/// <summary>
/// 是否存在标题
/// </summary>
public bool ExistsTitle(int channel_id, string title)
{
string channelName = new BLL.site_channel().GetChannelName(channel_id);//查询频道名称
if (string.IsNullOrEmpty(channelName))
{
return(false);
}
return(int.Parse(dal.GetExists(sysdatabaseprefix, channelName, "count(1)", string.Format("title='{0}'", title))) > 0);
}