Namespace name "DataView" could not be found.

I am trying a different approach to my issue.

How do I resolve this error -  "Namespace name "DataView" could not be found."

 <asp:TextBox runat="server" ID="txtAuthors" Text='<%# Bind("AuthorName") %>' />
        <asp:ImageButton runat="server" ID="btnFindAuthors"  OnClick="btnFindAuthors"/>
<asp:SqlDataSource runat="server" ID="sqlAuthors" ConnectionString="<%$ ConnectionStrings:Libros %>" ProviderName="<%$ ConnectionStrings:Libros.ProviderName %>" 
        SelectCommand="SELECT * FROM AuthorNames ORDER BY AuthorName" 
        InsertCommand="GET_AuthorNames" InsertCommandType="StoredProcedure">
            <asp:ControlParameter ControlID="txtAuthorName" Name="authorname" />

     <asp:GridView runat="server" ID="gvAuthors" DataSourceID="sqlAuthors" DataKeyNames="AuthorID" AutoGenerateColumns="false">
                <asp:HyperLinkField HeaderText="Author Name" DataNavigateUrlFormatString="~/Author_Details.aspx?id={0}" DataNavigateUrlFields="AuthorID" DataTextField="AuthorName" />
                <asp:BoundField DataField="AuthorID" HeaderText="AuthorID" Visible = "False" />

Open in new window

 protected void btnFindAuthors(Object sender, EventArgs e)
        DataView DV = new DataView(authorid);
        DV.RowFilter = string.Format("AuthorName LIKE '%{0}%'", txtAuthorName.text);
        gvAuthors.DataSource = DV;

Open in new window

My .axms page does include this:
using System.Data;  

Open in new window

Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Jacques Bourgeois (James Burger)PresidentCommented:
Try specifying the namespace in your declaration:

System.Data.DataView DV = new System.Data.DataView(authorid);

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
programmherAuthor Commented:
This resolved the error:  <%@ Import Namespace="System.Data" %>
programmherAuthor Commented:
I used both solutions and they resolved the error.  All points awadred to JamesBurger
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft Development

From novice to tech pro — start learning today.