diff --git a/flutter b/flutter
new file mode 100644
index 0000000..e69de29
diff --git a/lib/screens/Excursion/widgets/hinweise.dart b/lib/screens/Excursion/widgets/hinweise.dart
index 36b3f9e..666a8ce 100644
--- a/lib/screens/Excursion/widgets/hinweise.dart
+++ b/lib/screens/Excursion/widgets/hinweise.dart
@@ -19,9 +19,51 @@ class _HinweiseState extends State<Hinweise> {
   bool heulenChecked = false;
   bool sonstigesChecked = false;
 
+
   // for sonstiges textfield
   TextEditingController sonstigesController = TextEditingController();
 
+  @override
+  void initState() {
+    super.initState();
+    sonstigesController.addListener(updateController);
+  }
+
+  @override
+  void dispose() {
+    sonstigesController.dispose();
+    super.dispose();
+  }
+
+  void updateController() {
+    Map<String, bool> props = {
+    "liegestelle": liegestelleChecked,
+    "kadaver": kadaverChecked,
+    "sichtung": sichtungChecked,
+    "heulen": heulenChecked,
+    "sonstiges": sonstigesChecked
+  };
+    bool firstRun = true;
+
+    widget.hinweise.text = "";
+
+    for (String key in props.keys) {
+    if (!firstRun) {
+        widget.hinweise.text += ";";
+      }
+    if (key == "sonstiges") {
+        widget.hinweise.text += "$key:${sonstigesController.text}";
+
+      } else {
+        widget.hinweise.text += "$key:${props[key]}";
+      }
+
+    firstRun = false;
+
+  }
+    print(widget.hinweise.text);
+  }
+
 
   @override
   Widget build(BuildContext context) {
@@ -33,6 +75,7 @@ class _HinweiseState extends State<Hinweise> {
             value: liegestelleChecked, 
             onChanged: (bool? value) {
               setState(() => liegestelleChecked = value ?? false);
+              updateController();
             } 
           ),
 
@@ -41,6 +84,7 @@ class _HinweiseState extends State<Hinweise> {
             value: kadaverChecked, 
             onChanged: (bool? value) {
               setState(() => kadaverChecked = value ?? false);
+              updateController();
             } 
           ),
 
@@ -49,6 +93,7 @@ class _HinweiseState extends State<Hinweise> {
             value: sichtungChecked, 
             onChanged: (bool? value) {
               setState(() => sichtungChecked = value ?? false);
+              updateController();
             } 
           ),
 
@@ -57,18 +102,20 @@ class _HinweiseState extends State<Hinweise> {
             value: heulenChecked, 
             onChanged: (bool? value) {
               setState(() => heulenChecked = value ?? false);
+              updateController();
             } 
           ),
           CheckboxListTile(
             title: Text("Sonstiges"),
-            value: liegestelleChecked, 
+            value: sonstigesChecked, 
             onChanged: (bool? value) {
               setState(() => sonstigesChecked = value ?? false);
+              updateController();
             } 
           ),
 
           if (sonstigesChecked)
-          VarTextField(textController: sonstigesController, localization: "Sonstiges", dbName: "HinweiseSonstiges", required: false, dbDesignation: DatabasesEnum.excursion,)
+          VarTextField(textController: sonstigesController, localization: "Sonstiges", dbName: "HinweiseSonstiges", required: false, dbDesignation: DatabasesEnum.excursion)
         ],
       );