public void LoadChannel() { try { Tz888.BLL.Link.LinkChannelType Channel = new Tz888.BLL.Link.LinkChannelType(); DropChannel.DataSource = Channel.GetChannelList(); DropChannel.DataTextField = "ChannelName"; DropChannel.DataValueField = "ChannelId"; DropChannel.DataBind(); ListItem item = new ListItem(); item.Text = "-请选择-"; item.Value = "-1"; DropChannel.Items.Insert(0, item); } catch (Exception ex) { throw new Exception(ex.Message); } }