diff --git a/src/barchart/barchartseries.cpp b/src/barchart/barchartseries.cpp
index d57e179..89b1e60 100644
--- a/src/barchart/barchartseries.cpp
+++ b/src/barchart/barchartseries.cpp
@@ -1,14 +1,21 @@
 #include "barchartseries.h"
 QTCOMMERCIALCHART_BEGIN_NAMESPACE
 
-BarChartSeries::BarChartSeries(QList<int> data, QObject *parent)
+BarChartSeries::BarChartSeries(QObject *parent)
     : QChartSeries(parent)
-    , mData(data)
 {
 }
 
+bool BarChartSeries::setData(QList<int> data)
+{
+    mData = data;
+    return true;
+}
+
 int BarChartSeries::min()
 {
+    Q_ASSERT(mData.count() > 0);
+
     // TODO: make min and max members and update them when data changes.
     // This is slower since they are checked every time, even if data is same since previous call.
     int min = mData.at(0);
@@ -23,6 +30,8 @@ int BarChartSeries::min()
 
 int BarChartSeries::max()
 {
+    Q_ASSERT(mData.count() > 0);
+
     int max = mData.at(0);
 
     for (int i=0; i <mData.count(); i++) {
diff --git a/src/barchart/barchartseries.h b/src/barchart/barchartseries.h
index 7ba8d1c..6a4045e 100644
--- a/src/barchart/barchartseries.h
+++ b/src/barchart/barchartseries.h
@@ -10,14 +10,19 @@ QTCOMMERCIALCHART_BEGIN_NAMESPACE
 // Container for series
 class QTCOMMERCIALCHART_EXPORT BarChartSeries : public QChartSeries
 {
-
+    // TODO:
+//    Q_OBJECT
 public:
-    BarChartSeries(QList<int> data, QObject* parent=0);
+    BarChartSeries(QObject* parent=0);
 
     // from QChartSeries
-    static QChartSeries* create(QObject* parent = 0 );
     virtual QChartSeriesType type() const { return QChartSeries::SeriesTypeBar; }
 
+    virtual bool setData(QList<int> data);
+    virtual bool setData(QList<qreal> data) {return false;}
+    virtual bool setData(QList<qreal> x, QList<qreal> y) {return false;}
+
+
     // Methods to find out minimum and maximum values of data
     int min();
     int max();
diff --git a/src/qchartseries.cpp b/src/qchartseries.cpp
new file mode 100644
index 0000000..a087b8d
--- /dev/null
+++ b/src/qchartseries.cpp
@@ -0,0 +1,32 @@
+#include "qchartglobal.h"
+#include "qchartseries.h"
+
+#include "barchartseries.h"
+#include "qxychartseries.h"
+
+QTCOMMERCIALCHART_BEGIN_NAMESPACE
+
+QChartSeries* QChartSeries::create(QChartSeriesType type, QObject* parent)
+{
+    // TODO: Other types
+    switch (type) {
+    case QChartSeries::SeriesTypeLine: {
+        QXYChartSeries* s = QXYChartSeries::create(parent); // TODO: do we need create method for derived implementations?
+        return s;
+    }
+    case QChartSeries::SeriesTypePie: {
+       return 0;
+    }
+    case QChartSeries::SeriesTypeScatter: {
+       return 0;
+    }
+    case QChartSeries::SeriesTypeBar: {
+        BarChartSeries* s = new BarChartSeries(parent);
+        return s;
+    }
+    default:
+        return 0;
+    }
+}
+
+QTCOMMERCIALCHART_END_NAMESPACE
diff --git a/src/qchartseries.h b/src/qchartseries.h
index b7cf198..71e2037 100644
--- a/src/qchartseries.h
+++ b/src/qchartseries.h
@@ -8,7 +8,8 @@ QTCOMMERCIALCHART_BEGIN_NAMESPACE
 
 class QTCOMMERCIALCHART_EXPORT QChartSeries : public QObject
 {
-
+    //TODO:
+    //Q_OBJECT
 public:
     enum QChartSeriesType {
         SeriesTypeLine = 0,
@@ -26,7 +27,8 @@ public:
     virtual ~QChartSeries(){};
 
     // Factory method
-    static QChartSeries* create(QObject* parent = 0 ){ return 0;}
+    static QChartSeries* create(QChartSeriesType type, QObject* parent = 0 );
+
     // Pure virtual
     virtual QChartSeriesType type() const = 0;
 
diff --git a/src/src.pro b/src/src.pro
index 3fc88db..56f75ae 100644
--- a/src/src.pro
+++ b/src/src.pro
@@ -25,7 +25,8 @@ SOURCES += \
     axis.cpp \
     qchartwidget.cpp \
     pieslice.cpp \
-    qchartview.cpp
+    qchartview.cpp \
+    qchartseries.cpp
 
 PRIVATE_HEADERS += \ 
     xylinechart/xylinechartitem_p.h \
diff --git a/src/xylinechart/qxychartseries.h b/src/xylinechart/qxychartseries.h
index 0efd29c..2c61ba1 100644
--- a/src/xylinechart/qxychartseries.h
+++ b/src/xylinechart/qxychartseries.h
@@ -10,6 +10,8 @@ QTCOMMERCIALCHART_BEGIN_NAMESPACE
 
 class QTCOMMERCIALCHART_EXPORT QXYChartSeries : public QChartSeries
 {
+    //TODO:
+//    Q_OBJECT
 private:
     QXYChartSeries(QObject* parent=0);
 public:
diff --git a/test/chartwidgettest/mainwidget.cpp b/test/chartwidgettest/mainwidget.cpp
index 2b1e48e..f73ff63 100644
--- a/test/chartwidgettest/mainwidget.cpp
+++ b/test/chartwidgettest/mainwidget.cpp
@@ -3,6 +3,7 @@
 #include "qchartseries.h"
 #include "qpieseries.h"
 #include <qxychartseries.h>
+#include <barchartseries.h>
 #include <QPushButton>
 #include <QComboBox>
 #include <QSpinBox>
@@ -165,6 +166,22 @@ void MainWidget::addSeries(QString series, QString data)
         // TODO
     }
 
+    // BarChart
+    if (series == "Bar") {
+        qDebug() << "Bar chart series";
+        QChartSeries* barSeries = QChartSeries::create(QChartSeries::SeriesTypeBar, this);
+        QList<int> barData;
+        barData << 1;
+        barData << 12;
+        barData << 5;
+        barData << 8;
+        barData << 17;
+        barData << 9;
+        barSeries->setData(barData);
+        m_chartWidget->addSeries(barSeries);
+
+    }
+
     setCurrentSeries(newSeries);
 }