Binding event does not trigger

[Dylan-DutchAndBold]

Reading into the MS docs it seems that with two-way data binding I should be able to catch the triggering event instead of usingOnRangeSelect. However when I try @bind-StartDate:event="SomeHandlerFunction" nothing seems to happen.

https://docs.microsoft.com/en-us/aspnet/core/blazor/components/data-binding?view=aspnetcore-5.0#binding-with-component-parameters

[jdtcn]

Hi,

As far as I know, the purpose of @bind:event syntax is to select exact DOM event on which the binding occurs (for example oninput, onclick etc.). This syntax doesn't make sense in this case.

The binding you're looking for should look like this:

<DateRangePicker StartDateChanged="SomeHandlerFunction" />

@code {
    private void SomeHandlerFunction()
    {

    }
}

[Dylan-DutchAndBold]

Oh I see, so it's like telling on what Parameter (of type EventCallback) of that component to bind the change handler? I got that quite twisted then. Thanks a lot for the sample. It's clear now.

[jdtcn]

Yes exactly. The example from their docs is a bit misleading. But the tricky part is that we cannot use @bind-Property and PropertyChanged at the same time, because @bind- uses that PropertyChanged handler under the hood.