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I am wondering why action "OnKeyDown" is not working properly.
When I use this class the calculations of my program goes wierd with "NaN" besides a concrete number.
How to make any key down calculate price?
Do you make custom control and OnKeyDown OnKeyDown visual method ?
Could you mind share your code that you have used for listen OnKeyDown action?
@Nico Zhu (Shanghai Wicresoft Co,.Ltd.)
private void KeyDown(object sender, Windows.UI.Xaml.Input.KeyRoutedEventArgs e)
{
calculate();
}
private void calculate()
{
to_square_meter = price_square_meter.Value;
zero_three = (width.Value * height.Value) / 1000000;
cprice_net.Value = price_net.Value * quantity.Value;
var price_net_value_change = price_net.Value;
price_net.Text = String.Format("{0:0.00}", price_net_value_change);
gross calculation = price_net.Value * 1.23;
price_gross_text.Text = "GROSS price: " + String.Format("{0:0.00}", gross_calculation) + "euro";
}
During the testing, if the control has been focused, KeyDown will be invoked, please check if it was focused before press keyboard.
@Nico Zhu (Shanghai Wicresoft Co,.Ltd.)
Can you elaborate? I am a beginner, what do you mean by that?
@Nico Zhu (Shanghai Wicresoft Co,.Ltd.)
Do you mean System.Boolean IsFocusedEngaged?
It can't be triggered, even if I trigger it my app crashes.
Ok, could tell which control KeyDown event that you want listen? could you share your xaml code ?
@Nico Zhu (Shanghai Wicresoft Co,.Ltd.)
<muxc:NumberBox x:Name="height" HorizontalAlignment="Left" Margin="6,163,0,0" VerticalAlignment="Top" Width="76" Foreground="#FF200493" ValueChanged="height_vc" Grid.Row="2" Grid.Column="1" KeyDown="test"/>
not much to be honest, should I have something there?
If I check "IsFocusEngaged" it deslects back but it puts code inside xaml object, andy my app crashes with it.
KeyDown="test" could be triggered when the cursor flash in the box.
no, my cursor hoover over the box when typing and still not working... :/
@Nico Zhu (Shanghai Wicresoft Co,.Ltd.)
That's interesting, can you make blank sample test it, I'm afraid other control has handled this event.
could you mind share a sample that could reproduce this problem ?
Thank you fore help so far.
I ma istalling VS 2022P maybe that will work on it...
@Nico Zhu (Shanghai Wicresoft Co,.Ltd.)
Ok. please let me know the test result.
@Nico Zhu (Shanghai Wicresoft Co,.Ltd.)
It didn\t solve my problem.
When I will have more of free time I will share my code with you.
thanks!
My project is on GitHub now. I need your nickname to make you a collaborator cause I made it private.
@Nico Zhu (Shanghai Wicresoft Co,.Ltd.)
Due to our policy, it is not suitable to make a forum support a collaborator of your private project.
We don't want to check your whole project because it might contain your private information. What we need is just a minimal, reproducible example. Please create a blank project. Then just add the necessary code which is used to reproduce the issue inside the project. Then you could share the sample in public with us.
@Nico Zhu (Shanghai Wicresoft Co,.Ltd.)
I don't know how i managed to make UI.Xaml Nuget for NumbeBox working in my original project, cause I made new project to show you the error and my number box won't show at all now... :/
@Nico Zhu (Shanghai Wicresoft Co,.Ltd.)
I figured out another way to do my program.
Can you show me how to make periodic event - every 1 second do something?
Can you show me how to make periodic event - every 1 second do something?
Sure, you could use DispatcherTimer to approach, here is sample code.
dispatcherTimer = new DispatcherTimer();
dispatcherTimer.Tick += dispatcherTimer_Tick;
dispatcherTimer.Interval = new TimeSpan(0, 0, 1);
For more please refer official document.
@Nico Zhu (Shanghai Wicresoft Co,.Ltd.)
My project doesn't recognize "Threading" and "dispatcherTimer".
I used System.Threading and System.Timers and it didn't help.
It's my fault, I have updated the document, please use DispatcherTimer under Windows.UI.Xaml namespace.
Thanks @Nico Zhu (Shanghai Wicresoft Co,.Ltd.)
I will check it out as soon as I return home.
Does it works, Any updates for this topic.
OK @Nico Zhu (Shanghai Wicresoft Co,.Ltd.)
Back to the problem.
I thought with 2022 or Win11 would fix the issues but it didn't.
I was missing namespace - I cleaned up my code and it removed Input asset - that's why it didn't work.