private bool SetCurrentVaultAlias()

in Vault/Explorer/MainForm.cs [148:186]
35 lines of code
9 McCabe index (conditional complexity)

        private bool SetCurrentVaultAlias()
        {
            if (null == uxComboBoxVaultAlias.SelectedItem) return false;
            // Ignore selection of the same vault alias, only when list view is not empty
            if ((CurrentVaultAlias?.Alias == uxComboBoxVaultAlias.SelectedItem.ToString()) && (uxListViewSecrets.Items.Count > 0)) return false;
            if (uxComboBoxVaultAlias.SelectedItem is string)
            {
                switch (uxComboBoxVaultAlias.SelectedItem.ToString())
                {
                    case AddNewVaultText:
                        uxButtonHelp.PerformClick();
                        uxComboBoxVaultAlias.SelectedItem = CurrentVaultAlias;
                        return false;
                    case PickVaultText:
                        var smd = new SubscriptionsManagerDialog();
                        if (smd.ShowDialog() != DialogResult.OK)
                        {
                            uxComboBoxVaultAlias.SelectedItem = CurrentVaultAlias;
                            return false;
                        }
                        _tempVaultAliases[smd.CurrentVaultAlias.Alias] = smd.CurrentVaultAlias;
                        uxComboBoxVaultAlias.Items.Insert(uxComboBoxVaultAlias.Items.Count - 1, smd.CurrentVaultAlias);
                        uxComboBoxVaultAlias.SelectedItem = smd.CurrentVaultAlias;

                        // Set user alias and domain hint manually as they are not set from the assignment
                        ((VaultAlias)uxComboBoxVaultAlias.SelectedItem).UserAlias = smd.CurrentVaultAlias.UserAlias;
                        ((VaultAlias)uxComboBoxVaultAlias.SelectedItem).DomainHint = smd.CurrentVaultAlias.DomainHint;
                        break;
                }
            }
            CurrentVaultAlias = (VaultAlias)uxComboBoxVaultAlias.SelectedItem;
            bool itemSelected = (null != CurrentVaultAlias);
            uxComboBoxVaultAlias.SelectedText = CurrentVaultAlias.Alias;
            // In some cases, the combobox will be blank. Setting the text on a blank combobox will null the selected item. So, always ensure the selecteditem is set when setting the selected text.
            uxComboBoxVaultAlias.SelectedItem = CurrentVaultAlias;            
            uxComboBoxVaultAlias.ToolTipText = itemSelected ? "Vault names: " + string.Join(", ", CurrentVaultAlias.VaultNames) : "";
            uxMenuItemRefresh.Enabled = itemSelected;
            return itemSelected;
        }