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C#
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public countries FindFirst(Expression<Func<countries, bool>> predicate)
{
...
}
public bool CountryExist(int iso)
{
var isoNum = iso.ToString();
return db.Countries.Any(c=>c.iso_num == isoNum);
}
this.Text = string.Format("current thread #{0}",
Thread.CurrentThread.ManagedThreadId);
var text = string.Format("current thread #{0}", Thread.CurrentThread.ManagedThreadId);
this.Invoke(()=> Text = text);