public static DatabaseDesignForm Instance()
{
if (instance == null)
{
lock (_lockThis)
{
instance = new DatabaseDesignForm();
}
}
else
{
instance.FormLoadAgain();
}
return(instance);
}
private void DesignerForm_FormClosing(object sender, FormClosingEventArgs e)
{
SaveUserDesign();
instance = null;
}