public void DeactivateContent(IStatusBarContent content)
        {
            var leftContent = LeftContentCollection.Where(p => p == content).ToList();

            if (leftContent.Any())
            {
                DeactivateLeftContent(leftContent);
            }

            var rightContent = RightContentCollection.Where(p => p == content).ToList();

            if (rightContent.Any())
            {
                DeactivateRightContent(rightContent);
            }
        }
        public void DeactivateContent(string instanceId)
        {
            var leftContent = LeftContentCollection
                              .Where(p => !string.IsNullOrEmpty(p.ContentId) && p.ContentId.Equals(instanceId, StringComparison.OrdinalIgnoreCase))
                              .ToList();

            if (leftContent.Any())
            {
                LeftContentCollection.RemoveRange(leftContent);
            }

            var rightContent = RightContentCollection
                               .Where(p => !string.IsNullOrEmpty(p.ContentId) && p.ContentId.Equals(instanceId, StringComparison.OrdinalIgnoreCase))
                               .ToList();

            if (rightContent.Any())
            {
                RightContentCollection.RemoveRange(rightContent);
            }
        }