<asp:GridView ID="GridView1" runat="server" AllowPaging="false" 
         AllowSorting="True" AutoGenerateColumns="False" DataKeyNames="SessionID" 
         DataSourceID="SqlDataSource3" EnableModelValidation="True">
         <Columns>
             <asp:BoundField DataField="NumberDerg" 
                 HeaderText="Номер  на порталі" ReadOnly="True" 
                 SortExpression="NumberDerg">
                 <ItemStyle Width="100px" />
            </asp:BoundField>
             <asp:BoundField DataField="SessionID" HeaderText="Код" 
                 InsertVisible="False" ReadOnly="True" SortExpression="SessionID">
             <ItemStyle HorizontalAlign="Center" />
             </asp:BoundField>
             <asp:TemplateField HeaderText="Предмет " SortExpression="AppTitle">
                 <EditItemTemplate>
                     <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("AppTitle") %>'></asp:TextBox>
                 </EditItemTemplate>
                 <ItemTemplate>
                    <asp:HyperLink ID="HyperLink1" runat="server" 
                                                NavigateUrl='<%# Eval("ApplicationID", "AuctionView.aspx?AppID={0}") %>' 
                                                Text='<%# Eval("AppTitle") %>'></asp:HyperLink>
                 </ItemTemplate>
                 <ItemStyle HorizontalAlign="Center"/>
             </asp:TemplateField>
             <asp:BoundField DataField="NameShort" HeaderText="Зам." 
                 SortExpression="NameShort">
             <ItemStyle HorizontalAlign="Center" Width="150px" />
             </asp:BoundField>
             <asp:BoundField DataField="TimeEntryAppEnd" 
                 HeaderText="Строк закінчення" SortExpression="TimeEntryAppEnd">
             <ItemStyle HorizontalAlign="Center" Width="150px" />
             </asp:BoundField>
             <asp:BoundField DataField="DateTrade" 
                 HeaderText="Дата та час " 
                 SortExpression="DateTrade">
             <ItemStyle HorizontalAlign="Center" Width="150px" />
             </asp:BoundField>
             <asp:BoundField DataField="SessionStateTitile" HeaderText="Статус " 
                 SortExpression="SessionStateTitile">
             <ItemStyle HorizontalAlign="Center" />
             </asp:BoundField>
             <asp:BoundField DataField="MyCount" HeaderText="MyCount" 
                  SortExpression="MyCount" Visible="true">
             <ItemStyle HorizontalAlign="Center" />
             </asp:BoundField>
         </Columns>
     </asp:GridView>

asp:BoundField DataField="MyCount" HeaderText="MyCount" 
                  SortExpression="MyCount" Visible="true">
             <ItemStyle HorizontalAlign="Center" />