public List<int> GenerateSecond(ObservableCollection<Model> observableCollection)
{
HashSet<int> hashSet = new HashSet<int>();
observableCollection
.Select(x => x.NUMBER)
.ToList()
.ForEach(x => hashSet.Add(x));
ObservableCollection<int> list = new ObservableCollection<int>();
using (BCRandomStream randomStream = new BCRandomStream(100))
{
//for (int i = 0; i < observableCollection.Count; i++)
//{
var num = randomStream.Read();
if (hashSet.Contains(num))
hashSet.Add(num);
List<int> lista= Enumerable.Range(0,observableCollection.Count)
.Select(i => randomStream.Read())
.Where(x => hashSet.Contains(x)).ToList();
// }
return lista;
}
}
public object Generate(int maxValue)
{
connectionString = GlobalSetting.CreateConectionString(
@"C:\Users\user\Documents\visual studio 2013\Projects\WpfRandomValue\WPFDatabase.fdb",
"SYSDBA", "masterkey", "WIN1250");
using (var conn = new FbConnection(connectionString))
{
conn.Open();
using (BCRandomStream randomStream = new BCRandomStream(maxValue))
{
var command = new FbCommand();
command.Connection = conn;
command.CommandText = string.Format("INSERT INTO NUMBERTABLE(NUMBER) VALUES (@number)");//, );
FbParameter param = new FbParameter();
param.ParameterName = "@number";
param.Value = randomStream.Read();
command.Parameters.Add(param);
return command.ExecuteScalar();
}
}
}
