title: FIlter expression not working Sqldatasource
body: <p>This is my sqldatasource with filter expression </p>
  
  <pre><code>   &lt;asp:SqlDataSource ID="SqlDataSource1" runat="server" 
                      ConnectionString="&lt;%$ ConnectionStrings:ConnectionString %&gt;" 
                      SelectCommand="SELECT [id], [title], [client], [projectmanager], [project_scope], [project_materials], [project_gating], [project_cavities], [project_file], [project_otherdetails], [priority], [commodity], [status], [start_date], [end_date] FROM [project_details]" 
                      ProviderName="&lt;%$ ConnectionStrings:ConnectionString.ProviderName %&gt;" 
                      EnableCaching="True" CacheDuration="1000" 
  FilterExpression="title= '{2}'"&gt;
  
  
  
   &lt;FilterParameters&gt;
                      &lt;asp:ControlParameter ControlID="DropDownList1" Name="mainsearch" 
                          PropertyName="SelectedItem.Value" /&gt;
                      &lt;asp:ControlParameter ControlID="TextBox2" Name="start_date" 
                          PropertyName="Text" /&gt;
                      &lt;asp:ControlParameter ControlID="TextBox3" Name="end_date" 
                          PropertyName="Text" /&gt;
      &lt;asp:ControlParameter   
  
                                    &lt;/FilterParameters&gt;
  
  
  
      &lt;/asp:SqlDataSource&gt;
  </code></pre>
  
  <p>when i enter the value in Textbox2 it is not working what might be the problem</p>