/// <summary>
/// 下拉框数据绑定
/// </summary>
public void ddlDataBinder()
{
List <Sys_Channel> channelList = _channelService.GetAllParent();
ddlAllParentSystem.DataSource = channelList;
ddlAllParentSystem.DataTextField = "ChannelName";
ddlAllParentSystem.DataValueField = "ChannelId";
ddlAllParentSystem.DataBind();
ddlAllParentSystem.Items.Insert(0, new ListItem("顶级系统", "0"));
}