Question

I have a gridview and sqldatasource.

I want to remove the header text underline but only for some columns not all of them.

How can I do it?

Answer 1

Set autogeneratecolumns="false" and allowsorting="true". Then you will need to define all of the columns you want to display in a <columns> child element to the gridview like so:

<columns>
     <asp:boundfield datafield="Date" headertext="Date" sortexpression="Date"/>
     <asp:boundfield datafield="OtherColumn" headertext="Other Data"/>
</columns>

When you use autogeneratecolumns="true" and allowsorting="true" by default all columns will be sortable. When you explicitly define the columns, those that do not have the sortexpression property set will not be sortable.