DxFlyout.ShowAsync(CancellationToken) Method

Asynchronously shows the flyout window.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v25.1.dll

NuGet Package: DevExpress.Blazor

Declaration

public Task<bool> ShowAsync(
    CancellationToken token = default(CancellationToken)
)

Optional Parameters

Name	Type	Default	Description
token	CancellationToken	null	An object that propagates a cancellation notification.

Returns

Type	Description
Task<Boolean>	An asynchronous operation that shows the window. The operation returns true if the operation is successful; otherwise, false.

Remarks

Call the ShowAsync and CloseAsync methods to show and close the flyout window asynchronously.

If you call the ShowAsync method before the window is initialized, the operation returns false. You can use the IsInitialized property to check the initialization state. Run the InitializedTask task to wait until the flyout window is initialized.

<DxButton Text="Show" Click="ShowWindow" aria-describedby="flyout" />
<DxButton Text="Hide" Click="HideWindow" />

<DxFlyout Id="flyout" @ref="flyoutWindow" Width="400" CloseOnOutsideClick="false"
            BodyText="Lorem ipsum dolor sit amet, consectetur adipiscing elit." />

@code {
    DxFlyout flyoutWindow { get; set; }

    async Task ShowWindow(MouseEventArgs args) {
        if (!flyoutWindow.IsInitialized)
            await flyoutWindow.InitializedTask;
            await flyoutWindow.ShowAsync();
    }
    async Task HideWindow(MouseEventArgs args) {
        await flyoutWindow.CloseAsync();
    }
}

You can handle the following events related to ShowAsync and CloseAsync methods:

Showing

Fires before the flyout window is displayed.

Shown

Fires after the flyout window is displayed.

Closing

Fires before the flyout window is closed.

Closed

Fires after the flyout window is closed.

To show and close the flyout window synchronously, implement two-way binding for the IsOpen property.