item orientation problems in drop down list

[Jerry]

Hi,


Im having a strange problem with the drop down lists where the items in it are being listed in a horizontal format.

This only happens when i first open the control, after closing the control and re opening it, the items are formatted properly with the items being listed vertically.

I don't know why its only this section that causes the problem and why it only happens once.

This is using silverlight 5 and testing the application using IE9.

Any help would be greatly appreciated.


Thanks

[Vladi]

Hi Jerry,

I tried to reproduce the issue but with no success. Could you provide us with more details on your project like code snippets, customized style templates if the project has any or anything that could be related to the issue?

All the best,
Vladi
the Telerik team

[Jerry]

Hey Vladi,

Thanks for your reply,

It is killing me not knowing why this problem arises as it is always only the first time when i open the control, the items shows up in a horizontal manner. After closing the drop down and opening it again, the items show in the correct state (vertically).

I have attached the xaml snippet where i have the combo box.


                                <controls:TabComboBox
                                    Grid.Column="1"
                                    Grid.Row="14"
                                    x:Name="OnCallRostersComboBox"
                                    HorizontalAlignment="Left"
                                    IsEnabled="{Binding IsOnCallDropDownEnabled}"
                                    Visibility="{Binding ShowOnCallSelection, FallbackValue=False,TargetNullValue=False, Converter={StaticResource BoolVisibilityConverter}}"
                                    Width="200"
                                    ItemsSource="{Binding OnCallRosters}"
                                    SelectedValue="{Binding Timesheet.OnCallArrangementId, Mode=TwoWay, ValidatesOnDataErrors=True, NotifyOnValidationError=True, ValidatesOnNotifyDataErrors=True, ValidatesOnExceptions=True}"
                                    DisplayMemberPath="OnCallArrangement.Name"
                                    SelectedValuePath="OnCallArrangementId"
                                  />




Thanks again.

[Vladi]

Hi Jerry,

Thank you for sending the additional information. It seems that you are customizing the RadComboBox control somewhere in your project and without a project that can recreate the issue we can not provide you with appropriate assistance.

Could you open a support ticket and send us a runnable  project there that demonstrates the problem? Thanks in advance.

All the best,
Vladi
the Telerik team