Question

MySqlCommand cmd = new MySqlCommand(query, conn);
dt.Load(cmd.ExecuteReader());
List<string> list = new List<string>();
  while (combodata.Read())
  {
     list.Add(combodata.GetString(0));
  }
source.DataSource = dt;

dataGrid1.ItemsSource = source;

how add list to source?

source.DataSource = dt;
source.DataSource = list;

wrong…

i need add dataGrid1.ItemsSource a dt and list
how i can?

Answer 1

You can use a CompositeCollection:

var cc = new CompositeCollection();
cc.Add(new CollectionContainer { Collection = new DataView(dt) });
cc.Add(new CollectionContainer { Collection = list });
dataGrid1.ItemsSource = cc;