Quasar/Server/Core/Misc/InputBox.cs

using System;
using System.Drawing;
using System.Windows.Forms;

namespace Core
{
    class InputBox
    {
        public static DialogResult Show(string title, string promptText, ref string value)
        {
            DialogResult dialogResult = DialogResult.Cancel;
            using (var form = new Form())
            {
                Label label = new Label();
                TextBox textBox = new TextBox();
                Button buttonOk = new Button();
                Button buttonCancel = new Button();

                form.Text = title;
                label.Text = promptText;
                textBox.Text = value;

                buttonOk.Text = "OK";
                buttonCancel.Text = "Cancel";
                buttonOk.DialogResult = DialogResult.OK;
                buttonCancel.DialogResult = DialogResult.Cancel;

                label.SetBounds(9, 20, 372, 13);
                textBox.SetBounds(12, 36, 372, 20);
                buttonOk.SetBounds(228, 72, 75, 23);
                buttonCancel.SetBounds(309, 72, 75, 23);

                label.AutoSize = true;
                textBox.Anchor = textBox.Anchor | AnchorStyles.Right;
                buttonOk.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
                buttonCancel.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;

                form.ClientSize = new Size(396, 107);
                form.Controls.AddRange(new Control[] { label, textBox, buttonOk, buttonCancel });
                form.ClientSize = new Size(Math.Max(300, label.Right + 10), form.ClientSize.Height);
                form.FormBorderStyle = FormBorderStyle.FixedDialog;
                form.StartPosition = FormStartPosition.CenterScreen;
                form.MinimizeBox = false;
                form.MaximizeBox = false;
                form.AcceptButton = buttonOk;
                form.CancelButton = buttonCancel;

                dialogResult = form.ShowDialog();
                value = textBox.Text;
            }
            return dialogResult;
        }
    }
}