Read from a text-file.

you could try something like this:

var
 sl : TStringList;
 ix : integer;
begin
 sl := TStringList.create;
 sl.loadFromFile('some_fileName_here');
 ix := 0;
 while (ix < sl.count) do
  if sl[ix] = '' then
   sl.delete(ix)
  else
   ix := ix+1;
 sl.commaText := sl.text;
 for ix := 0 to sl.count div 2 do
  with listView1.items.add do
  begin
   caption := sl[ix*2];
   subItems.add(sl[ix*2+1];
  end;
 sl.free;
end;


GL
Mike

function resolve(String strInput):String;
begin
   i,iMid:integer;
   str:String;
   strList:TStringList;
   strList:=TStringList.create;
   for i:=0 to Length(strInput) do
   begin
       str:=copy(strInput,i,1);
       if str=' ' then
       begin
          iMid=i;
          break;
       end;
   end;
   strList.add(trim(copy(strInput,0,iMid)));
   strList.add(trim(copy(strInput,iMid,Length(strInput)-iMid)));  
   result:=strList.text;
end;
//procedure add to listview
var
tempList,strList : TStringList;
index: integer;
ListItem: TListItem;
begin
tempList := TStringList.create;
strList := TStringList.create;
if FileExists(strFilePath) then
begin
     tempList.LoadFromFile(strFilePath);
     index := 0;
     ListView1.items.clear;
     while (index < tempList .count) do
     begin
         ListItem:=ListView1.Items.Add;//???u
         strList.text:=rosolve(tempList.Strings[index]);
         ListItem.Caption:=tempList.Strings[0];
         ListItem.SubItems.Add(tempList.Strings[1]);
         inc(index);
     end;
end;
tempList.free;
strList.free;
end;

function resolve(String strInput):String;
begin
   i,iMid:integer;
   str:String;
   strList:TStringList;
   strList:=TStringList.create;
   for i:=0 to Length(strInput) do
   begin
       str:=copy(strInput,i,1);
       if str=' ' then
       begin
          iMid=i;
          break;
       end;
   end;
   strList.add(trim(copy(strInput,0,iMid)));
   strList.add(trim(copy(strInput,iMid,Length(strInput)-iMid)));  
   result:=strList.text;
end;
//procedure add to listview
var
tempList,strList : TStringList;
index: integer;
ListItem: TListItem;
begin
tempList := TStringList.create;
strList := TStringList.create;
if FileExists(strFilePath) then
begin
     tempList.LoadFromFile(strFilePath);
     index := 0;
     ListView1.items.clear;
     while (index < tempList .count) do
     begin
         ListItem:=ListView1.Items.Add;//???u
         strList.text:=rosolve(tempList.Strings[index]);
         ListItem.Caption:=tempList.Strings[0];
         ListItem.SubItems.Add(tempList.Strings[1]);
         inc(index);
     end;
end;
tempList.free;
strList.free;
end;

well my version :-)

unit lv_fill_file_u;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, ComCtrls;

type
  TForm1 = class(TForm)
    ListView1: TListView;
    Button1: TButton;
    OpenDialog1: TOpenDialog;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

//a generic stringsplitter
function SplitStr(Var AString : String; ADelim : String) : String;
var APos : Integer;
begin
  Result := '';
  APos := Pos(ADelim,AString);
  if APos > 0 then
  begin
    Result := Copy(AString,1,APos-1);
    AString := copy(Astring,APos+length(Adelim),MaxLongInt);
  end
  else
  begin
    Result := AString;
    AString := '';
  end;
end;


//the filling routine
procedure do_fill_lv(AFileName : String; AListView : TListView);
var
  sl : TStringList;
  I : Integer;
  s : String;
  li : TListItem;
begin
  sl := TStringList.Create;
  Try
    try
      sl.loadfromfile(AFileName);
      AListView.Items.Clear;
      for i := 0 to sl.count - 1 do
      begin
        s := sl[i];
        li := AlistView.Items.Add;
        li.Caption := SplitStr(s,'     '); //five blanks as delimiter
        li.SubItems.Add(s);
      end;
    finally
      sl.free;
    end;
  except
    raise;
  end;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  if opendialog1.execute then
    do_fill_lv(opendialog1.filename,listview1);
end;

end.

meikl ;-)

corected version, because the blank lines:

unit lv_fill_file_u;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, ComCtrls;

type
  TForm1 = class(TForm)
    ListView1: TListView;
    Button1: TButton;
    OpenDialog1: TOpenDialog;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

function SplitStr(Var AString : String; ADelim : String) : String;
var APos : Integer;
begin
  Result := '';
  APos := Pos(ADelim,AString);
  if APos > 0 then
  begin
    Result := Copy(AString,1,APos-1);
    AString := copy(Astring,APos+length(Adelim),MaxLongInt);
  end
  else
  begin
    Result := AString;
    AString := '';
  end;
end;


procedure do_fill_lv(AFileName : String; AListView : TListView);
var
  sl : TStringList;
  I : Integer;
  s : String;
  li : TListItem;
begin
  sl := TStringList.Create;
  Try
    try
      sl.loadfromfile(AFileName);
      AListView.Items.Clear;
      for i := 0 to sl.count - 1 do
      begin
        s := sl[i];
        if trim(s) <> '' then
        begin
          li := AlistView.Items.Add;
          li.Caption := SplitStr(s,'     '); //five blanks as delimiter
          li.SubItems.Add(s);
        end;
      end;
    finally
      sl.free;
    end;
  except
    raise;
  end;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  if opendialog1.execute then
    do_fill_lv(opendialog1.filename,listview1);
end;

end.

