Bend.MainWindow.TabClose C# (CSharp) Method

        private void TabClose(int tabIndex)
        {
            if (tabIndex == this.currentTabIndex)
            {
                // Switch to an existing tab
                // We know i < tab.Count - check if we are the last tab before switching to a tab after us.
                // if we are the last tab switch to a tab before us.
                if (tabIndex == (tab.Count - 1))
                {
                    this.currentTabIndex = tabIndex - 1;
                    if (this.currentTabIndex >= 0)
                    {
                        tab[this.currentTabIndex].Title.Opacity = 1.0;
                        tab[this.currentTabIndex].TextEditor.Visibility = Visibility.Visible;
                        tab[this.currentTabIndex].TextEditor.Focus();
                    }
                }
                else
                {
                    // After deletion all indexes after i shift.
                    this.currentTabIndex = tabIndex;

                    tab[this.currentTabIndex + 1].Title.Opacity = 1.0;
                    tab[this.currentTabIndex + 1].TextEditor.Visibility = Visibility.Visible;
                    tab[this.currentTabIndex + 1].TextEditor.Focus();
                }
            }
            else
            {
                // The indexes shifted, since a tab was deleted.
                if (this.currentTabIndex > tabIndex)
                {
                    this.currentTabIndex--;
                }
            }

            // Clear find on page
            this.currentSearchIndex = 0;

            // Delete current tab
            TabBar.Children.Remove(tab[tabIndex].Title);
            Editor.Children.Remove(tab[tabIndex].TextEditor);
            tab[tabIndex].Close();
            tab.RemoveAt(tabIndex);
        }