/// <summary>
        /// Shows the repository folder browser and sets URL cell value to the selected url
        /// </summary>
        /// <param name="row"></param>
        private void SelectRepositoryFolder(DataGridViewRow row)
        {
            IAnkhServiceProvider context = Context;

            if (context != null)
            {
                using (RepositoryExplorer.RepositoryFolderBrowserDialog rfbd = new RepositoryExplorer.RepositoryFolderBrowserDialog())
                {
                    // do not show files in repo browser
                    rfbd.ShowFiles = false;

                    string selectedUriString = row.Cells[0].Value as string;

                    // set the current URL value as the initial selection
                    Uri selectedUri;
                    if (!string.IsNullOrEmpty(selectedUriString) &&
                        Uri.TryCreate(selectedUriString, UriKind.Absolute, out selectedUri)
                        )
                    {
                        rfbd.SelectedUri = selectedUri;
                    }
                    if (DialogResult.OK == rfbd.ShowDialog(context))
                    {
                        Uri uri = rfbd.SelectedUri;
                        // set the Url cell value to the selected Url
                        row.Cells[0].Value = uri == null ? string.Empty : uri.AbsoluteUri;
                    }
                }
            }
        }
        /// <summary>
        /// Shows the repository folder browser and sets URL cell value to the selected url
        /// </summary>
        /// <param name="row"></param>
        private void SelectRepositoryFolder(DataGridViewRow row)
        {
            IAnkhServiceProvider context = Context;
            if (context != null)
            {
                using (RepositoryExplorer.RepositoryFolderBrowserDialog rfbd = new RepositoryExplorer.RepositoryFolderBrowserDialog())
                {
                    // do not show files in repo browser
                    rfbd.ShowFiles = false;

                    string selectedUriString = row.Cells[0].Value as string;

                    // set the current URL value as the initial selection
                    Uri selectedUri;
                    if (!string.IsNullOrEmpty(selectedUriString)
                        && Uri.TryCreate(selectedUriString, UriKind.Absolute, out selectedUri)
                        )
                    {
                        rfbd.SelectedUri = selectedUri;
                    }
                    if (DialogResult.OK == rfbd.ShowDialog(context))
                    {
                        Uri uri = rfbd.SelectedUri;
                        // set the Url cell value to the selected Url
                        row.Cells[0].Value = uri == null ? string.Empty : uri.AbsoluteUri;
                    }
                }
            }
        }