Abfrage: Ist Datensatz bereits vorhanden?

[p80286]

Wenn Du eine ADOQuery verwendest kann das z.B. so aussehen:

Delphi-Quellcode:

object Form1: TForm1
  Left = 192
  Top = 124
  Width = 870
  Height = 640
  Caption = 'Form1'
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -11
  Font.Name = 'MS Sans Serif'
  Font.Style = []
  OldCreateOrder = False
  PixelsPerInch = 96
  TextHeight = 13
  object DBGrid1: TDBGrid
    Left = 248
    Top = 112
    Width = 33
    Height = 25
    [B]DataSource = DataSource1[/B]
    TabOrder = 0
    TitleFont.Charset = DEFAULT_CHARSET
    TitleFont.Color = clWindowText
    TitleFont.Height = -11
    TitleFont.Name = 'MS Sans Serif'
    TitleFont.Style = []
  end
  object ADOQuery1: TADOQuery
    ConnectionString = 'Provider=MSDASQL.1'
    Parameters = <>
    Left = 96
    Top = 112
  end
  object DataSource1: TDataSource
    [B]DataSet = ADOQuery1
[/B]    Left = 176
    Top = 112
  end
end

Gruß
K-H