meikl ;-)

kretzschmar,
With your solution I get all
items in the same column in the list-view.

http://130.236.233.202/Test.zip

or

http://130.236.233.202/test.txt

Will cointain a example of the file I like to import.

kretzschmar,


Your solution seems to work fine if I replace:


li.Caption := SplitStr(s,'     '); //five blanks as delimiter


with

li.Caption := SplitStr(s,#9); //Tab as delimiter

But how can I change this to work eaven if it's more than one Tab or if the columns are separated with one or more spaces?

Just for fun, another version:

procedure TextToListView(const AName: string; AView: TListView);
var
     Line: Integer;
     S: string;
     function CutStringPart: string;
     var
          SB,SE: Integer;
     begin
          SB:=1;
          while (SB<=Length(S)) and (S[SB]<=#32) do //detect leading spaces
               Inc(SB);
          SE:=SB;
          while (SE<=Length(S)) and (S[SE]>#32) do //trace text part
               Inc(SE);
          Result:=Copy(S,SB,SE-SB);
          while (SE<=Length(S)) and (S[SE]<=#32) do //find trailering spaces
               Inc(SE);
          Delete(S,1,SE-1);
     end;
begin
     with TStringList.Create do try
          LoadFromFile(AName);
          AView.Items.Clear;
          for Line:=0 to Count-1 do begin
               S:=Strings[Line];
               if S<>'' then
                    with AView.Items.Add do begin
                         Caption:=CutStringPart;
                         while S<>'' do
                              SubItems.Add(CutStringPart);
                    end;
          end;
     finally
          Free;
     end;
end;

good points,

let me try it too :-)

var
  L: TStringList;
  I,J: Integer;
  S: String;
begin
  ListView1.Items.Clear;
  L := TStringList.Create;
  try
    L.LoadFromFile('D:\FILE1.TXT');
    for I := 0 to L.Count-1 do
    begin
      S := Trim(L[I]);
      if S <> '' then
      begin
        J := Pos(' ', S);
        with ListView1.Items.Add do
        begin
          Caption := Trim(Copy(S, 1, J-1));
          Subitems.Add(Trim(Copy(S, J, 255)));
        end
      end
    end
  finally
    L.Free
  end
end;


-----
Igor

:-)) many ways possible

If you are get the text file from excel document.
There are a component that deal with excel documents.
This will be more accurate to read your data.
It's name is XLSReadWrite and it's URL http://www.axolot.com 
Thanks
Ahmed Ragab

? may this will be an answer, if there is only this textfile with no chance to access the excel-sheet directly from which this will come?

i will recommend you to with draw your answer!

if hulken have the possibility to access excel directly,
then of course it would be a suggestion of many others.

let hulken decide, what do best fit to his needs

meikl ;-)

:-) with draw -> withdraw

as i had seen, your suggestion is comercial

my last two comments are pointd to RAGAB2000

;-)

My original solution will only work for comma & space delimited text files, though it wouldn't be hard to alter.  Classes.pas has this function def. for GetCommaText (the parser behind TStrings.commaText):

function TStrings.GetCommaText: string;
var
  S: string;
  P: PChar;
  I, Count: Integer;
begin
  Count := GetCount;
  if (Count = 1) and (Get(0) = '') then
    Result := '""'
  else
  begin
    Result := '';
    for I := 0 to Count - 1 do
    begin
      S := Get(I);
      P := PChar(S);
      while not (P^ in [#0..' ','"',',']) do P := CharNext(P);
      if (P^ <> #0) then S := AnsiQuotedStr(S, '"');
      Result := Result + S + ',';
    end;
    System.Delete(Result, Length(Result), 1);
  end;
end;


You'd just need to modify:

(P^ in [#0..' ','"',','])

to contain the char(s) you do want to delimit by., for ex:

(P^ in [#0..' ','"',',',#9])

GL
Mike

Another thought, if you'd prefer not to mess with your own parsing routines (though the above is a very simple mod) is to use the nthword funtion (in PSock, so you need the fastnet components, though I wouldn't recomend using them for inet stuff ;P ).  It'll take a string, an arbritary delimiter & give the n'th word from the input string.

GL
Mike

as I said... it was a textfile I like to work with..

OK,
edy, coffeetea , : ITugay and : AvonWyss

Thnks for helping me out.. I will add some questions with name points for XXX (where XXX is your name) to give you some points for helping me to learn how to work with text-files.

: kretzschmar:

I fell for youw solutions so I will accept your comment as an answer.. Thanks!

: RAGAB2000

Your propose was not what I asked for but mabe I will have some need for your comment lateron so I will add a question with points for you also.


Thnks every one for helping me out...
You are realy nice all of you...

I will probably see you here lateron.

Thanks for the help.

well, thanks for the points :-)
glad you like it and its usefull for you,
glad to helped you :-)

good luck again

meikl ;-)