/// <summary> /// /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void 雨量查询ToolStripMenuItem_Click(object sender, EventArgs e) { if (this.checkChildFrmExist("雨量查询")) { return; } frmRain f = new frmRain(); f.MdiParent = this; f.Show(); f.WindowState = FormWindowState.Maximized; }