HelperDatabaseIsChangedDataClass Method

public static bool DatabaseIsChanged<DataClass>(
	this IConnector<DataClass> pApp,
	string pConnectionString,
	string pUserName
)

<ExtensionAttribute>
Public Shared Function DatabaseIsChanged(Of DataClass) ( 
	pApp As IConnector(Of DataClass),
	pConnectionString As String,
	pUserName As String
) As Boolean

/// <summary>
/// App object on memory for a better performance
/// </summary>
private static App.Customer App = null;

/// <summary>
/// Data list on memory for a better performance
/// </summary>
private static List<Data.Customer> DataList = null;

#region --- database ---

//* checks database access connection string *
if (pConnectionString.Length == 0)
{
    //* puts SOWIApp.sconfig current configuration *
    pConnectionString = SOWIApp.Management.Data.Settings.Database.Setting.ConnectionString;
}

//* checks database access user name *
if (pUserName.Length == 0)
{
    //* puts logged user name *
    pUserName = System.Environment.UserName;
}

//* do check necessary a new instance of App *
lDatabaseIsChanged = App.Customer.App.DatabaseIsChanged(pConnectionString, pUserName);
if (lDatabaseIsChanged)
{
    App.Customer.App = new Customer(pConnectionString, pUserName);
}

//* do check necessary load data list *
if (App.Customer.DataList == null)
{
    lDatabaseIsChanged = true;
}

#endregion

//* do check necessary reread data list *
if (lDatabaseIsChanged)
{
    App.Customer.DataList = App.Customer.App.GetList();
}