help me handles event when i click on button in datagridview

<asp:TemplateField>
  <ItemTemplate>
    <asp:Button ID="AddButton" runat="server"
      CommandName="AddToData"
      CommandArgument="<%# ((GridViewRow) Container).RowIndex %>"
      Text="Add to Cart" />
  </ItemTemplate>
</asp:TemplateField>

protected void GridView1_RowCommand(object sender,
  GridViewCommandEventArgs e)
{
  if (e.CommandName == "AddToData")
  {
    // Add code here to related to the row.
  }

  }

Private Sub gvView_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles gvView.CellContentClick
        Dim strID As String
        Dim strName As String
        Dim strPricw As String
        Dim strQuan As String
        If e.ColumnIndex = 0 Then
            strID = gvView.Rows(e.RowIndex).Cells(3).Value.ToString()
            strName = gvView.Rows(e.RowIndex).Cells(4).Value.ToString()
            strPricw = gvView.Rows(e.RowIndex).Cells(5).Value.ToString()
            strQuan = gvView.Rows(e.RowIndex).Cells(6).Value.ToString()
            MessageBox.Show("You has choosen: " & strID & " | " & strName & " | " & strPricw & " | " & strQuan)
        End If
    End Sub