@oninput problem

input class="clean-input" type="number" value="@item.ProductAttributes.FirstOrDefault(pa => pa.AttributeId == 1)?.Value"
                                       @oninput="@(args => UpdateAttributeValue(item, 1, (string)args.Value!))"/>

input class="clean-input" type="number" value="@item.ProductAttributes.FirstOrDefault(pa => pa.AttributeId == 1)?.Value"
                                       @oninput="@(args => UpdateAttributeValue(item, 1, (string)args.Value!))"/>

private async Task UpdateAttributeValue(Product product, int attributeId, string value)
    {
        Console.WriteLine($"Product: {product.Name}, AttributeId: {attributeId}, Value: {value}");
        var attribute = product.ProductAttributes.FirstOrDefault(pa => pa.AttributeId == attributeId);

        if (attribute is not null)
        {
            attribute.Value = value;
            DbContext.ProductAttributes.Update(attribute);
            await DbContext.SaveChangesAsync();
        }
        else
        {
            DbContext.ProductAttributes.Add(new ProductAttribute
            {
                ProductId = product.ProductId,
                AttributeId = attributeId,
                Value = value
            });
            await DbContext.SaveChangesAsync();
        }
    }

private async Task UpdateAttributeValue(Product product, int attributeId, string value)
    {
        Console.WriteLine($"Product: {product.Name}, AttributeId: {attributeId}, Value: {value}");
        var attribute = product.ProductAttributes.FirstOrDefault(pa => pa.AttributeId == attributeId);

        if (attribute is not null)
        {
            attribute.Value = value;
            DbContext.ProductAttributes.Update(attribute);
            await DbContext.SaveChangesAsync();
        }
        else
        {
            DbContext.ProductAttributes.Add(new ProductAttribute
            {
                ProductId = product.ProductId,
                AttributeId = attributeId,
                Value = value
            });
            await DbContext.SaveChangesAsync();
        }
    }