private void lkRegister_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
Form test = Application.OpenForms["frmrg"]; //查找是否打开过该子窗体
if ((test == null) || (test.IsDisposed)) //未找到则新创建
{
FrmMian frmrg = new FrmMian();
frmrg.Show();
}
else//否则聚焦该窗口
{
test.Activate();
}
}
private void btnAdd_Click(object sender, EventArgs e)//进入注册界面
{
FrmMian reg = new FrmMian();
reg.Show();
}