title: Comboboxes unexpectedly automatically closing when mouse is released
body: <p>I've stumbled upon a phenomenon which I can't explain myself and I'm interested in why it is happening. I hope someone can explain me the reason and also how to get rid of this phenomenon:</p>
  
  <p>I have created a few pages for the application and then a search page. So far so good. Whenever I tried to click on the combobox itself it opened normally, but as soon as I released the mousebutton it closed again. Except when I moved the mouse outside of the combobox area and THEN released it. The only thing out of the ordinary I saw there was that the focus was reset automatically to the last text-field before the combobox. </p>
  
  <p>The combobox itself was a normal html combobox while the textbox itself was created with Html.TextBox("search")  I also tried to change the namings in case I overlooked something in javascript but no changes. </p>
  
  <p>I then tried the following:</p>
  
  <pre><code> @Html.TextBox("search")
  
  
  &amp;nbsp;&amp;nbsp;Kategorie  @Html.DevExpress().ComboBox(
                      settings =&gt; {
                          settings.Name = "PrductCategory";
                          settings.ControlStyle.CssClass = "select";
                          settings.Width = 300;
                          settings.SelectedIndex = 0;
                          settings.Properties.DropDownStyle = DevExpress.Web.ASPxEditors.DropDownStyle.DropDown;
                          settings.Properties.IncrementalFilteringMode = DevExpress.Web.ASPxEditors.IncrementalFilteringMode.Contains;
                          settings.Properties.TextField = "Name";
  
                          settings.Properties.DisplayFormatInEditMode = false;
                          settings.Properties.Native = false;
                          settings.Properties.TextFormatString = "{0}";
                          settings.Properties.DisplayFormatString = "{0}";
                          settings.Properties.ValueField = "Id";
                          settings.Properties.ValueType = typeof(int);
                      }
    ).BindList(Categories).GetHtml()
  </code></pre>
  
  <p>This behaved as it should have the whole time (although the combobox was horribly formated. As I did not find out how to format it to look like a "normal html" combobox I decided to try the native mode but more to that below). When I set the native mode to true, the same phenomenon happened again (with false again it behaved normal). 
  After a few hours of looking through tutorials and docs I'm still at a complete loss (especially as I didn't find any setfocus commands being used). </p>
  
  <p>So my question is:
  Does anyone have any clue as to why that could happen and how to stop this phenomenon from happening?</p>
  
  <p>Tnx</p>
  
  <p><em><strong>Remarks:</em></strong></p>
  
  <p>When in native mode and I switch via tab onto the combobox I can go through the list as normal (with the arrow keys), but I still can't open the combobox as it again closes automatically and the focus is reset onto the textbox ("search") as in all other cases (aside from native=false).</p>
  
  <p>When native mode is set to false and I click on the combobox, then the focus is lost (and set to the text field before the combobox [and it's textfield] for under 1 second and then set to the combobox while the combobox does NOT close).</p>