How can i open a form everytime a textbox is focused?

Question

im developing a keyboard to a touchscreen display, i need to know how can i program a generic code that everytime any textbox is focused, the form(keyboard) opens. I know i could put in the event focus of every single textbox, but i want to do a generic code. Im working with WCE8 and .net compact framework 3.5.

the keyboard is working, i just need to know if there is something i can do to open the form everytime a textbox is focused — Rafael Ferronato, Aug 24 '18 at 12:45

score 2 · Answer 1 · answered Aug 24 '18 at 13:42

2

You could create your own custom control and override the OnGotFocus function

public partial class FocusTextBox : TextBox {
    public FocusTextBox() {}

    protected override void OnGotFocus(EventArgs e) {
        // Your code to open the keyboard here

        base.OnGotFocus(e);
    }
}

answered Aug 24 '18 at 13:42

Syncrow

71
1
4

@RafaelFerronato you use the `FocusTextBox` class instead of `TextBox` class! (you can right click into your `InitializeComponent()` method inside your form's constructor and select `Go To Definition`, there, change `System.Windows.Forms.Controls.TextBox` to `{Namespace}.FocusTextBox`) – Ivan García Topete Aug 24 '18 at 15:29

score 1 · Accepted Answer · answered Aug 24 '18 at 13:49

You can find all the control type textbox in your control and gives them the click event with a foreach, for instance

foreach(Control ctrl in panel1.Controls)
        {
            if(ctrl is TextBox)
            {
                ctrl.Click += new EventHandler(OpenSecondForm_Click); 
            }
        }

private void OpenSecondForm_Click(object sender, EventArgs e)
    {
        Form2 form = new Form2();
        form.Show();
    }

in this way, every time you focused any textbox,it will open a second form, I hope this can help you.

after initialize the form, you can add that code in the constructor after InitializeComponent() or in load event, if you are using winforms or wpf in your keyboard — David Ortega, Aug 24 '18 at 15:40

How can i open a form everytime a textbox is focused?

2 Answers2