입력 값 유효성 검사 기능

Assets/Scripts/Studio/UI/Elements/UI_MQTTConnection.cs

@@ -60,13 +60,23 @@ namespace Studio.UI
             onMQTTTest?.Invoke();
 
             var domain = InputField_Domain.text;
-            var port = int.Parse(InputField_Port.text);
+            if (string.IsNullOrWhiteSpace(domain))
+            {
+                return;
+            }
+            if (!int.TryParse(InputField_Port.text, out var port))
+            {
+                return;
+            }
 
             List<string> topics = new();
             foreach (UI_InputTopicItem item in inputTopicItems)
             {
                 var topic = item.InputField_Topic.text;
-                topics.Add(topic);
+                if (!string.IsNullOrWhiteSpace(topic))
+                {
+                    topics.Add(topic);
+                }
             }
             var tmpClient = new TemporaryMQTTClient(domain, port, topics, OnTopicTest, OnConnectedClient, OnErrorClient);
             panel_MQTTTestResult.Open(domain, port.ToString());