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item orientation problems in drop down list

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ComboBox

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Jerry asked on 09 Aug 2012, 10:53 PM

horizontal-alignment.PNG

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

3 Answers, 1 is accepted

answered on 13 Aug 2012, 05:35 AM

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.