data type from datagridview

I have a datagridview bound to an Acess DB. I want to set the values from the datagrid into a textbox and assign them to an integer variable.

Whatever I try I get the message that the datagrid cannot be converted into the necessary datatype (string or integer)

Help or please point me to a source.

Private Sub PictureBox1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles pic.Click

'Draw line on picturebox

'Put a picturebox on the form named pic

Dim bit As Bitmap = New Bitmap(pic.Width, pic.Height)

Dim h As Integer

Dim w As Integer

Dim g As Graphics = Graphics.FromImage(bit)

Dim myPen As Pen = New Pen(Color.Blue, 3)

End Sub

Thanks,

DWR