public NuoDbDataAdapter(NuoDbDataAdapter other)
: base()
{
this.SelectCommand = other.SelectCommand is ICloneable ? (NuoDbCommand)other.SelectCommand.Clone() : null;
this.InsertCommand = other.InsertCommand is ICloneable ? (NuoDbCommand)other.InsertCommand.Clone() : null;
this.DeleteCommand = other.DeleteCommand is ICloneable ? (NuoDbCommand)other.DeleteCommand.Clone() : null;
this.UpdateCommand = other.UpdateCommand is ICloneable ? (NuoDbCommand)other.UpdateCommand.Clone() : null;
}
public NuoDbDataAdapter(NuoDbDataAdapter other)
: base()
{
this.SelectCommand = other.SelectCommand is ICloneable ? (NuoDbCommand)other.SelectCommand.Clone() : null;
this.InsertCommand = other.InsertCommand is ICloneable ? (NuoDbCommand)other.InsertCommand.Clone() : null;
this.DeleteCommand = other.DeleteCommand is ICloneable ? (NuoDbCommand)other.DeleteCommand.Clone() : null;
this.UpdateCommand = other.UpdateCommand is ICloneable ? (NuoDbCommand)other.UpdateCommand.Clone() : null;
}
public void TestDisconnectedUpdate()
{
using (NuoDbConnection connection = new NuoDbConnection(connectionString))
{
DbDataAdapter da = new NuoDbDataAdapter("select id, number, name, position, team from hockey", connection);
NuoDbCommandBuilder builder = new NuoDbCommandBuilder();
builder.DataAdapter = da;
DataTable dt = new DataTable();
da.Fill(dt);
DataRow row = dt.NewRow();
row["NAME"] = "John Doe";
row["POSITION"] = "Developer";
row["TEAM"] = "NuoDB";
row["NUMBER"] = 100;
dt.Rows.Add(row);
int changed = da.Update(dt);
Assert.AreEqual(1, changed);
// TODO: http://msdn.microsoft.com/en-us/library/ks9f57t0%28v=vs.80%29.aspx describes a few options
// to retrieve the AutoNumber column. For the moment, I reload the entire table
dt = new DataTable();
da.Fill(dt);
DataRow[] rows = dt.Select("NUMBER = 100");
Assert.IsNotNull(rows);
Assert.AreEqual(1, rows.Length);
foreach (DataRow r in rows)
r["NUMBER"] = 0;
changed = da.Update(dt);
Assert.AreEqual(1, changed);
rows = dt.Select("NUMBER = 0");
Assert.IsNotNull(rows);
Assert.AreEqual(1, rows.Length);
foreach (DataRow r in rows)
r.Delete();
changed = da.Update(dt);
Assert.AreEqual(1, changed);
}
}
public void TestDisconnected()
{
using (NuoDbConnection connection = new NuoDbConnection(connectionString))
{
DataAdapter da = new NuoDbDataAdapter("select * from hockey", connection);
DataSet ds = new DataSet();
da.Fill(ds);
foreach (DataRow r in ds.Tables[0].Rows)
{
for (int i = 0; i < r.ItemArray.Length; i++)
{
if (i > 0)
Console.Out.Write(", ");
Console.Out.Write(r.ItemArray[i]);
} // for
Console.Out.WriteLine();
} // foreach
DataTable hockey = ds.Tables[0];
var query = from player in hockey.AsEnumerable()
where player.Field<string>("Position") == "Fan"
select new
{
Name = player.Field<string>("Name")
};
int count = 0;
foreach (var item in query)
{
Console.Out.Write(item.Name);
count++;
}
Assert.AreEqual(1, count);
}
}
