Is there any way to specify the function that runs when a use clicks the x presented by the AllowClear property? I am receiving errors on this due to having several dropdowns working in tandem with one another and would love to provide a function that runs on clear.
The clear button will set the value to default(TValue) - if you bind the Value using @bind-Value you can catch this in the property setter.
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That makes sense, so in my case I had a reference type of IEnumerable, which the default would be null for then. So, the solution here would be to add backing fields for my properties and implement the setters as:
_backingField = value is null ? Enumerable.Empty<T>() : value;
Appreciate the insight on how the clear button functions!
Might be a bit cleaner if the drop down controls had a property to override the default of default(TValue) such as
ClearValue="Enumerable.Empty<TValue>()"
Which would avoid having to add backing fields for the bind-Value properties in cases like these. Just a thought.