<asp:LinkButton ID="delLinkButton" runat="server" OnClientClick='return confirm("確定刪除?")'
        CommandName="del" CommandArgument='<%# Eval("ID") %>'>刪 除</asp:LinkButton>

protected void Repeater1_ItemCommand(object source, RepeaterCommandEventArgs e)
    {
        if (e.CommandName == "del")
        {
            //刪除的方法
        }
    }