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0
Votes

Enter custom value causes exception in Blazor WASM autocomplete

The following exception occurs when we type a custom value and press enter in allowCustom enabled autocomplete.

Error: System.MissingMethodException: No parameterless constructor defined for type 'SyncfusionBlazorWASMApp.Pages.Index+Order'.


Code:


@using Syncfusion.Blazor.DropDowns



<SfAutoComplete TValue="string" TItem="Order" AllowCustom="true" Placeholder="e.g. Australia" @bind-Value="@AutoVal" DataSource="@Orders">

<AutoCompleteFieldSettings Value="CustomerID"></AutoCompleteFieldSettings>

</SfAutoComplete>



@code{

    public List<Order> Orders { get; set; }

    public string AutoVal;




    protected override void OnInitialized()

    {

        Orders = Enumerable.Range(1, 5).Select(x => new Order(x, ValidValues[new Random().Next(ValidValues.Length)])).ToList();

    }


   

    public class Order

    {

        public Order(int orderId, string customerId)

        {

            OrderID = orderId;

            CustomerID = customerId;

        }

        public int? OrderID { get; set; }

        public string CustomerID { get; set; }


    }

}

Replication step:


1. Run the above code in a WASM app

2. Type “a” and press enter.

3. Check the browser console


Result: Exception is thrown

Expected: filtered items to be displayed without exception