How to format rows in datatable

Public Class Form1
 Private Sub Form1_Load1(sender As Object, e As System.EventArgs) Handles Me.Load

myTable.Columns.Add("Shake /Cereal", GetType(Integer))
       myTable.Columns.Add("Entrees", GetType(Integer))
       myTable.Columns.Add("Bar", GetType(Integer))
       myTable.Columns.Add("Total", GetType(Integer))

       myTable.Columns("Shake /Cereal").DefaultValue = 0
       myTable.Columns("Entrees").DefaultValue = 0
       myTable.Columns("Bars").DefaultValue = 0

End Sub

Private Sub DataGridView1_CellEndEdit(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellEndEdit

        myTable.Columns("Total").Expression = "[Shake /Cereal] + Entrees + Bars"
End Sub