Hiding gridview column for particular condition

Question

Hiding gridview column for particular condition

Hello everyone, I need your appreciated help.

Between the columns of my GridView I have this field:

<asp:BoundField DataField="DIST-V" DataFormatString="{0:#,##0.###}"
HeaderText="Dist (n.)" />

I need see it only when the condition is verified in the my query Sql Server 2005.

If the column DIST-V is selected in my query I need see the value of recordset DIST-V else I don't see the column DIST-V in my Gridview.

Can you help me?
Thank you in advance.

Chevy