void Chain()
{
var uidList = GetFlyContentBeanList()
.Where(b => b.isSelected)
.Select(b => b.uid)
.ToList();
var servList = settings
.GetAllServersList()
.Where(s => uidList.Contains(s.GetCoreStates().GetUid()))
.ToList();
var package = settings
.GetPackageList()
.FirstOrDefault(p => p.name == tboxName.Text);
var newUid = settings.Chain(servList, package?.uid, tboxName.Text);
if (package != null && !string.IsNullOrEmpty(newUid))
{
package.uid = newUid;
settings.SavePackage(package);
}
}