try like this
<asp:TemplateField HeaderText="Name" HeaderStyle-Font-Size ="Medium" HeaderStyle-Width ="150px" HeaderStyle-Font-Names ="Microsoft Sans Serif" >
<ItemTemplate>
<div style ="width :150px;font-size :medium ;font-family :Microsoft Sans Serif ">
<asp:Label ID="lblID" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"Name") %>'></asp:Label>
</div>
</ItemTemplate>