增加MessageBoxService服务

Source/Store.Management.Framework/Services/MessageBoxService/MessageBoxServiceExtensions.cs

@@ -0,0 +1,37 @@
+namespace Store.Management.Framework
+{
+	public static class MessageBoxServiceExtensions
+	{
+		extension(IMessageBoxService service)
+		{
+			public MessageResult ShowMessage(string messageBoxText, string caption, MessageButton button, MessageIcon icon, MessageResult defaultResult)
+			{
+				VerifyService(service);
+				return service.Show(messageBoxText, caption, button, icon, defaultResult);
+			}
+			public bool? ShowMessage(string messageBoxText)
+			{
+				return service.ShowMessage(messageBoxText, string.Empty);
+			}
+			public bool? ShowMessage(string messageBoxText, string caption)
+			{
+				return service.ShowMessage(messageBoxText, caption, MessageButton.OK).ToBool();
+			}
+			public MessageResult ShowMessage(string messageBoxText, string caption, MessageButton button)
+			{
+				return service.ShowMessage(messageBoxText, caption, button, MessageIcon.None);
+			}
+			public MessageResult ShowMessage(string messageBoxText, string caption, MessageButton button, MessageIcon icon)
+			{
+				VerifyService(service);
+				return service.Show(messageBoxText, caption, button, icon, MessageResult.None);
+			}
+		}
+
+		static void VerifyService(IMessageBoxService service)
+		{
+			if (service == null)
+				throw new ArgumentNullException(nameof(service));
+		}
+	}
+}