How to pop up a modal UWP dialog that allows the user to provide a string input

Question

I have a UWP UI to which I need to add a modal pop-up that allows the user to provide a string input. How would I do that? I have found widgets like Windows.Security.Credentials.UI. CredentialPicker but nothing for plain strings.

Answer 1

Hello, Welcome to Microsoft Q&A!

There is no built-in control like that. You might need to create a "string picker" using ContentDialog by yourself. What you just need to put a TextBox inside the ContentDialog to get user input. I've made a simple one and you could refer to it: Xaml:

   <ContentDialog x:Name="termsOfUseContentDialog"
                       Title="Title"
                       PrimaryButtonText="OK"
                       PrimaryButtonClick="termsOfUseContentDialog_PrimaryButtonClick"
                       CloseButtonText="Cancel">
            <Grid>
                <Grid.RowDefinitions>
                    <RowDefinition Height="Auto"/>
                    <RowDefinition Height="*"/>
                </Grid.RowDefinitions>
                <TextBlock Text="This is meesage" Grid.Row="0" Margin="5"/>
                <TextBox x:Name="InputBox" Width="350" Height="32" Grid.Row="1" Margin="5" PlaceholderText="URL"/>
            </Grid>
        </ContentDialog>

Code-behind:

 public MainPage()
{
    this.InitializeComponent();
    this.Loaded += MainPage_Loaded;
}

private async void MainPage_Loaded(object sender, RoutedEventArgs e)
{
    await termsOfUseContentDialog.ShowAsync();
}

private void termsOfUseContentDialog_PrimaryButtonClick(ContentDialog sender, ContentDialogButtonClickEventArgs args)
{
    var inputstring = InputBox.Text;
}

How it looks like:

Thank you.

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