[C#] InputBox 만들기

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// InputBox 함수 구현.         public DialogResult InputBox(string title, string promptText, ref string value)         {             Form 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 dialogResult = form.ShowDialog();             value = textBox.Text;             return dialogResult;         }           private void ListView1DoubleClick(object sender, EventArgs e)         {             // InputBox 호출부 구현.             string value = "0";             if (this.InputBox("Enter values", "Value :", ref value) == DialogResult.OK)             {                 MessageBox.Show(value);             }         }