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Thread: Delphi 8 ADOdotNet

  1. #1
    Member
    Join Date
    Sep 2004
    Location
    Almelo
    Posts
    28

    Delphi 8 ADOdotNet

    Aangezien de helpfiles heel veel info geeft met VBdotNet- en C#-voorbeeldcode heb ik een probleem met het volgende uit het werken met ADdotNet onder Delphi8:

    Helpfile geeft alleen VB en C# voorbeeld:

    [Visual Basic]
    Code:
    Public Function GetTables(conn As OleDbConnection) As DataTable
      conn.Open()
    
     Dim schemaTable As DataTable = conn.GetOleDbSchemaTable  (OleDbSchemaGuid.Tables, New Object() {Nothing, Nothing, Nothing, "TABLE"})
      conn.Close()
      Return schemaTable
    End Function
    [C#]
    Code:
    public DataTable GetTables(OleDbConnection conn)
      {
       conn.Open();
       DataTable schemaTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables,
                                                                   new object[] {null, null, null, "TABLE"});
      conn.Close();
      return schemaTable;
      }
    // Hoe moet dit in Delphi??

    Hoe moet in Delphi 8 (onder WinForms) het aanmaken van New Object eruitzien?
    Last edited by Dees; 06-Sep-04 at 23:11.

  2. #2

  3. #3
    Ongeveer zo, alleen weet ik de precieze datatypes niet

    Code:
    function GetTablenames(Conn: OleDBConnection)
    var
      SchemaTable: TDataTable; // ?? of DataTable
    begin
      Conn.Open;
      SchemaTable := Conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, ??, ??, ??, 'TABLE');
      Conn.Close;
      result := SchemaTable;
    end;

  4. #4
    SillyMember
    Join Date
    May 2003
    Location
    Gent
    Posts
    7,725
    Code:
    function GetTables(conn: OleDbConnection): DataTable;
    type
      TArrayOfObject = array of System.Object;
    begin
      conn.Open;
      Result := conn.GetOleDbSchemaTable( OleDbSchemaGuid.Tables,
         TArrayOfObject.Create(nil, nil, nil, 'TABLE'));
      conn.Close;
    end;
    All methodologies are based on fear. -- Kent Beck.

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