public static FrmParamSet GetSingleInstance() { if (singleInstance == null || singleInstance.IsDisposed) { singleInstance = new FrmParamSet(); } return(singleInstance); }
private void ToolStripMenuItem参数设置_Click(object sender, EventArgs e) { //创建参数设置窗体并显示 CloseExistedSubForm(); FrmParamSet objFrmParamSet = FrmParamSet.GetSingleInstance(); OpenSubForm(objFrmParamSet); }