Data Connector with XML Provider

/// <summary>
/// App Client class based on <see cref="SOWIData.Database.Connector{DataItemClass}"/>)
/// </summary>
/// <seealso cref="SOWIData.Database.Connector{DataItemClass}"/>
/// <seealso cref="Data.Client"/>
public class Client : SOWIData.Database.Connector<Data.Client>
{
     // ...
}

/// <summary>
/// Constructor with parameters: connectin string and user name
/// </summary>
/// <param name="pConnectionString">XML Connection String properties: DataSource equal XML and InitialCatalog it XML file name</param>
/// <param name="pUserName">User name</param>
public Client(string pConnectionString, string pUserName) : base(pConnectionString, pUserName)
{
    this.SetDB();
}

/// <summary>
/// Puts XML data connector via property ConnectionString
/// </summary>
/// <remarks>
/// For a XML data connector must the property value DataSource of ConnectionString equal XML (see <see cref="SOWIData.Providers"/>. <para/>
/// Then is property value InitialCatalog the XML file name.
/// </remarks>
/// <seealso cref="SOWIData.Providers"/>
/// <seealso cref="SqlConnectionStringBuilder"/>
protected override void SetDB()
{
    try
    {
        //* analysis of property ConnectionString *
        SqlConnectionStringBuilder lConnectionString = new SqlConnectionStringBuilder(this.ConnectionString);
        string lDataSource = lConnectionString.DataSource;
        if (lDataSource.ToUpper() == SOWIData.Providers.XML.ToString())
        {
            //* puts XML data connector *
            string lFileName = lConnectionString.InitialCatalog;
            this.XML = new SOWIData.XML.Document<Data.Client>(lFileName);
        }
    }
    catch (Exception ex)
    {
        SIC.Protocol.Write(ref ex);
        throw ex;
    }
}

/// <summary>
/// Gives raw data list and is basis for all data processing
/// </summary>
/// <returns>A data list</returns>
protected override List<santesuisseData.Client> GetList()
{
    try
    {
        return this.XML.GetList();
    }
    catch (Exception ex)
    {
        SIC.Protocol.Write(ref ex);
        throw ex;
    }
}