how to pass datasource to gridview using loop and condition

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C#5.0

ASP.NET4

i am using gridview control in my web application,and fill it up using following code.

protected void Page_Load(object sender, EventArgs e)
        {
            if (!this.IsPostBack)
            {
                this.BindGrid();
            }
        }

        private void BindGrid()
        {
            Entities entities = new Entities();
           
                GridView1.DataSource = from customer in entities.DutyPoints.ToList()
                                       select customer;
            
                GridView1.DataBind();
           
        }

and aspx code is

<asp:TemplateField HeaderText="Name" ItemStyle-Width="150">
        <ItemTemplate>
            <asp:Label ID="lblName" runat="server" Text='<%# Eval("Description") %>'></asp:Label>
        </ItemTemplate>
        <EditItemTemplate>
            <asp:TextBox ID="txtName" runat="server" Text='<%# Eval("Description") %>'></asp:TextBox>
        </EditItemTemplate>
<ItemTemplate>
            <asp:Label ID="lblEmp" runat="server" Text='<%# Eval("Employee") %>'></asp:Label>
        </ItemTemplate>
<asp:dropdownlist id="Employee"></asp:dropdownlist>
    </asp:TemplateField>

it return all list ok,but my requirement is that against each DutyPoint ,there is may be two or three Employees to work on,i want description to display one time if there are more than one employee at that point?

dutyPoint    Employee
xxx           Emplist
              Emplist
              Emplist

how it is possible?