ARCed.UI.DockPanel.AddContent C# (CSharp) Method

        internal void AddContent(IDockContent content)
        {
            if (content == null)
                throw (new ArgumentNullException());

            if (!this.Contents.Contains(content))
            {
                this.Contents.Add(content);
                this.OnContentAdded(new DockContentEventArgs(content));
            }
        }