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NikoMitDaMacht 6. Aug 2004 15:55


Problem mit einer function( excel in stringgrid)
 
Hallo!

Ich ein grosses problem mit folgender fuction:
von http://www.advdelphisys.com/Code_Lib...pyToStringGrid
Delphi-Quellcode:
Function ExcelCopyToStringGrid( 
  Excel                : Variant;
  ExcelFirstRow        : Integer;
  ExcelFirstCol        : Integer;
  ExcelLastRow         : Integer;
  ExcelLastCol         : Integer;
  StringGrid           : TStringGrid;
  StringGridFirstRow   : Integer;
  StringGridFirstCol   : Integer;
  SizeStringGridToFit  : Boolean; {Make the StringGrid the same size as the input range} 
  ClearStringGridFirst : Boolean {cells outside input range in StringGrid are cleared} 
  ): Boolean;
Var
  C,R : Integer;
Begin
  Result := False;
  If ExcelLastCol < ExcelFirstCol Then Exit;
  If ExcelLastRow < ExcelFirstRow Then Exit;
  If (ExcelFirstRow < 1) Or (ExcelFirstRow > 255)  Then Exit;
  If (ExcelFirstCol < 1) Or (ExcelFirstCol > 30000) Then Exit;
  If (ExcelLastRow < 1) Or (ExcelLastRow > 255)   Then Exit;
  If (ExcelLastCol < 1) Or (ExcelLastCol > 30000) Then Exit;
  If StringGrid = nil  Then Exit;
  If SizeStringGridToFit Then
  Begin
    StringGrid.ColCount := ExcelLastCol - ExcelFirstCol + StringGridFirstCol + 1;
    StringGrid.RowCount := ExcelLastRow - ExcelFirstRow + StringGridFirstRow + 1;
  End;
  If ClearStringGridFirst Then
  Begin
    C := StringGrid.ColCount;
    R := StringGrid.RowCount;
    StringGrid.ColCount := 1;
    StringGrid.RowCount := 1;
    StringGrid.Cells[0,0] := '';
    StringGrid.ColCount := C;
    StringGrid.RowCount := R;
  End;

  Result := True;
  For R := ExcelFirstRow To ExcelLastRow Do
  Begin
    For C := ExcelFirstCol To ExcelLastCol Do
    Begin
      Try
        StringGrid.Cells[ 
          C - ExcelFirstCol + StringGridFirstCol,
          R - ExcelFirstRow + StringGridFirstRow] :=
            Excel.Cells[R, C];
      Except
        Result := False;
      End;
    End;
  End;
End;
mein problen ist dass ich nich weiss was ich für excel einstezten soll.
Wahrscheinelich :" excel : excelworksheet1.?"
weiter weiss ich nicht :wall:

Poolspieler 9. Aug 2004 10:56

Re: Problem mit einer function( excel in stringgrid)
 
Hallo,
ich habe mich schon mal mehrere Wochen mit Excelautomation herumgeschlagen, das macht nicht wirklich Spaß, weil vor allem alles soooo wunderbar dokumentiert ist... :x

Auf jeden Fall, die Lösung Deines Problems:

Delphi-Quellcode:
unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, Grids, comobj;

type
  TForm1 = class(TForm)
    Button1: TButton;
    StringGrid1: TStringGrid;
    procedure Button1Click(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

Function ExcelCopyToStringGrid(
  Excel                : Variant;
  ExcelFirstRow        : Integer;
  ExcelFirstCol        : Integer;
  ExcelLastRow         : Integer;
  ExcelLastCol         : Integer;
  StringGrid           : TStringGrid;
  StringGridFirstRow   : Integer;
  StringGridFirstCol   : Integer;
  SizeStringGridToFit  : Boolean; {Make the StringGrid the same size as the input range} 
  ClearStringGridFirst : Boolean {cells outside input range in StringGrid are cleared} 
  ): Boolean;
Var
  C,R : Integer;
Begin
  Result := False;
  If ExcelLastCol < ExcelFirstCol Then Exit;
  If ExcelLastRow < ExcelFirstRow Then Exit;
  If (ExcelFirstRow < 1) Or (ExcelFirstRow > 255)  Then Exit;
  If (ExcelFirstCol < 1) Or (ExcelFirstCol > 30000) Then Exit;
  If (ExcelLastRow < 1) Or (ExcelLastRow > 255)   Then Exit;
  If (ExcelLastCol < 1) Or (ExcelLastCol > 30000) Then Exit;
  If StringGrid = nil  Then Exit;
  If SizeStringGridToFit Then
  Begin
    StringGrid.ColCount := ExcelLastCol - ExcelFirstCol + StringGridFirstCol + 1;
    StringGrid.RowCount := ExcelLastRow - ExcelFirstRow + StringGridFirstRow + 1;
  End;
  If ClearStringGridFirst Then
  Begin
    C := StringGrid.ColCount;
    R := StringGrid.RowCount;
    StringGrid.ColCount := 1;
    StringGrid.RowCount := 1;
    StringGrid.Cells[0,0] := '';
    StringGrid.ColCount := C;
    StringGrid.RowCount := R;
  End;

  Result := True;
  For R := ExcelFirstRow To ExcelLastRow Do
  Begin
    For C := ExcelFirstCol To ExcelLastCol Do
    Begin
      Try
        StringGrid.Cells[ 
          C - ExcelFirstCol + StringGridFirstCol,
          R - ExcelFirstRow + StringGridFirstRow] :=
            Excel.Cells[R, C];
      Except
        Result := False;
      End;
    End;
  End;
End;

procedure TForm1.Button1Click(Sender: TObject);
var
  excel: Variant;
begin
 excel := createoleobject('excel.application');
 excel.workbooks.open ('c:\mappe1.xls');
 ExcelCopyToStringGrid(excel, 1, 1, 14, 7, StringGrid1, 0, 0, true, true);
 excel.application.quit;
end;

end.
:arrow: Vergiss comobj in der uses-clausel nicht!

Gruß und viel Spaß damit

Poolspieler

Luckie 9. Aug 2004 14:25

Re: Problem mit einer function( excel in stringgrid)
 
Habe ich ein deja vú? :gruebel: Das haben wir doch erst vor kurzem alles durchgekaut mit dir - oder?


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