[SYNC]

lib/src/sheet/src/models/sheet_store.model.dart

@@ -15,6 +15,21 @@ class SheetStore extends ChangeNotifier {
   static final StreamController<UnmodifiableMapView<String, dynamic>> _stateStreamController = StreamController<UnmodifiableMapView<String, dynamic>>.broadcast();
   final Stream<UnmodifiableMapView<String, dynamic>> stateStream = _stateStreamController.stream;
 
+  /// Adds [item] to store.
+  dynamic get(String itemID) {
+    if (!_items.containsKey(itemID)) {
+      throw Exception('No item with the ID $itemID exist in the SheetStore, Are you sure you added it?');
+    }
+    return _items[itemID];
+  }
+
+  dynamic tryGet(String itemID) {
+    if (!_items.containsKey(itemID)) {
+      return null;
+    }
+    return _items[itemID];
+  }
+
   /// Adds [item] to store.
   void add(String itemID, dynamic value) {
     _items.addEntries(<MapEntry<String, dynamic>>[MapEntry<String, dynamic>(itemID, value)]);
@@ -39,16 +54,15 @@ class SheetStore extends ChangeNotifier {
 
   /// Removes [item] from the store.
   void remove(String itemID, dynamic value) {
-    if (!_items.containsKey(itemID)) {
+    if (_items.containsKey(itemID)) {
-      throw Exception('No item with the ID $itemID exist in the SheetStore, Are you sure you added it?');
+      _items.remove(itemID);
     }
-    _items.remove(itemID);
     // This call tells the widgets that are listening to this store to rebuild.
     notifyListeners();
   }
 
   /// Return a stream builder for real-time value updates.
   Widget builder({required Widget child}) {
-    return ListenableBuilder(listenable: this, builder: (_,__) => child);
+    return ListenableBuilder(listenable: this, builder: (_, __) => child);
   }
 }