Dev2.Data.DataListModel.PopulateWithData C# (CSharp) Method

        public void PopulateWithData(string data)
        {
            var toLoad = data;
            XmlDocument xDoc = new XmlDocument();
            try
            {
                xDoc.LoadXml(toLoad);
            }
            catch
            {
                // Append new root tags ;)
                toLoad = "<root>" + toLoad + "</root>";
                xDoc.LoadXml(toLoad);
            }

            if (!String.IsNullOrEmpty(toLoad))
            {
                if (xDoc.DocumentElement != null)
                {
                    XmlNodeList children = xDoc.DocumentElement.ChildNodes;

                    IDictionary<string, int> indexCache = new Dictionary<string, int>();

                    // spin through each element in the XML
                    foreach (XmlNode c in children)
                    {
                        var hasCorrectIoDirection = true;
                        if (c.Attributes != null)
                        {
                            var columnIoDirectionAttribute = c.Attributes["ColumnIODirection"];
                            if (columnIoDirectionAttribute != null)
                            {
                                var columnIoDirectionValue = columnIoDirectionAttribute.Value;
                                var hasCorrectIoDirectionFromAttribute = columnIoDirectionValue == enDev2ColumnArgumentDirection.Output.ToString() || columnIoDirectionValue == enDev2ColumnArgumentDirection.Both.ToString();
                                hasCorrectIoDirection = hasCorrectIoDirectionFromAttribute;
                            }
                        }

                        if (DataListUtil.IsSystemTag(c.Name) && !hasCorrectIoDirection)
                        {
                            continue;
                        }
                        var recSet = RecordSets.FirstOrDefault(set => set.Name == c.Name);
                        var shapeRecSet = ShapeRecordSets.FirstOrDefault(set => set.Name == c.Name);
                        var scalar = Scalars.FirstOrDefault(scalar1 => scalar1.Name == c.Name);
                        // scalars and recordset fetch
                        {
                            if (recSet!=null && shapeRecSet!=null)
                            {
                                // fetch recordset index
                                int fetchIdx;
                                int idx = indexCache.TryGetValue(c.Name, out fetchIdx) ? fetchIdx : 1; // recset index
                                // process recordset
                                var scalars = shapeRecSet.Columns[1];
                                var colToIoDirection = scalars.ToDictionary(scalar1 => scalar1.Name, scalar1 => scalar1.IODirection);
                                XmlNodeList nl = c.ChildNodes;
                                if (!recSet.Columns.ContainsKey(idx))
                                {
                                    recSet.Columns.Add(idx,new List<IScalar>());
                                }
                                else
                                {
                                    recSet.Columns[idx] = new List<IScalar>();
                                }
                                foreach (XmlNode subc in nl)
                                {
                                    if (colToIoDirection.ContainsKey(subc.Name))
                                    {
                                        var column = new Scalar { Name = subc.Name, Value = subc.InnerText, IODirection = colToIoDirection[subc.Name] };
                                        recSet.Columns[idx].Add(column);
                                    }
                                }
                                // update this recordset index
                                indexCache[c.Name] = ++idx;
                            }
                            else
                            {
                                if(scalar!=null)
                                {
                                    scalar.Value = c.InnerXml;
                                }
                            }
                        }
                    }
                }
            }
        }