abp/framework/src/Volo.Abp.BlazoriseUI/AbpBlazoriseUiModalExtensions.cs

using System.Threading.Tasks;
using Blazorise;

namespace Volo.Abp.BlazoriseUI;

public static class AbpBlazoriseUiModalExtensions
{
    public static Task CancelClosingModalWhenFocusLost(this Modal modal, ModalClosingEventArgs eventArgs)
    {
        // cancel close if clicked outside of modal area
        eventArgs.Cancel = eventArgs.CloseReason == CloseReason.FocusLostClosing;

        return Task.CompletedTask;
    }
}