How to get the name of the textbox which the user types in, in windows form c#

Question

I have over 160 textboxes, each corresponds to the value inside registers in a chip. I want to write the values typed into the textboxes to the corresponding register each time enter is pressed from that particular textbox. Since there are lot of textboxes keydown event is not possible to every textboxes. What should i do here?. How can i get the name of the textbox the user types the data and then pressed the enter , so that i can take the value from that particular box and copy it.

Answer 1

Surely you can hook into the keypress event in the form constructor.

public Form1()
{
    InitializeComponent();
    foreach (Control control in this.Controls)
        if (control is TextBox)
            ((TextBox)control).KeyPress += new KeyPressEventHandler(TextBox_Keypress);
                
}

private void TextBox_Keypress(object sender, KeyPressEventArgs e)
{
    var textbox = sender as TextBox;
    MessageBox.Show(textbox.Name + "has typed a key");
}

Digging Deeper into Children

If you need to fetch textboxes within children PsychoCoders answer can help you.

public IEnumerable<Control> GetAll(Control control, Type type)
{
    var controls = control.Controls.Cast<Control>();

    return controls.SelectMany(ctrl => GetAll(ctrl, type))
                                .Concat(controls)
                                .Where(c => c.GetType() == type);
}

and change your foreach like so;

foreach (Control control in GetAll(this, typeof(TextBox)))
{
   ...
}