Gridviw - my rowCommand does not run

[simsen]

Hi, I have a gridview, with a rowcommand. When I try to debug I can see it dosn't call the rowCommand (DeleteImage) Please can anyone tell me, why it does not run that rowCommand? my code:

<asp:GridView ID="grdImages" runat="server" AutoGenerateColumns="false" 
                            AutoGenerateEditButton="false" BorderColor="Transparent" 
                        CellPadding="2" GridLines="vertical" 
                            CellSpacing="0" DataKeyNames="filename"
                            ForeColor="Black"
                            ShowHeader="false" onsorting="grdImages_Sorting" 
                        onrowcommand="grdImages_RowCommand">
                        <RowStyle BorderStyle="Dotted" />
                        <Columns>            
                            <asp:TemplateField>
                                <ItemTemplate>
                                    <img src='<%#Eval("imgImage")%>' alt="Image" width="50px" height="50px" />
                                </ItemTemplate>
                            </asp:TemplateField>
                            <asp:TemplateField>
                                <ItemTemplate>
                                    <asp:Label ID="filename" runat="server" Text='<%#Eval("filename")%>'></asp:Label>
                                </ItemTemplate>
                            </asp:TemplateField>
                            <asp:TemplateField>
                                <ItemTemplate>                               
                                    <asp:Button CssClass="buttonsSmall" ID="btnDeleteImage" OnClientClick="return confirm('Billedet vil ikke længere kunne vises på livesitet. Er du sikker på, du vil slette billedet?');" Font-Size="8pt" runat="server" Text="Slet" CommandName="DeleteImage" CommandArgument='<%# Eval("filename")%>'  />
                                </ItemTemplate>
                                <HeaderStyle />
                                <ItemStyle HorizontalAlign="Center" />
                            </asp:TemplateField>
                        </Columns>
                        <RowStyle CssClass="rowcolor" />
                        <AlternatingRowStyle CssClass="alternatingrowcolor" />        
                    </asp:GridView>


protected void grdImages_RowCommand(object sender, GridViewCommandE

[simsen]

DOHHHHHHH..... In my pageload event I updated the gridview without a (!IsPostBack).........