Data type question

[justnewbie]

Hi!
I have a StringGrid and its cells contain numbers.
These numbers are bigger than the LongInt range (>2147483647).
But, I have to use them for some calculating and need to convert them from string (StringGrid cells) by using StrToInt.
My problem is that StrToInt returns a LongInt, but my numbers are LongWord.
How can it be resolved?

[Blaazen]

There are functions StrToInt64() or TryStrToInt64().

[justnewbie]

There are functions StrToInt64() or TryStrToInt64().

Thank you! I hoped it, but the "See also" section doesn't show these functions at https://www.freepascal.org/docs-html/rtl/sysutils/strtoint.html

[Handoko]

You can also try TStringHelper.ToInt64 and TInt64Helper.ToString:
https://www.freepascal.org/docs-html/rtl/sysutils/tstringhelper.toint64.html
https://www.freepascal.org/docs-html/rtl/sysutils/tint64helper.tostring.html

Code: Pascal  [Select][+][-]

1. procedure TForm1.Button1Click(Sender: TObject);
2. var
3.   S   : string;
4.   I64 : Int64;
5. begin
6.   S   := '123456789012';
7.   I64 := S.ToInt64;
8.   ShowMessage(I64.ToString);
9. end;

[justnewbie]

Perfect, works! Thank you guys!