How to use a button x:Name or something to indicate button [duplicate]

Question

I have a problem. I have to do app for college, guitar emulator, my idea was to put each fret as a button, and implement the color change function to understand which fret (button) is clamped (pressed)

var button = (Button)sender; _buttonLastPressed = button; var parent = (Grid)button.Parent; var index = parent.Children.IndexOf(strip1_1); var str = Math.Floor((decimal)(index + 1) / 20); for (int i = 0; i < 20; i++) { var element = (Button)parent.Children[i + Convert.ToInt32(str) * 20]; element.Background = Brushes.White; } button.Background = Brushes.Blue;

This option works well, but the problem arose that I do not know how to get some information from the button in order to use it on what sound to play (so that the program understands which button is pressed). I believe that it was possible to somehow use the DataContext, but I cannot imagine in my head how to do it more competently

For the tip, there are six strings, I decided to declare each string as grid, and in each grid there are 20 frets (buttons), you can hold down only one of all 20

XAML:

<Button x:Name="strip1_1" Content="" HorizontalAlignment="Left" Margin="2,1,0,0" VerticalAlignment="Top" Width="22" Height="4" Click="Strip1_Click" BorderBrush="Black"/> <Button x:Name="strip1_2" Content="" HorizontalAlignment="Left" Margin="37,1,0,0" VerticalAlignment="Top" Width="22" Height="4" Click="Strip1_Click" BorderBrush="Black"/>

Are you familiar with the Command property of Button and the ICommand interface? — Standard_101
– Standard_101, Commented May 26, 2021 at 7:56
Could you also mention the XAML part of how you use the <Button/> object? — Standard_101
– Standard_101, Commented May 26, 2021 at 8:00
@Maaz Oh... All 20 buttons in the grid are tied to one function, which is written in the question, so there are practically no differences between them. <Button x:Name="strip1_1" Content="" HorizontalAlignment="Left" Margin="2,1,0,0" VerticalAlignment="Top" Width="22" Height="4" Click="Strip1_Click" BorderBrush="Black"/> <Button x:Name="strip1_2" Content="" HorizontalAlignment="Left" Margin="37,1,0,0" VerticalAlignment="Top" Width="22" Height="4" Click="Strip1_Click" BorderBrush="Black"/> — Axteity
– Axteity, Commented May 26, 2021 at 8:06
I would suggest, as a long term learning feature, reading up about MVVM pattern of programming. Get started here: MVVM Pattern for Xamarin! — Standard_101
– Standard_101, Commented May 26, 2021 at 8:11

Standard_101 · Accepted Answer · 2021-05-26 08:10:11Z

A possible solution could be to use the Click property of each button which references a different method.

<Button Click="DoSomething_OnClick"/>

and in the code-behind:

private void DoSomething_OnClick(object sender, RoutedEventArgs e) { // Your code here }

You could use this to have 20 different methods. This way, you know exactly which button called which method.

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