diff --git a/examples/todos/src/Bindings.cpp b/examples/todos/src/Bindings.cpp
index ed76eab..2ca8fc1 100644
--- a/examples/todos/src/Bindings.cpp
+++ b/examples/todos/src/Bindings.cpp
@@ -162,6 +162,17 @@ QVariant Todos::data(const QModelIndex &index, int role) const
     return QVariant();
 }
 
+int Todos::role(const char* name) const {
+    auto names = roleNames();
+    auto i = names.constBegin();
+    while (i != names.constEnd()) {
+        if (i.value() == name) {
+            return i.key();
+        }
+        ++i;
+    }
+    return -1;
+}
 QHash<int, QByteArray> Todos::roleNames() const {
     QHash<int, QByteArray> names = QAbstractItemModel::roleNames();
     names.insert(Qt::UserRole + 0, "completed");
diff --git a/examples/todos/src/Bindings.h b/examples/todos/src/Bindings.h
index 6f2cab9..cbd6028 100644
--- a/examples/todos/src/Bindings.h
+++ b/examples/todos/src/Bindings.h
@@ -38,6 +38,7 @@ public:
     void fetchMore(const QModelIndex &parent) override;
     Qt::ItemFlags flags(const QModelIndex &index) const override;
     void sort(int column, Qt::SortOrder order = Qt::AscendingOrder) override;
+    int role(const char* name) const;
     QHash<int, QByteArray> roleNames() const override;
     QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
     bool setHeaderData(int section, Qt::Orientation orientation, const QVariant &value, int role = Qt::EditRole) override;