Forms Data Controls :: Highlight Search Keywords In Gridview?

I build a serach function just using SelectCommand and SelectParameters, i.e.

<asp:SqlDataSource ID="SqlDataSource2" runat="server"
ConnectionString="<%$ ConnectionStrings:mprojectConnectionString %>"
SelectCommand="SELECT * FROM [publication] WHERE ((([character] LIKE '%' + @character + '%') AND ([type] = @type))
OR(([f11623] LIKE '%' + @f11623 + '%') AND ([type] = @type))
OR (([f1character] LIKE '%' + @f1character + '%') AND ([type] = @type))
OR(([nortonoxfordnumber] LIKE '%' + @nortonoxfordnumber + '%') AND ([type] = @type))
OR (([nortonoxfordtext] LIKE '%' + @nortonoxfordtext + '%') AND ([type] = @type)))">
<SelectParameters>
<asp:ControlParameter ControlID="TextBox1" Name="character" PropertyName="Text"
Type="String" />
<asp:ControlParameter ControlID="TextBox1" Name="f11623" PropertyName="Text"
Type="String" />
<asp:ControlParameter ControlID="TextBox1" Name="f1character"
PropertyName="Text" Type="String" />
<asp:ControlParameter ControlID="TextBox1" Name="nortonoxfordnumber"
PropertyName="Text" Type="String" />
<asp:ControlParameter ControlID="TextBox1" Name="nortonoxfordtext"
PropertyName="Text" Type="String" />
<asp:ControlParameter ControlID="DropDownList1" Name="type"
PropertyName="SelectedValue" Type="String" />
</SelectParameters>
</asp:SqlDataSource>

I am also using a dropdown box and a textbox for people to search within a particular area from the dropdown list.

Now, I would like to be able to highlight the keywords in my gridview table. I searched around on the Internet and found a lot of samples, but they are all related to the Gridview <templates>, however, I am using <BoundField> and sqlDataSource.

I just cound not figure out how can I add this highlight function to my current search function?