ItemStyle-Wrap
Attribute can work for you.
By setting it's value to
True
contents will be automatically wrapped if it exceeds then size of cell.
E.G
<asp:GridView ID="gv1" runat="server">
<Columns>
<asp:BoundField ItemStyle-Wrap="true" DataField="SomeField" />
</Columns>
</asp:GridView>
Please
vote and
Accept Answer if it Helped.