SingleChildScrollView not working on the full row - flutter

Question

I'm having a Row which contains a list of widgets , a Builder and a variable that adds new item to the list to be built with the Builder.
Anyway , I was trying to wrap the whole Rows with SingleChildScrollView , but now , every part of my Row is scrolling separately .
My Row contains two widgets Expanded() and inside the Expanded() , I got a itemBuilder.
I got a button in the bottom that calls two functions , and they will add new Widgets to the List.
class _ajouterUnDocumentState extends State<ajouterUnDocument> {
List<Widget> _cardList = [
(InputRefNomProduit()),
];
List<Widget> _cardList2 = [
(InputQuntitePrixProduit()),
];
void _addCardWidgetExp1() {
setState(() {
_cardList.add(SizedBox(height: 10));
_cardList.add(InputRefNomProduit());
});
}
void _addCardWidgetExp2() {
setState(() {
_cardList2.add(SizedBox(height: 10));
_cardList2.add(InputQuntitePrixProduit());
});
}
final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
#override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Color(0xFF2A2D3E),
body: Padding(
padding:
EdgeInsets.only(top: 60.0, bottom: 60.0, left: 120.0, right: 120.0),
child: Form(
key: _formKey,
child: Card(
shadowColor: Color.fromARGB(255, 255, 255, 255),
color: Color(0xFF2A2D3E),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(40.0)),
elevation: 10.0,
child: Container(
width: 1800,
child: Column(
children: <Widget>[
Center(
child: Container(
padding: EdgeInsets.all(20),
child: Column(
children: <Widget>[
Text(
"AJOUTER UN FOURNISSEUR",
style: TextStyle(
fontSize: 30, fontWeight: FontWeight.bold),
),
Divider(
thickness: 3,
),
SingleChildScrollView(
child: Container(
child: Row(
mainAxisSize: MainAxisSize.max,
children: [
Expanded(
flex: 3,
child: Column(
children: [
SizedBox(
height: 10,
),
SizedBox(
height: 530,
width: 500,
child: ListView.builder(
itemCount: _cardList.length,
itemBuilder: (context, index) {
return _cardList[index];
}),
),
],
),
),
SizedBox(width: 25),
Expanded(
flex: 3,
child: Column(
children: [
SizedBox(
height: 10,
),
SizedBox(
height: 530,
width: 500,
child: ListView.builder(
itemCount: _cardList2.length,
itemBuilder: (context, index) {
return _cardList2[index];
}),
),
],
),
),
],
),
),
),
//Membership Widget from the widgets folder
Center(
child: Row(
children: <Widget>[
SizedBox(
width: 400.0,
),
MaterialButton(
color: Colors.grey[200],
onPressed: () {},
child: Text(
"Annuler",
style: TextStyle(color: Colors.black),
),
),
SizedBox(
width: 20.0,
),
MaterialButton(
color: Color.fromARGB(255, 75, 100, 211),
onPressed: () {
_addCardWidgetExp1();
_addCardWidgetExp2();
},
child: Text(
"Ajouter",
style: TextStyle(color: Colors.white),
),
),
],
),
),
],
),
),
),
],
),
),
),
),
),
);
}
}
This is InputQuntitePrixProduit():
Widget build(BuildContext context) {
return LayoutBuilder(
builder: (BuildContext context, BoxConstraints constraints) {
return Row(
children: <Widget>[
Expanded(
flex: 1,
child: Container(
width: 25.0,
child: Text(
"$label",
textAlign: TextAlign.left,
style: TextStyle(
fontWeight: FontWeight.w900,
color: Color.fromARGB(255, 255, 255, 255),
),
),
),
),
Expanded(
flex: 3,
child: Container(
width: MediaQuery.of(context).size.width / 3.7,
color: Color.fromARGB(255, 255, 255, 255),
child: TextFormField(
controller: fieldController,
validator: fieldValidator,
style: TextStyle(
fontSize: 15.0,
color: Colors.black,
),
decoration: InputDecoration(
contentPadding: EdgeInsets.all(10.0),
hintText: "$content",
hintStyle: TextStyle(
color: Color.fromARGB(255, 190, 190, 190),
fontSize: 14),
fillColor: Color.fromARGB(255, 0, 0, 0),
),
),
),
),
SizedBox(
width: 5.0,
),
Expanded(
flex: 2,
child: Container(
width: 50.0,
child: Text(
"$label2",
textAlign: TextAlign.left,
style: TextStyle(
fontWeight: FontWeight.w900,
color: Color.fromARGB(255, 255, 255, 255),
),
),
),
),
SizedBox(
width: 5.0,
),
Expanded(
flex: 3,
child: Container(
width: MediaQuery.of(context).size.width / 3.7,
color: Color.fromARGB(255, 255, 255, 255),
child: TextFormField(
enabled: false,
controller: fieldController,
validator: fieldValidator,
style: TextStyle(
fontSize: 15.0,
color: Colors.black,
),
decoration: InputDecoration(
contentPadding: EdgeInsets.all(10.0),
hintText: "$content2",
hintStyle: TextStyle(
color: Color.fromARGB(255, 190, 190, 190),
fontSize: 14),
fillColor: Color.fromARGB(255, 0, 0, 0),
),
),
),
),
],
);
},
);
}
}