private void RefreshExplorer(Transactions transactions)
{
txnTreeView.Nodes.Clear();
var rootTreeNode = CategoryNode.CreateTreeNode(null, new TreeNodeData()
{
Text = "All"
});
txnTreeView.Nodes.Add(rootTreeNode);
RefreshNode(rootTreeNode, transactions);
rootTreeNode.Expand();
if (txnTreeView.SelectedNode == null)
{
txnTreeView.SelectedNode = rootTreeNode.Nodes.Cast <TreeNode>().FirstOrDefault()
.IfNotNull(yearNode => yearNode.Nodes.Cast <TreeNode>().FirstOrDefault());
}
}
private static void RefreshNode(TreeNode treeNode, Transactions allTransactions, IEnumerable <Transaction> parentTransactions = null)
{
var isExpanded = treeNode.IsExpanded;
var treeNodeData = (TreeNodeData)treeNode.Tag;
if (treeNodeData.YearFilter == null)
{
var yearGroups = allTransactions.TopLevelTransactions.GroupBy(t => t.CorrectedTransactionDate.Year).OrderByDescending(g => g.Key);
foreach (var yearGroup in yearGroups)
{
var yearTreeNode = CategoryNode.CreateTreeNode(treeNode,
new TreeNodeData()
{
Text = yearGroup.Key.ToStringCurrentCulture(), YearFilter = yearGroup.Key
});
RefreshNode(yearTreeNode, allTransactions, yearGroup.Select(t => t));
yearTreeNode.Expand();
}
}
else if (treeNodeData.MonthFilter == null)
{
var year = treeNodeData.YearFilter.Value;
parentTransactions = parentTransactions ?? allTransactions.TopLevelTransactions.Where(t => t.CorrectedTransactionDate.Year == year);
var monthGroups = parentTransactions.GroupBy(t => t.CorrectedTransactionDate.Month).OrderByDescending(g => g.Key);
foreach (var monthGroup in monthGroups)
{
var monthTreeNode = CategoryNode.CreateTreeNode(treeNode, new TreeNodeData()
{
Text = GetMonthDisplayName(monthGroup.Key),
YearFilter = year,
MonthFilter = monthGroup.Key
});
RefreshNode(monthTreeNode, allTransactions, monthGroup.Select(t => t));
}
}
else
{
var year = treeNodeData.YearFilter.Value;
var month = treeNodeData.MonthFilter.Value;
parentTransactions = parentTransactions ?? allTransactions.TopLevelTransactions.Where(t => t.CorrectedTransactionDate.Year == year)
.Where(t => t.CorrectedTransactionDate.Month == month);
var categoryPathsAndSum = parentTransactions
.GroupBy(t => t.DisplayCategoryPathOrNameCocatenated)
.Select(tg => Tuple.Create(tg.First().DisplayCategoryPathOrName, tg.Sum(t => t.Amount), tg.Count()))
.OrderByDescending(tp => tp.Item2);
var rootCategoryNode = new CategoryNode(null);
foreach (var categoryPathAndSum in categoryPathsAndSum)
{
rootCategoryNode.Merge(categoryPathAndSum.Item1, categoryPathAndSum.Item2, categoryPathAndSum.Item3);
}
rootCategoryNode.BuildTreeViewNodes(treeNode, year, month);
}
if (isExpanded)
{
treeNode.Expand();
}
}
