public static void CleanObj()
{
if (obj != null)
{
obj = null;
}
}
public static SelectTime CreateInstance()
{
if (obj == null)
{
return(obj = new SelectTime());
}
else
{
return(obj);
}
}
private void SelectTime_FormClosing(object sender, FormClosingEventArgs e)
{
obj = null;
}