Flutter Dropdownbutton selected value is not changing I am using dropdownbutton and mapping data using Product model but onchange my value is not changing
DropdownButtonHideUnderline(
child: DropdownButton<Product>(
hint: Text("Select Product"),
dropdownColor: Colors.white,
isExpanded: true,
items: _productController.products
.map((Product value) {
return new DropdownMenuItem<Product>(
value: value,
child: new Text(value.productName),
);
}).toList(),
onChanged: (Product val) {
_stockController.price.text = val.price;
_stockController.productName.text = val.productName;
selectedProduct = val.productName;
TextStyle(color: Colors.black);
setState(() {});
},
),
),
