Question

I have a ComboBox with the values 1..21

When I drop down the comboBox, number 1 (item 0) is enabled, but all the other items are grayed out, and I can’t select any of them. In fact, I can only see their values when scrolling through the list – otherwise they are completely transparent.

Here is my winrt-xmal:

            <ComboBox x:Name="cmbxInitialMapZoomSetting" Grid.Row="1" Grid.Column="1" Height="32" Margin="4" Width="120" HorizontalAlignment="Left" SelectionChanged="CmbxInitialMapZoomSetting_OnSelectionChanged">
                <Button Content="1"/>
                <Button Content="2"/>
                <Button Content="3"/>
        . . .
                <Button Content="19"/>
                <Button Content="20"/>
                <Button Content="21"/>
            </ComboBox>

…and here is the related code:

private void CmbxInitialMapZoomSetting_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
{
    ApplicationData.Current.LocalSettings.Values["MapZoomSetting"] = cmbxInitialMapZoomSetting.SelectedValue;
}

Answer 1

Is there a reason you are putting Buttons in ComboBox? You could use ComboBoxItems instead:

<ComboBox x:Name="cmbxInitialMapZoomSetting" Height="32" Margin="4" Width="120" HorizontalAlignment="Left" SelectionChanged="CmbxInitialMapZoomSetting_OnSelectionChanged">
    <ComboBoxItem>1</ComboBoxItem>
    <ComboBoxItem>2</ComboBoxItem>
    <ComboBoxItem>3</ComboBoxItem>
    <ComboBoxItem>4</ComboBoxItem>
    <ComboBoxItem>5</ComboBoxItem>
</ComboBox>

You only need a minor modification of your event handler to make this work:

private void CmbxInitialMapZoomSetting_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
{
    ApplicationData.Current.LocalSettings.Values["MapZoomSetting"] = (cmbxInitialMapZoomSetting.SelectedValue as ComboBoxItem).Content.ToString();
}