bind data from database to datagridview combobox

[KIDYA]

Hello Experts!! I am using following code to bind data from db to datagridview column having type combobox. but i dont know how to show data into combobox.

Dim o As New designpant
Dim i As Integer
rssearch = New ADODB.Recordset
rssearch.Open("select srno from designpant", con, ADODB.CursorTypeEnum.adOpenDynamic, ADODB.LockTypeEnum.adLockPessimistic)
While Not rssearch.EOF
o = New designpant
o.dsrno = rssearch.Fields("srno").Value

        Dim row1() As String = {o.dsrno}
        Dim rows() As Object = {row1}
        Dim rowArray As String()
        For Each rowArray In rows
               Dim no As Integer = rowArray(0)
            'ComboBox1.Items.Add(no)
            dgvsherwanibottom.Columns  **//like combobox1 i want to show rowArray contents into gridview combobox  **            Next rowArray

[dan sh]

1. DataGridViewComboBoxColumn 2. DataGridViewComboBoxColumn.DataSource 3. DataGridViewComboBoxColumn.DisplayMember 4. DataGridViewComboBoxColumn.ValueMember

[KIDYA]

In my code it shows only DataGridViewComboBoxColumn.Equals and DataGridViewComboBoxColumn.reference properties Does i made any mistake? Where i have to write this?? i am trying it in form load.