Question

Based on what I could glean from Freeman’s book “Metro Revealed” (which, BTW, is the best of those available so far, albeit weighing in at less than 100 pages), I’m trying to implement a settings flyout (popup).

I have this pertinent code:

The user control that has/is the popup:

<UserControl
    x:Class="TimeAndSpaceLines.View.TSLsSettings"
    . . .
    <Popup x:Name="popupSectionName" IsLightDismissEnabled="True" >
    . . .
    </Popup>
</UserControl>

The “main” page’s xaml:

<common:LayoutAwarePage
    x:Name="pageRoot"
    . . .
    xmlns:settingsflyout="using:TimeAndSpaceLines.View"
    . . .
        </Grid>
        <settingsflyout:TSLsSettings x:Name="hubPageSettingsFlyout"/>
        <VisualStateManager.VisualStateGroups>
    . . .

The “main” page’s pertinent “code-behind”:

public ItemsPage()
{
    InitializeComponent();
    SettingsPane.GetForCurrentView().CommandsRequested += OnSettingsPaneCommandRequested;
}

private void OnSettingsPaneCommandRequested(SettingsPane sender, SettingsPaneCommandsRequestedEventArgs args)
{
    // Add the commands one by one to the settings panel
    args.Request.ApplicationCommands.Add(new SettingsCommand("commandSetSection1Name",
                                                            "Change the name of Section 1", SetAndSaveSectionNames));
. . .        
}

However, when I try to open it this way:

private void SetAndSaveSectionNames(IUICommand command)
{
    TimeAndSpaceLines.View.TSLsSettings.popupSectionName.IsOpen = true;
    . . .
}

I’m greeted with:

An object reference is required for the non-static field, method, or property
'TimeAndSpaceLines.View.TSLsSettings.popupSectionName'

and:

'TimeAndSpaceLines.View.TSLsSettings.popupSectionName' is inaccessible due to its protection level

Yet popupSectionName is not a class, and the class in which it resides is public. What should I do?

Answer 1

Try this from “main” page’s pertinent “code-behind”:

var myPopUp = (PopUp)hubPageSettingsFlyout.FindName("popupSectionName");

This will works!