AccordionSelectionChangedEventArgs.Reason Property

Returns the reason why the Accordion item’s selection state changed.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.2.dll

NuGet Package: DevExpress.Blazor

Declaration

public NavigationItemStateChangeReason Reason { get; }

Property Value

Type	Description
NavigationItemStateChangeReason	A NavigationItemStateChangeReason enumeration value.

Available values:

Name	Description
ApiCall	The state changes programmatically.
UserAction	The state changes by user action.
UrlMatch	The state changes as a result of URL matching.

Remarks

The following example expands to the Square item if it was selected from code:

<DxButton Click=@OnClick>Expand</DxButton>

<DxAccordion @ref="@MyAccordion"
             SelectionMode="NavigationSelectionMode.Single"
             SelectionChanged="@OnSelectionChanged"
             RootItemExpandButtonDisplayMode="AccordionExpandButtonDisplayMode.None">
    <Items>
        <DxAccordionItem Text="Shapes">
            <Items>
                <DxAccordionItem Text="Circle" />
                <DxAccordionItem Text="Square" />
            </Items>
        </DxAccordionItem>
        <DxAccordionItem Text="Templates" />
    </Items>
</DxAccordion>

@code {
    DxAccordion MyAccordion;
    void OnClick() {
        MyAccordion.SelectItem(x => x.Text == "Square");
    }
    void OnSelectionChanged(AccordionSelectionChangedEventArgs args) {
        if (args.Reason == NavigationItemStateChangeReason.UserAction) {
            MyAccordion.ExpandToItem(x => x == args.SelectedItems.FirstOrDefault());
        }
    }
}