I have a form with an input text field and I want to validate it before I submit the form. You can enter a natural number like 1, 5, 7 etc or you can enter a float number like 1.5,…
Withvar pinU = int.parse(pin.text); I get this error: E/flutter (16045): [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: FormatException: Invalid number (at character 1) E/flutter (16045): E/flutter (16045): ^ With var pinU = pin as int; I get this error: E/flutter (16045): [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception:…
I am getting this error when i use Radio Button. int _value = 1; error: A value of type 'int?' can't be assigned to a variable of type 'int'. (invalid_assignment at [coacum_01] lib/match_screen.dart:450) Honestly i don't know what to do,…
How can i convert a String to an Integer without losing the zeros and preventing an overflow. <?php $iban = "DE85370100500123456403"; $d = 13; $e = 14; $pruefz = substr($iban, 2, 2); $blz = substr($iban, 4, 8); $kto = substr($iban,…
I have this list [null, 3, 5, null] and I want to join the values in-between nulls and put it into the same list For example: [null, 3, 5, null] into [null, 35, null] I made this one extension that…
I'm trying to figure out whether the Int32 in Core Data will be presented as 32 bits or 64 bits on a 64 bits Device, but I could not find a valid answer on SO. I went to Swift document,…
I have a JSON file That provides the values as integers, so I need to change them to strings to continue with my project. Here's the JSON (there's more pairs but this is for examples sake): { "cotdata": [ {…
I'm confused, I was asked to do a connection from Java into MySQL using OOP and DAO, but my professor asked us to do it in a the following way: We need to make the variable "MethodOfPayment" as an int…
I am trying to enter data for each row into a SQL Database table but keep getting this error 'Conversion from string "VisitorID" to type 'Integer' is not valid.' This is the code i have got Dim url As String…
I need your support to convert integer: 20160513225918 I wanted like : 2016-05-13 22:59:18 thank you.