c# - C#: is there a way to display result base on user input at the moment

Question

I am working on a unit converting project. The idea is to develop something like google's converter, except it is in windows application form. I want the result to show based on user's input at the moment. that means if user is converting 100cm to m, the result will show 0.01m when 1 is typed in and 1m as he completes the input. Is there a way to doing it? I have been searching in google but all of the helps are on java script. Thanks!

Answer 1

You're looking for the KeyUp event.

Answer 2

使用 textchanged 事件。在此示例中，textbox1 为 cm，textbox2 为 m：

        private void textBox1_TextChanged(object sender, EventArgs e)
        {
            if (textBox1.Text.Length == 0)
                textBox2.Text = "0";
            else
                textBox2.Text = (double.Parse(textBox1.Text) / 100).ToString();
        }