to complete DataGridViewColumn of DataGridView.

Answer 3

Another approach is to filter the Datasource (in my case a dataset) when you edit another column that needs to filter the combobox column. I find this super easy to code and efficient.

Private Sub DGV_CellBeginEdit(sender As Object, e As DataGridViewCellCancelEventArgs) Handles DGV.CellBeginEdit
Select Case e.Column.Name
    Case "TabID"
        Me.FormTabBindingSource.RemoveFilter()
        Me.FormTabBindingSource.Filter = String.Format("FormID =  {0}", DGV.Rows(e.RowIndex).Cells("FormID").Value)
    End Select
End Sub