Grid view can't show result (using QueryExtender) when chosed an other Grid'view page
<p>My page have a EntityDatasource   </p>

<pre><code>&lt;asp:EntityDataSource ID="SearchEntityDataSource" runat="server" 
        ContextTypeName="CallSellSupport.DataAccess.supportCallEntities"   
        EnableFlattening="False"  EntitySetName="Customers" Include="Area" OrderBy="it.CreatedDate DESC" 
        ConnectionString="name=supportCallEntities" DefaultContainerName="supportCallEntities"&gt;
    &lt;/asp:EntityDataSource&gt;
</code></pre>

<p>and QueryExtender</p>

<pre><code> &lt;asp:QueryExtender ID="SearchQueryExtender1" runat="server"  TargetControlID="SearchEntityDataSource"&gt;

           &lt;asp:SearchExpression SearchType="StartsWith" DataFields="Phone"&gt;
                &lt;asp:ControlParameter ControlID="txtPhoneNum" /&gt;
            &lt;/asp:SearchExpression&gt;
             &lt;asp:SearchExpression SearchType="Contains" DataFields="FullName"&gt;
                &lt;asp:ControlParameter ControlID="txtCustomerName" /&gt;
            &lt;/asp:SearchExpression&gt;
    &lt;/asp:QueryExtender&gt;
</code></pre>

<p>and a GridView (allow paging)</p>

<pre><code>&lt;asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" 
        DataKeyNames="CustomerID" DataSourceID="SearchEntityDataSource" 
         AllowPaging="True"  AllowSorting="True" CellSpacing="1" 
         PageSize="7"
</code></pre>

<p></p>

<p>I entered data into texbox, then I clicked button. Gridview display ok :)</p>

<p>But when I chosed Page 2 (or page 3, or page 4), then I enter data into textbox, and now, gridview doesn't display anything data, although I clicked button (many times...)</p>

<p>I think this problem is post back (because I change Gridview's page), but I can't find out a solution.</p>

<p>Hope somebody may help me...</p>

<p>Thanks a lot. </p>
