Get component text based on component name - delphi

Question

So I creat some TEdit components like this
var
lb : TLabel;
topLabel, i: Integer;
dbedit : TEdit;
begin
inherited;
topLabel := 40;
i := 0;
lb := TLabel.Create(nil);
lb.Parent := GroupBox2;
lb.Left := 245;
lb.Top := 20;
lb.Caption := 'ASD';
with DataModule.myStoredProc do begin
Close;
ParamByName('#Param1').AsInteger := 1;
ExecProc;
Open;
SetLength(nrPozitiiDinctionar,RecordCount);
First;
while not Eof do begin
lb := TLabel.Create(nil);
lb.Parent := GroupBox2;
lb.Left := 7;
lb.Top := topLabel ;
lb.Caption := FieldByName('X').AsString;
dbedit := TEdit.Create(nil);
dbedit.Name := 'Edit'+IntToStr(FieldByName('Poz').AsInteger);
dbedit.Text := '';
dbedit.Parent := GroupBox2;
dbedit.Height := 21;
dbedit.Width := 40;
dbedit.Left := 240;
dbedit.Top := lb.Top-3 ;
topLabel := topLabel + 30;
nrPozitiiDinctionar[i] := FieldByName('Poz').AsInteger;
i := i + 1;
Next;
end;
end;
end;
Then after the user add his input I run a function with this code
var
IDPoz, I : Integer;
dbedit : TEdit;
pctj,nume : string;
begin
for I := Low(nrPozitiiDinctionar) to High(nrPozitiiDinctionar) do
begin
nume := 'Edit'+IntToStr(nrPozitiiDinctionar[i]);
pctj := TEdit(FindComponent('Edit'+IntToStr(nrPozitiiDinctionar[i]))).Text;
with DateCOFurnizori.spCOFCmzFurnizoriEvaluarePozitii_Edit do begin
ParamByName('#IDEvaluare').AsInteger := StrToInt(Edit1.Text);
ParamByName('#IDPozitie').AsInteger := IDPoz;
ParamByName('#DictionarID').AsInteger := 9103;
ParamByName('#DictionarPozitiiID').AsInteger := nrPozitiiDinctionar[i];
ParamByName('#Punctaj').AsFloat := 1 ;//StrToFloat(pctj) ;
ParamByName('#DataEvaluare').AsDateTime := Now;
ExecProc;
IDPoz := IDPoz + 1;
end;
end;
This is only a portion of the code but this should relate to my problem.
When I use the debugger there is no value in pctj, what am I doing wrong? I try to get the value of the TEdits based on their names. What am I doing wrong with the FindComponent function?

Answer 1

You are not assigning an Owner to the TEdit controls, so that is why FindComponent() cannot find them. Either assign Self as the Owner (since you are calling Self.FindComponent()), or else store the TEdit pointers in a TList or TObjectList that you can loop through when needed.