private void menuDishInfo_Click(object sender, EventArgs e)
{
FrmDishInfo Frmdi = FrmDishInfo.CreateFrm(); //实例
Frmdi.Show(); //显示
Frmdi.Focus(); //给焦点
}
} //保存实例
/// <summary>
/// 单例模式中静态实例本类对象
/// </summary>
/// <returns>实例的对象</returns>
public static FrmDishInfo CreateFrm()
{
if (_FrmDishInfo == null) //判断是否已经实例对象
{
_FrmDishInfo = new FrmDishInfo();
}
return(_FrmDishInfo); //返回
}
private void FrmDishInfo_FormClosing(object sender, FormClosingEventArgs e)
{
_FrmDishInfo = null; //关闭窗口后释放实例资源
}