/// <summary>
/// Checks if a service channel with given id exists in the database.
/// </summary>
/// <param name="channelId">channel guid as string</param>
/// <returns>true if the channel exists otherwise false</returns>
protected bool CheckChannelExists(string channelId)
{
if (string.IsNullOrWhiteSpace(channelId))
{
return(false);
}
Guid?chId = channelId.ParseToGuid();
if (!chId.HasValue)
{
return(false);
}
return(ChannelService.ChannelExists(chId.Value));
}