Disable modal closing by escape key or lost focus

framework/src/Volo.Abp.BlazoriseUI/Components/UiMessageAlert.razor

@@ -1,4 +1,4 @@
-<Modal @ref="@ModalRef">
+<Modal @ref="@ModalRef" Closing="@OnModalClosing">
     <ModalBackdrop />
     <ModalContent Centered="@CenterMessage">
         <ModalHeader>

framework/src/Volo.Abp.BlazoriseUI/Components/UiMessageAlert.razor.cs

@@ -137,5 +137,11 @@ namespace Volo.Abp.BlazoriseUI.Components
 
             return Canceled.InvokeAsync(null);
         }
+
+        protected virtual void OnModalClosing(ModalClosingEventArgs eventArgs)
+        {
+            eventArgs.Cancel = eventArgs.CloseReason == CloseReason.EscapeClosing
+                || eventArgs.CloseReason == CloseReason.FocusLostClosing;
+        }
     }
 }