Combobox don't work as needed

[CreateLab]

1. "Setting IsSelected on ComboBoxItem from XAML doesn't select the element"
2. "ComboBox without selected item has small height"

                     <StackPanel>
                        <ComboBox>
                            <ComboBoxItem IsSelected="True" Content="Editable #1" />
                            <ComboBoxItem Content="Editable #2" />
                        </ComboBox>
                        <Button Content="Test button" />
                        <ComboBox>
                            <ComboBoxItem IsSelected="True" Content="Editable #1" />
                            <ComboBoxItem Content="Editable #2" />
                        </ComboBox>
                    </StackPanel>
                    <ComboBox IsEnabled="False">
                        <ComboBoxItem IsSelected="True" Content="Disabled #1" />
                    </ComboBox>
                    <ComboBox IsEnabled="False">
                        <ComboBoxItem IsSelected="True" Content="Disabled #1" />
                    </ComboBox>
                    <TextBox Text="Plain TextBox" />

[waliarubal]

I have also seen this issue in my app.

[daikerSec]

I have also seen this issue in my app.

[grokys]

I'm currently rewriting our selection logic, I will fix this in the process. In the meantime, try setting SelectedIndex on the ComboBox instead of IsSelected on the item.

[grokys]

Also: point 2 should have been fixed by #3528

[grokys]

Should be fixed now.

[anthonyapra]

Hello, I'm still having this issue (about the isSelected property) where comboBoxItem is not selected by default until you click on the combobox. Any news about it?