private void 设置城市ToolStripMenuItem_Click(object sender, EventArgs e)
{
//第四步：将要实现的方法绑定到委托事件
SetCityName setcityname = GenericSingleton <SetCityName> .CreateInstrance();
setcityname.MyEvent += new SetCityName.MyDelegate(b_MyEvent);//监听b窗体事件
setcityname.ShowDialog();
}
public static SetCityName CreateInstrance()
{
if (frm == null || frm.IsDisposed)
{
frm = new SetCityName(); //单例
}
return(frm);
}
