C# WinForm 定位顯示 [如何將表單 (Windows Forms .net) 位置和大小]

資料來源: https://docs.microsoft.com/zh-tw/dotnet/desktop/winforms/forms/how-to-position-and-resize?view=netdesktop-6.0

Code

form.StartPosition = FormStartPosition.Manual;

form.Location = new Point(parentForm.Width / 2 - form.Width / 2 + parentForm.Location.X,
                          parentForm.Height / 2 - form.Height / 2 + parentForm.Location.Y);

form.Show();