IDialogService.ConfirmAsync(MessageBoxOptions, RenderFragment) Method

Shows a confirmation dialog (message box).

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v26.1.dll

Declaration

Task<bool> ConfirmAsync(
    MessageBoxOptions messageBoxOptions,
    RenderFragment childContent = null
)

Parameters

Name	Type	Description
messageBoxOptions	MessageBoxOptions	An object that contains message box options.

Optional Parameters

Name	Type	Default	Description
childContent	RenderFragment	null	Custom content displayed in the message box body.

Returns

Type	Description
Task<Boolean>	The task that completes when the dialog closes. The task returns true if the user clicks OK. The task returns false if the user clicks Cancel or closes the dialog in another way, for example, by clicking Close, pressing Escape, or clicking outside the dialog box.

Remarks

Call the ConfirmAsync method to show a Confirmation type message box. Use the method parameter to specify message box settings.

Run Demo: Message Box - Dialog Service

<DxDialogProvider />
<DxButton Text="Show a message box window" Click="@OpenConfirmDialogAsync" />

@code {
    [Inject] IDialogService DialogService { get; set; }

    private bool? Result { get; set; } = null;

    private async Task OpenConfirmDialogAsync() {
        Result = await DialogService.ConfirmAsync(new MessageBoxOptions() {
            Title = "Error",
            Text = "Unable to process the request. Please try again later or contact support.",
            RenderStyle = MessageBoxRenderStyle.Danger,
            OkButtonText = "Contact Support",
            CancelButtonText = "Try Later",
        });
    }
}

Display Custom Content

To display custom content in a message box created by the dialog service, pass a RenderFragment to the ConfirmAsync(MessageBoxOptions, RenderFragment) method.

<DxDialogProvider />
<DxButton Text="Delete Files" Click="@OpenConfirmDialogAsync" />

@code {
    [Inject] IDialogService DialogService { get; set; }
    private bool? Result { get; set; }

    private async Task OpenConfirmDialogAsync() {
        Result = await DialogService.ConfirmAsync(
            new MessageBoxOptions() {
                Title = "Confirm Deletion",
                OkButtonText = "Delete",
                CancelButtonText = "Cancel",
                RenderStyle = MessageBoxRenderStyle.Danger
            },
            @<div>
                <p>The following files will be permanently deleted:</p>
                <ul>
                    <li>report_2025.pdf</li>
                    <li>invoice_march.xlsx</li>
                    <li>backup_data.zip</li>
                </ul>
                <p>This action cannot be undone.</p>
            </div>
        );
    }
}