"Nullable object must have a value" error in Blazor InputNumber Component

Question

I am trying to use a nullable property with InputNumber built-in Blazor Component. When I use the property with @bind-Value attribute, it works fine. But when I am trying to use it like below, it is giving error 'Nullable object must have a value'

 <InputNumber class="form-control" ValueExpression="@(() => model.Amount)"
                             Value="@(model.Amount)"
                             ValueChanged="@((double? value) => AmountUpdated(value))" />

I have to implement some custom logic on ValueChanged event which is why I am trying to use bind values this way.

You'll have to show more code than that. At the very least, show your model class and the AmountUpdated signature. — Bennyboy1973
– Bennyboy1973, Commented Jul 28, 2021 at 6:14

Julio Cachay · Accepted Answer · 2021-07-28 03:38:09Z

2

I would try this

 ValueChanged="@((value) => AmountUpdated(value))"

answered Jul 28, 2021 at 3:38

Julio Cachay

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