Q:

How to increase the height of DevExpress ComboBox droplist

I am displaying a combo box with facilities. There are a large number of facilities overall.
I would like to show a larger group of them. Currently the combo box only has about 10 and then the user has to scroll for more. How can I show the combo box as a larger group at the first?
<td>
   <div>
      <dx:ASPxLabel ID="ASPxLabel4" runat="server" Text="Facility:">
      </dx:ASPxLabel>
      <dx:ASPxComboBox ID="cbFacility" runat="server" ValueType="System.String" 
         Width="300px" EnableViewState="true"  
         onselectedindexchanged="cbFacility_SelectedIndexChanged"  AutoPostBack="true" >
      </dx:ASPxComboBox>
   </div>
</td>
</tr>

A:

Have you tried setting the ASPxComboBox.DropDownRows property to something larger than 10?
See this Q&A over at DevExpress http://www.devexpress.com/Support/Center/Question/Details/Q353996
From the answer

...you can manage the drop-down window height by using either the
  ASPxComboBox.DropDownHeight or ASPxComboBox.DropDownRows property.

