data grid dont show at all when i debug

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C#

hi all
please help me
i am new to asp.net
i have a webform that i found and when i was trying to rebuild it it didnt work well
the data grid dont show at all when i debbug
can any one tell me what is wrong in this code

<td colspan="7">
                <asp:GridView ID="grdCruises" runat="server" DataKeyNames="CruisesID"
                    AllowSorting="True" Width ="92%" AutoGenerateColumns="False" AllowPaging="True" PageSize="15"
                    OnSorting="grdCruises_Sorting" OnRowEditing="grdCruises_RowEditing"  OnRowDeleting="grdCruises_RowDeleting"
                    OnPageIndexChanging="grdCruises_PageIndexChanging"
                    onselectedindexchanged="grdCruises_SelectedIndexChanged"
                    BackColor="White" BorderColor="#3366CC" BorderStyle="None" BorderWidth="1px" CellPadding="4" >

                    <FooterStyle BackColor="#99CCCC" ForeColor="#003399" />
                    <RowStyle BackColor="White" ForeColor="#003399" />