C#父窗体关闭打开的子窗体

显示窗体：

try

            {

                Form loadingform = new loading();

                loadingform.StartPosition = FormStartPosition.CenterParent;

                loadingform.ShowDialog();

            }

            catch

            {



            }

关闭窗体：

Application.OpenForms["loadingform"].Close();

参考

http://msdn.microsoft.com/zh-cn/library/system.windows.forms.application.openforms(VS.80).aspx