Gridview Delete?

[bdog4]

I'm a bit new to asp.net and I'm trying to do very simple delete from
a grid view but everytime I click on the delete link for the row it
the page reloads and of course my row is still there. What am I
missing here?

<%@ Page Language="VB" MasterPageFile= "~/XeroxScan.maste r"
AutoEventWireup ="false" CodeFile="Files .aspx.vb" Inherits="Files "
title="Untitled Page" %>
<asp:Content ID="Content1" ContentPlaceHol derID="Main" Runat="Server">
&nbsp;<asp:Grid View ID="GridView1" runat="server"
AutoGenerateCol umns="False" DataSourceID="S qlDataSource1"
EmptyDataText=" There are no data records to display."
Width="719px">
<Columns>
<asp:BoundFie ld DataField="Clie ntCode"
HeaderText="Cli entCode" SortExpression= "ClientCode " />
<asp:BoundFie ld DataField="Desc ription"
HeaderText="Des cription" SortExpression= "Descriptio n" />
<asp:HyperLinkF ield DataNavigateUrl Fields="FileID"
DataNavigateUrl FormatString="E ditEntry.aspx?F ileID={0}"
HeaderText="Edi t" Text="Edit" />
<asp:TemplateFi eld ShowHeader="Fal se" HeaderText="Del ete">
<ItemTemplate >
<asp:LinkButt on ID="LinkButton1 " runat="server"
CausesValidatio n="False" CommandName="De lete"
OnClientClick=' return confirm("Are you sure you
want to delete this entry?");'
Text="Delete" />
</ItemTemplate>
</asp:TemplateFie ld>
</Columns>
</asp:GridView>
<asp:SqlDataSou rce ID="SqlDataSour ce1" runat="server"
ConnectionStrin g="<%$ ConnectionStrin gs:WCMWebConnec tionString1 %>"
ProviderName="< %$
ConnectionStrin gs:WCMWebConnec tionString1.Pro viderName %>"
SelectCommand=" SELECT [FileID], [ClientCode], [Description],
[Client] FROM [StandFiles] ORDER BY [ClientCode]"
DeleteCommand=" DELETE FROM [StandFiles] WHERE [FileID] = @FileID"
InsertCommand=" INSERT INTO [StandFiles] ([ClientCode], [Description],
[Client]) VALUES (@ClientCode, @Description, @Client)"
UpdateCommand=" UPDATE [StandFiles] SET [ClientCode] = @ClientCode,
[Description] = @Description, [Client] = @Client WHERE [FileID] =
@FileID">
<DeleteParamete rs>
<asp:Paramete r Name="FileID" Type="Int32" />
</DeleteParameter s>
<UpdateParamete rs>
<asp:Paramete r Name="ClientCod e" Type="String" />
<asp:Paramete r Name="Descripti on" Type="String" />
<asp:Paramete r Name="Client" Type="String" />
<asp:Paramete r Name="FileID" Type="Int32" />
</UpdateParameter s>
<SelectParamete rs>
</SelectParameter s>
<InsertParamete rs>
<asp:Paramete r Name="ClientCod e" Type="String" />
<asp:Paramete r Name="Descripti on" Type="String" />
<asp:Paramete r Name="Client" Type="String" />
</InsertParameter s>
</asp:SqlDataSour ce>
<br />
</asp:Content>