/// <summary>
/// Calculates the hierarchical order of divisions.
/// </summary>
/// <param name="divisions">Divisions that must be properly sorted before the call.</param>
protected static void CalculateOrder(IList <DivisionObrnadzorViewModel> divisions)
{
// TODO: Get hierarchical data from DB without recalculating it?
const string separator = ".";
var orderCounter = 1;
var orderStack = new List <int> ();
var returnStack = new Stack <DivisionObrnadzorViewModel> ();
DivisionObrnadzorViewModel prevDivision = null;
foreach (var division in divisions)
{
if (prevDivision != null)
{
if (division.ParentDivisionID == prevDivision.ParentDivisionID)
{
// moving on same level
orderCounter++;
}
else if (division.ParentDivisionID == prevDivision.DivisionID)
{
// moving down
orderStack.Add(orderCounter);
returnStack.Push(prevDivision);
orderCounter = 1;
}
else
{
// moving up
while (returnStack.Count > 0 && orderStack.Count > 0)
{
orderCounter = orderStack [orderStack.Count - 1];
orderStack.RemoveAt(orderStack.Count - 1);
if (division.ParentDivisionID == returnStack.Pop().ParentDivisionID)
{
break;
}
}
orderCounter++;
}
}
// format order value
if (orderStack.Count == 0)
{
division.Order = orderCounter + separator;
division.Level = 0;
}
else
{
division.Order = TextUtils.FormatList(separator, orderStack) + separator + orderCounter + separator;
}
prevDivision = division;
}
}
/// <summary>
/// Handles Load event for a control
/// </summary>
/// <param name="e">Event args.</param>
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
try {
if (Settings.Mode == DivisionDirectoryMode.Search)
{
if (!IsPostBack)
{
if (!string.IsNullOrWhiteSpace(SearchText) || !Null.IsNull(SearchDivision))
{
// restore current search
textSearch.Text = SearchText;
if (Null.IsNull(SearchDivision))
{
// select first node
if (treeDivisions.Nodes.Count > 0)
{
treeDivisions.Nodes [0].Selected = true;
}
}
else
{
treeDivisions.SelectAndExpandByValue(SearchDivision.ToString());
}
// perform search
if (SearchParamsOK(SearchText, SearchDivision, false))
{
DoSearch(SearchText, SearchDivision);
}
}
}
}
else if (Settings.Mode == DivisionDirectoryMode.ObrnadzorDivisions)
{
var divisions = GetDivisions();
if (!divisions.IsNullOrEmpty())
{
gridObrnadzorDivisions.DataSource = DivisionObrnadzorViewModel.Create(divisions, ViewModelContext);
gridObrnadzorDivisions.DataBind();
}
}
else if (Settings.Mode == DivisionDirectoryMode.ObrnadzorGoverningDivisions)
{
var divisions = GetDivisions();
if (!divisions.IsNullOrEmpty())
{
gridObrnadzorGoverningDivisions.DataSource = DivisionObrnadzorViewModel.Create(divisions, ViewModelContext);
gridObrnadzorGoverningDivisions.DataBind();
}
}
}
catch (Exception ex) {
Exceptions.ProcessModuleLoadException(this, ex);
}
}
