GNavigia und Datenbanken

Programmieren Sie eine Datenbankanbindung mittels COM

  {8BE02F24-766C-4ba3-A744-42FF0E3F8564}

Steuerung der Datenbankzugriffe

Initialisierung des Menüs

Laden und Speichern der Daten

Die IGpsDatabaseAccess Schnittstelle

public interface IGpsDatabaseAccess
{
    // Read only property: The database name
    string GpsDatabaseName { get;}

    // Read only property: An appropriate title
    string GpsDatabaseTitle { get;}

    // Read only property: A kind of tooltip
    string GpsDatabaseHint { get;}

    // Read only property: Menu item text for GpsInitialize
    string GpsInitializeMenuText { get;}

    // Read only property: Menu item text for GpsSaveData
    string GpsSaveDataMenuText { get;}

    // Read only property: Menu item text for GpsLoadData
    string GpsLoadDataMenuText { get;}

    // Menue called method to initialize database access.
    // returns: XmlDocuments.Response() if successfull
    string GpsInitialize(int hwnd);

    // Menue called method to connect to the database.
    // returns: XmlDocuments.Response() if successfull
    string GpsConnect(int hwnd);

    // Menue called method to disconnect from the database
    // returns: XmlDocuments.Response() if successfull
    string GpsDisconnect(int hwnd);

    // Menue called method to save data to database.
    // returns: XmlDocuments.Response() if successfull
    string GpsSaveData(int hwnd, string xmlDataString);

    // Menue called method to load data from database.
    // returns: An XML Data Document String if successfull where the
    // string is a fully qualified XML document. 
    // Mind the schema definition!
    string GpsLoadData(int hwnd);
}

Rückgabewerte

  KorKarNet.Utilities.dll 

Der harte Kern der Datenbankanbindung

    string GpsSaveData(int hwnd, string xmlDataString);
    string GpsLoadData(int hwnd);

Daten in der Datenbank speichern

    <Identifier iid="312" guid="AXZ67900jsds00" />

   -guid

Daten aus der Datenbank laden

Eigene Einstellungen transportieren

  <Database>
  </Database>

Hilfsfunktionen

string IDatabaseAccess.GpsSaveData(int hwnd, string xmlDataString);
{
    MessageBox.Show(new TemporaryOwner(hwnd), 
        String.Format("The method received a string of {0} bytes.",
        xmlDataString.Length));
    return null;
}