private DataTable NavigatorBuildDataTable(object selTreeList)
{
ASPxTreeList tree = (ASPxTreeList)selTreeList;
DataTable dt = new DataTable();
string[] fieldValues = new string[5];
List <string> fieldValuesID = new List <string>();
List <string> fieldValuesDisplayText = new List <string>();
List <string> fieldValuesOrderNum = new List <string>();
List <string> fieldValuesParentID = new List <string>();
List <string> fieldValuesPageLink = new List <string>();
dt.Columns.Add("ID");
dt.Columns.Add("DisplayText");
dt.Columns.Add("OrderNum");
dt.Columns.Add("ParentID");
dt.Columns.Add("PageLink");
IEnumerable <TreeListNode> list = tree.GetAllNodes();
foreach (TreeListNode node in list)
{
fieldValues[0] = node.GetValue("ID").ToString();
fieldValues[1] = node.GetValue("DisplayText").ToString();
fieldValues[2] = node.GetValue("OrderNum").ToString();
fieldValues[3] = node.GetValue("ParentID").ToString();
fieldValues[4] = node.GetValue("PageLink").ToString();
dt.Rows.Add(fieldValues);
}
return(dt);
}
/// <summary>
/// This method fills the sort index column with appropriate values
/// You can avoid using it if you have a persistent column in your data source
/// </summary>
protected void tlData_DataBound(object sender, EventArgs e)
{
ASPxTreeList treeList = sender as ASPxTreeList;
bool defaultNodes = (Session[treeList.UniqueID + "_Sort"] == null);
ICollection <TreeListNode> allNodes = treeList.GetAllNodes();
if (defaultNodes)
{
Dictionary <string, int> nodeOrder = new Dictionary <string, int>();
foreach (TreeListNode node in allNodes)
{
string parentKey = (node.ParentNode == null) ? String.Empty : node.ParentNode.Key;
int order = 0;
if (nodeOrder.ContainsKey(parentKey))
{
order = ++nodeOrder[parentKey];
}
else
{
nodeOrder[parentKey] = order;
}
node.SetValue("SortIndex", order);
}
Dictionary <string, int> SortIndex = new Dictionary <string, int>();
foreach (TreeListNode node in allNodes)
{
SortIndex.Add(node.Key, (int)node.GetValue("SortIndex"));
}
Session[treeList.UniqueID + "_Sort"] = SortIndex;
}
else
{
Dictionary <string, int> SortIndex = Session[treeList.UniqueID + "_Sort"] as Dictionary <string, int>;
foreach (TreeListNode node in allNodes)
{
node.SetValue("SortIndex", SortIndex[node.Key]);
}
}
treeList.SortBy(treeList.Columns["SortIndex"] as TreeListDataColumn, ColumnSortOrder.Ascending);
}
protected void TreeList_CustomJSProperties(object sender, DevExpress.Web.ASPxTreeList.TreeListCustomJSPropertiesEventArgs e)
{
ASPxTreeList tree = (ASPxTreeList)sender;
e.Properties["cpSiblingKeys"] = tree.GetAllNodes().ToDictionary(n => n.Key, n => n.ParentNode.ChildNodes.OfType <TreeListNode>().Select(c => c.Key));
}
