kylin

 class InputBox
        {
            public static string Show(string title, string promptText)
            {
                string value = "";
                var label = new Label()
                {
                    Text = promptText,
 
                };
                label.SetBounds(9, 20, 280, 13);
                var textBox = new TextBox();
                textBox.SetBounds(12, 36, 280, 20);
                var buttonOk = new Button()
                {
                    Text = "OK",
                    DialogResult = DialogResult.OK,
                };
                buttonOk.SetBounds(140, 72, 75, 23);
                var buttonCancel = new Button()
                { 
                    Text = "Cancel",
                   DialogResult = DialogResult.Cancel,
                };
                buttonCancel.SetBounds(220, 72, 75, 23);
                var form = new Form()
                {
                    Text = title,
                    FormBorderStyle = FormBorderStyle.FixedDialog,
                    MinimizeBox = false,
                    MaximizeBox = false,
                    ClientSize = new Size(300, 100),
                    StartPosition = FormStartPosition.CenterScreen,
                };
                form.Controls.AddRange(new Control[] { textBox, label, buttonOk, buttonCancel });
           
                if (form.ShowDialog() == DialogResult.OK)
                {
                    value = textBox.Text;
                }
                return value;
            }
        }

  string msg = InputBox.Show("test", "Message");
   MessageBox.Show(msg);