UWP C# Yes/No pop-up window and one more thing.

Question

Greetings and thank you guys for help so far...

Today I am facing two another issues.

1. I want to make a pop-up window with yes/no option, and then use the selection into a code.
2. Another thingy is I am using a NuGet for Number boxes, cause Visual Studio 2022 is lack of it, or am I missing something? And the problem is that this NuGet isn't perfect, in a matter of fact it is really bugged. Is there, a way to find a perfect working box with values only, for calculations?

Answer 1

Using NumberBox directly doesn't seem to meet your needs.
Use Regex like this in the TextBox to delete the character when the user enters non-numeric character.

Page.xaml

 <TextBox TextChanged="TextBox_TextChanged" />  

Page.xaml.cs

private void TextBox_TextChanged(object sender, TextChangedEventArgs e)  
    {  
        var textbox = (TextBox)sender;  
        if (!Regex.IsMatch(textbox.Text, "^\\d*\\.?\\d*$") && textbox.Text != "")  
        {  
            int txtPos = textbox.SelectionStart - 1;  
            textbox.Text = textbox.Text.Remove(txtPos, 1);  
            textbox.SelectionStart = txtPos;  
        }       
    }  

Answer 2

Hello @VoyTec
Welcome to Microsoft Q&A!

1. I want to make a pop-up window with yes/no option, and then use the selection into a code.

It is recommended to use MessageDialog Class, which can achieve your needs.

Page.xaml

    <Button Content="Button" Margin="694,478,0,0" VerticalAlignment="Top" Click="Button_Click" Height="104" Width="170"/>  
    <TextBlock x:Name="tb"  Margin="203,182,203,649" FontSize="20"/>  

Page.xaml.cs

   private void Button_Click(object sender, RoutedEventArgs e)  
    {  
        this.tb.Text = "";       
        ShowMessageDialog();  
           
    }  

    private async void ShowMessageDialog()  
    {  
        var msgDialog = new Windows.UI.Popups.MessageDialog("I am a reminder") { Title = "Tip title" };  
        msgDialog.Commands.Add(new Windows.UI.Popups.UICommand("OK", uiCommand => { this.tb.Text = $"You click：{uiCommand.Label}"; }));  
        msgDialog.Commands.Add(new Windows.UI.Popups.UICommand("Cancel", uiCommand => { this.tb.Text = $"You click：{uiCommand.Label}"; }));  
        await msgDialog.ShowAsync();  
    }  

2. And the problem is that this NuGet isn't perfect, in a matter of fact it is really bugged. Is there, a way to find a perfect working box with values only, for calculations?

Are you using the NumberBox of WInUI? What specific problems did you encounter during use?

Thank you.
Junjie