RowCommand กับ RowDataBound นี่ต่างกันยังงัยคะ พอดีเพิ่งหัดเขียนค่ะ เลยแยกไม่ออกว่า rowcommand กับ rowdatabound นี่ต่างกันยังงัย

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"
        CssClass="GridView1" DataKeyNames="model,addr,target,timest" DataSourceID="SqlDataSource1"
        ForeColor="#333333" OnRowCommand="GridView1_RowCommand" ShowFooter="True">
        <RowStyle BackColor="#EFF3FB" />
        <Columns>
            <asp:BoundField DataField="addr" HeaderText="addr" ReadOnly="True" SortExpression="addr" />
            <asp:BoundField DataField="model" HeaderText="model" ReadOnly="True" SortExpression="model" />
            <asp:BoundField DataField="shiftx" HeaderText="shiftx" ReadOnly="True" SortExpression="shiftx" />
            <asp:TemplateField HeaderText="Date" SortExpression="timest">
                <ItemTemplate>
                    <asp:Label ID="Label1" runat="server" Text='<%# Bind("timest", "{0:dd/MM/yyyy  HH:mm:ss}" )%>'></asp:Label>
                </ItemTemplate>
            </asp:TemplateField>
            <asp:BoundField DataField="statusx" HeaderText="statusx" ReadOnly="True" SortExpression="statusx" />
            <asp:BoundField DataField="target" HeaderText="target" ReadOnly="True" SortExpression="target" />
            <asp:BoundField DataField="actual" HeaderText="actual" ReadOnly="True" SortExpression="actual" />
            <asp:TemplateField HeaderText="ng" SortExpression="ng">
                <ItemTemplate>
                    <asp:LinkButton ID="LinkButtonNg" runat="server" CommandName="Detail" Text='<%# Bind("ng") %>'
                        ToolTip="Show Detail Ng" CommandArgument='<%# Eval("model")%>'></asp:LinkButton>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
        <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
        <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
        <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
        <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
        <EditRowStyle BackColor="#2461BF" />
        <AlternatingRowStyle BackColor="White" />
    </asp:GridView>

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 Protected Sub GridView1_RowCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles GridView1.RowCommand
  
 If (e.CommandName = "Detail") Then
lblAddr.Text = GridView1.Rows(e.CommandArgument.ToString).Cells(0).Text.ToString
lblModel.Text = GridView1.Rows(e.CommandArgument.ToString).Cells(1).Text.ToString
            lblDatex.Text = GridView1.Rows(e.CommandArgument.ToString).Cells(3).Text.ToString
            lblTarget.Text = GridView1.Rows(e.CommandArgument.ToString).Cells(5).Text.ToString
end if