Textbox to allow input to set currency when form is open

Question

For example, the letter G would choose GBP, letter U would choose USD etc.

I am trying to allow users to choose their currency when the form is open as shown below:

    private void Ccy_Click(object sender, EventArgs e)
    {
        baseCcy1.Visible = true;
        baseCcy1.Focus();

        CcyForm c = new CcyForm((Button)sender, MousePosition.X, MousePosition.Y, _Ccy);
        c.ShowDialog();

        setBuySellButtons();
    }

However, the textbox only focuses once the form is closed. It does not allow me to type in the textbox when the CcyForm is open. I have tried the async/await method with Task.delay, but this did not help. I do not wish to put the textbox in the CcyForm, but rather, be visible when form is open, and invisible when it is not.

How can I allow users to type in the textbox when the CcyForm is open? Thanks in advance!

Answer 1

You should call c.Show(this);. That will create an owned form or modeless dialogue. That is a form that will always remain in front of its caller but will not block access to it. An example of an owned form is the VS Find & Replace dialogue.

baseCcy1.Show();

var c = new CcyForm((Button)sender, MousePosition.X, MousePosition.Y, _Ccy);

c.Show(this);
Activate();
baseCcy1.Select();