Sure thing. I figure my problems are so elementary that others already know but happy to do that. I had tried this several times and it did not work and then the last time I did it, it did work. So some step I took must have been different.
I am using one text box, though you can use one for each field if you want to set it up that way.
I found the solution playing with the gridview control. I never read anywhere that you could set up your sql statement with controls through that wizard. Discovered it by accident.
edit: I almost forgot to mention, after the gridview built it using AND, I edited it in the page and changed AND to OR. I don't think it lets you use OR in the wizard.
<ContentTemplate>
Searching: <asp:Label ID="Label1" runat="server" Text="Label" ></asp:Label>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
DataSourceID="SqlDataSource1" CellPadding="4" ForeColor="#333333"
GridLines="None">
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
<Columns>
<asp:BoundField DataField="Title" HeaderText="Title" SortExpression="Title" />
<asp:BoundField DataField="ISBN" HeaderText="ISBN" SortExpression="ISBN" />
<asp:BoundField DataField="Author" HeaderText="Author"
SortExpression="Author" />
<asp:BoundField DataField="Category" HeaderText="Category"
SortExpression="Category" />
</Columns>
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<EditRowStyle BackColor="#999999" />
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:ASPNETDBConnectionString6 %>"
SelectCommand="SELECT [Title], [ISBN], [Author], [Category] FROM [au_Products] WHERE (([Title] LIKE '%' + @Title + '%') OR ([ISBN] LIKE '%' + @ISBN + '%') OR ([Author] LIKE '%' + @Author + '%') OR ([Category] LIKE '%' + @Category + '%'))">
<SelectParameters>
<asp:ControlParameter ControlID="txtSearch" DefaultValue="%txtSearch.Text"
Name="Title" PropertyName="Text" Type="String" />
<asp:ControlParameter ControlID="txtSearch" DefaultValue="%txtSearch.Text"
Name="Author" PropertyName="Text" Type="String" />
<asp:ControlParameter ControlID="txtSearch" DefaultValue="%txtSearch.Text"
Name="ISBN" PropertyName="Text" Type="String" />
<asp:ControlParameter ControlID="txtSearch" DefaultValue="%txtSearch.Text"
Name="Category" PropertyName="Text" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
<asp:TextBox ID="txtSearch" runat="server"></asp:TextBox>
<asp:Button ID="btnSearch" runat="server" Text="Search" />
</ContentTemplate>
This was built with the GridView control wizard. So its all in the main aspx page not the code behind.

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