Accord.Controls.HistogramView.onDataBind C# (CSharp) Method

        private void onDataBind()
        {
            samples = null;

            if (dataSource == null)
                return;

            Histogram source = dataSource as Histogram;

            if (source == null)
            {
                if (histogram == null)
                    histogram = new Histogram();

                if (dataSource is DataSet)
                {
                    // throw new NotSupportedException();
                }
                else if (dataSource is DataTable)
                {
                    DataTable table = dataSource as DataTable;

                    if (dataMember != null && dataMember.Length > 0)
                    {
                        if (table.Columns.Contains(dataMember))
                        {
                            DataColumn column = table.Columns[dataMember];
                            samples = Matrix.ToArray(column);
                        }
                        else
                        {
                            samples = new double[0];
                        }
                    }
                    else
                    {
                        return;
                    }
                }
                else if (dataSource is double[])
                {
                    samples = dataSource as double[];
                }
                else if (dataSource is IListSource)
                {
                    // throw new NotSupportedException();
                }
                else
                {
                    return; // invalid data source
                }

                if (binWidth != null)
                    this.histogram.Compute(samples, binWidth.Value);
                else if (numberOfBins != null)
                    this.histogram.Compute(samples, numberOfBins.Value);
                else
                    this.histogram.Compute(samples);
            }
            else
            {
                this.histogram = source;
            }

            this.UpdateTrackbar();
            this.UpdateGraph();

            if (histogram.Bins.Count > 0 &&
                histogram.Bins.Count < trackBar.Maximum)
                trackBar.Value = histogram.Bins.Count;
        }