RadCombo Box Opening slowly

[JTI]

Hi,

I am using RadCombo Box in a sharepoint 2010 site page.
The combo box is populated from code behind (Only once when the page loads).
While opening the combo dropdown, it stops for a second and then shows all the items.
I have tried to solve it through CSS changes but not able to solve it completly.

Any help will be appreciated.....:)

[Kalina]

Hi JTI,

Can you explain your implementation in more details?
How many items are in loaded in the control?
Please paste here the RadComboBox markup that you use.

Regards,
Kalina
the Telerik team

[JTI]

- I am using the RadComboBox on a sharepoint page.
- This is populated with data froma list only once for every page load
But when opening the dropdown it stops for a second before showing all items. Please see the code snippet below :

<telerik:RadComboBox ID="ddlEntityType" ExpandAnimation-Type="None" CollapseAnimation-Type="None" runat="server" EmptyMessage="Select a Function"
                        AutoPostBack="true" Width="345px" Height="30px" OnSelectedIndexChanged="ddlEntityType_SelectedIndexChanged">
                    </telerik:RadComboBox>

 - As you can see in the above code i have solved the issue by using the expandAnimation-type attribute.
 - This solves the isuue but loses the animated display so opens like a normal .Net dropdown control.

Is there a way I can have both that is "Dropdown should open without any delay and show all the items at once with animation (opens slowaly)"

[Kalina]

Hi JTI,

Thank you for the sample code provided.
I created a test WebPart project and tried to reproduce the issue - but without success.
On my side RadComboBox opens without delay - please take a look at the demonstration video that I have recorded.
I am attaching here the sample - please download it, add the necessary references, deploy it and give it a try.
Can you modify it in order to reproduce the issue and send it back to us?
Thank you in advance.

Regards,
Kalina
the Telerik team