https://community.graphisoft.com/t5/GDL/Format-numbers-with-leading-zeros/m-p/275819#M4851 After you converted it, you should inquire the length of the string (which will be 1, 2, or 3), and depending on that value, fill the beginning of the string with leading "0" characters. Mon, 31 Aug 2020 05:34:44 GMT Laszlo Nagy 2020-08-31T05:34:44Z https://community.graphisoft.com/t5/GDL/Format-numbers-with-leading-zeros/m-p/275817#M4849 <DIV class="actalk-migrated-content">Hi everyone,<BR /><BR />Here is a simple question, how to convert integer numbers to strings with leading zeros using str or str{2} functions ?<BR /><BR />ex:<BR />1 to be show as 01 or 001</DIV> Mon, 26 Sep 2022 20:45:45 GMT https://community.graphisoft.com/t5/GDL/Format-numbers-with-leading-zeros/m-p/275817#M4849 Nader Belal 2022-09-26T20:45:45Z https://community.graphisoft.com/t5/GDL/Format-numbers-with-leading-zeros/m-p/275818#M4850 If the format string for the STR function was like normal programming languages, this would be easy, but alas it is 'unique' and seems to have no way of producing leading zeros. Mon, 31 Aug 2020 01:31:36 GMT https://community.graphisoft.com/t5/GDL/Format-numbers-with-leading-zeros/m-p/275818#M4850 Karl Ottenstein 2020-08-31T01:31:36Z https://community.graphisoft.com/t5/GDL/Format-numbers-with-leading-zeros/m-p/275819#M4851 After you converted it, you should inquire the length of the string (which will be 1, 2, or 3), and depending on that value, fill the beginning of the string with leading "0" characters. Mon, 31 Aug 2020 05:34:44 GMT https://community.graphisoft.com/t5/GDL/Format-numbers-with-leading-zeros/m-p/275819#M4851 Laszlo Nagy 2020-08-31T05:34:44Z https://community.graphisoft.com/t5/GDL/Format-numbers-with-leading-zeros/m-p/275820#M4852 Thank you all Mon, 31 Aug 2020 10:29:28 GMT https://community.graphisoft.com/t5/GDL/Format-numbers-with-leading-zeros/m-p/275820#M4852 Nader Belal 2020-08-31T10:29:28Z