DxAccordion.SetItemExpanded(Func<IAccordionItemInfo, Boolean>, Boolean) Method

Expands or collapses the specified node.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v24.2.dll

NuGet Package: DevExpress.Blazor

Declaration

public void SetItemExpanded(
    Func<IAccordionItemInfo, bool> predicate,
    bool expanded
)

Parameters

Name	Type	Description
predicate	Func<IAccordionItemInfo, Boolean>	A delegate method that specifies a particular node.
expanded	Boolean	true to expand an item; false to collapse an item.

Remarks

Use the SetItemExpanded method to expand or collapse the item from code.

The following code snippet expands the Navigation and Layout item:

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

<DxAccordion @ref=Accordion>
    <Items>
        <DxAccordionItem Text="Grid" NavigateUrl="https://demos.devexpress.com/blazor/Grid" />
        <DxAccordionItem Text="Navigation and Layout" NavigateUrl="https://demos.devexpress.com/blazor/Navigation">
            <Items>
                <DxAccordionItem Text="Accordion" />
                <DxAccordionItem Text="Stack Layout" />
            </Items>
        </DxAccordionItem>
        <DxAccordionItem Text="Data Editors" NavigateUrl="https://demos.devexpress.com/blazor/Editors" />
        <DxAccordionItem Text="Scheduler" NavigateUrl="https://demos.devexpress.com/blazor/Scheduler" />
    </Items>
</DxAccordion>

@code {
    DxAccordion Accordion;
    void OnClick() {
        Accordion.SetItemExpanded(i => i.Text == "Navigation and Layout", true);
    }
}