private void button1_Click(object sender, RoutedEventArgs e)
{
System.Data.DataRowView[] value = new System.Data.DataRowView[100];
for(int i=0;i{
string lstValue = "";
value = (System.Data.DataRowView)Sid.SelectedItems;
lstValue = value.Row["firstname"].ToString() " + " value.Row["lastname"].ToString();
MessageBox.Show("you selected " + lstValue);
}