AutoEditForm/AutoCreateForm one field can determine values in another field

ServiceStack Auto Query
1

Using Blazor and AutoQuery.

On AutoEditForm or AutoCreateForm instances, how can the value in one field control the options in another field.

For example, lets say i have an opportunity, which has stage and type fields. Based on the type of opportunity, I want to filter stage values that can be selected. What is the best way to go about this?

public enum OpportunityStage
{
    Prospecting,
    Pledged,
    ClosedWon,
    ClosedLost,
    Withdrawn,
    Posted
}

public enum OpportunityType
{
    Donation,
    Grant,
    InKindGift,
    MajorGift,
    MatchingGift,
    Membership
}

[Icon(Svg = Icons.Opportunity)]
[Description("Opportunity Details")]
public class Opportunity : AuditBase
{
    [AutoIncrement]
    public int OpportunityId { get; set; }

    [Ref(Model = nameof(Associate), RefId = nameof(Associate.AssociateId), RefLabel = nameof(Associate.DisplayName))]
    [References(typeof(Associate))]
    public int? AssociateId { get; set; }

    [Reference]
    public Associate ? CurrentAssociate { get; set; }

    public string OpportunityName { get; set; } = default!;

    public OpportunityType OpportunityType { get; set; } = default!; 

    [IntlNumber(Currency = NumberCurrency.USD)]
    public decimal ? Amount { get; set; }

    [IntlDateTime(DateStyle.Long)]
    public DateTime ? CloseDate { get; set; }

    public OpportunityStage Stage { get; set; }

}

<AutoQueryGrid Model="Opportunity" Apis="Apis.AutoQuery<QueryOpportunityAutoQuery,CreateOpportunityAutoQuery,UpdateOpportunityAutoQuery>()"
               AllowSelection="true" AllowFiltering="true">
2

Any behavior or feature that can’t be defined decoratively would require using a custom form, some examples using EditForm.

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