private void recurse_and_set_values(Search_Result_Item_TreeNode parent_node, string parent_value)
{
foreach (Search_Result_Item_TreeNode childNode in parent_node.ChildNodes)
{
childNode.Value = parent_value + "_" + childNode.Name;
nodeHash[childNode.Value] = childNode;
recurse_and_set_values(childNode, childNode.Value);
}
}
/// <summary> Event handler loads the nodes on request to the serial hierarchy trees when the user requests them
/// by expanding a node </summary>
/// <param name="Sender"> TreeView object that fired this event </param>
/// <param name="E"> Event arguments includes the tree node which was expanded </param>
void treeView1_TreeNodePopulate(object Sender, TreeNodeEventArgs E)
{
// Determine the index of this result within the entire page of results
string resultsIndex = E.Node.Value;
string node_value = E.Node.Value;
if (E.Node.Value.IndexOf("_") > 0)
{
resultsIndex = E.Node.Value.Substring(0, E.Node.Value.IndexOf("_"));
node_value = node_value.Substring(resultsIndex.Length + 1);
}
// Get the appropriate title result
iSearch_Title_Result titleResult = PagedResults[Convert.ToInt32(resultsIndex)];
// Is this tree built?
if (titleResult.Item_Tree == null)
{
titleResult.Build_Item_Tree(resultsIndex);
}
Search_Result_Item_TreeNode retrieved_node = titleResult.Item_Tree.Get_Node_By_Value(node_value);
if (retrieved_node == null)
{
return;
}
string base_url = RequestSpecificValues.Current_Mode.Base_URL;
if (RequestSpecificValues.Current_Mode.Writer_Type == Writer_Type_Enum.HTML_LoggedIn)
{
base_url = RequestSpecificValues.Current_Mode.Base_URL + "l/";
}
foreach (Search_Result_Item_TreeNode childNode in retrieved_node.ChildNodes)
{
TreeNode childViewNode = new TreeNode
{
Value = resultsIndex + "_" + childNode.Value,
SelectAction = TreeNodeSelectAction.None
};
string name = UI_ApplicationCache_Gateway.Translation.Get_Translation(childNode.Name, RequestSpecificValues.Current_Mode.Language);
string tooltip = String.Empty;
if (name.Length > 100)
{
tooltip = name;
name = name.Substring(0, 100) + "...";
}
if (childNode.Link.Length > 0)
{
childViewNode.ToolTip = tooltip;
childViewNode.Text = "<a href=\"" + base_url + childNode.Link + textRedirectStem + "\">" + name + "</a>";
}
else
{
childViewNode.ToolTip = tooltip;
childViewNode.Text = name;
}
if (childNode.ChildNodes.Count > 0)
{
childViewNode.PopulateOnDemand = true;
}
E.Node.ChildNodes.Add(childViewNode);
}
}
/// <summary> Add new root node to this tree </summary>
/// <param name="Name"> Display name for this new root node (title of the item group at the root node level) </param>
/// <param name="Link"> Link for this new root node of the tree, or empty if no link </param>
/// <param name="Value"> Value of this new root node (actually the BibID + '_' + VID) </param>
/// <returns> Built sorted tree node object </returns>
public Search_Result_Item_TreeNode Add_Root_Node(string Name, string Link, string Value)
{
Search_Result_Item_TreeNode newRootNode = new Search_Result_Item_TreeNode(Name, Link, Value);
rootNodes.Add(newRootNode);
return newRootNode;
}
/// <summary> Builds the tree of items under this title, for multiple item titles </summary>
public void Build_Item_Tree(string ResultsIndex)
{
// Create the tree
itemTree = new Search_Result_Item_Tree();
// Add a root node
Search_Result_Item_TreeNode myRootNode = itemTree.Add_Root_Node("ROOT", String.Empty, bibid);
// Is this a newspaper type (handles display slightly differently)
bool newspaper = false;
if (materialtype.ToUpper().IndexOf("NEWSPAPER") >= 0)
{
newspaper = true;
}
// Placeholders for the day that we begin having four levels of serial hierarchy
string thischildLevel4Text = String.Empty;
const int thischildLevel4Index = -1;
// Add each seperate child row to the Items_Within_Title set
Dictionary <string, Search_Result_Item_TreeNode> level1Nodes = new Dictionary <string, Search_Result_Item_TreeNode>();
Dictionary <string, Search_Result_Item_TreeNode> level2Nodes = new Dictionary <string, Search_Result_Item_TreeNode>();
Dictionary <string, Search_Result_Item_TreeNode> level3Nodes = new Dictionary <string, Search_Result_Item_TreeNode>();
foreach (iSearch_Item_Result thisChild in itemList)
{
// Determine the final link for this item
string itemLink = bibid + "/" + thisChild.VID;
string level1Text = thisChild.Level1_Text;
string level2Text = thisChild.Level2_Text;
string level3Text = thisChild.Level3_Text;
string level4Text = thischildLevel4Text;
// The logic to add all the nodes for this item. This is large in an attempt to make it
// frighteningly quick
if (level4Text.Length > 0)
{
if (level3Nodes.ContainsKey(level1Text + "_" + level2Text + "_" + level3Text))
{
level3Nodes[level1Text + "_" + level2Text + "_" + level3Text].Add_Child_Node(level4Text, itemLink, thischildLevel4Index);
}
else
{
if (level2Nodes.ContainsKey(level1Text + "_" + level2Text))
{
level3Nodes[level1Text + "_" + level2Text + "_" + level3Text] = level2Nodes[level1Text + "_" + level2Text].Add_Child_Node(level3Text, String.Empty, thisChild.Level3_Index);
}
else
{
if (level1Nodes.ContainsKey(level1Text))
{
level2Nodes[level1Text + "_" + level2Text] = level1Nodes[level1Text].Add_Child_Node(level2Text, String.Empty, thisChild.Level2_Index);
}
else
{
level1Nodes[level1Text] = myRootNode.Add_Child_Node(level1Text, String.Empty, 0);
level2Nodes[level1Text + "_" + level2Text] = level1Nodes[level1Text].Add_Child_Node(level2Text, String.Empty, thisChild.Level2_Index);
}
level3Nodes[level1Text + "_" + level2Text + "_" + level3Text] = level2Nodes[level1Text + "_" + level2Text].Add_Child_Node(level3Text, String.Empty, thisChild.Level3_Index);
}
level3Nodes[level1Text + "_" + level2Text + "_" + level3Text].Add_Child_Node(level4Text, itemLink, thischildLevel4Index);
}
}
else
{
if (level3Text.Length > 0)
{
if ((newspaper) && (level3Text.IndexOf(level2Text) < 0) && (level3Text.IndexOf(level1Text) < 0))
{
string date = level2Text + " " + level3Text + ", " + level1Text;
if (level2Nodes.ContainsKey(level1Text + "_" + level2Text))
{
level3Nodes[level1Text + "_" + level2Text + "_" + level3Text] = level2Nodes[level1Text + "_" + level2Text].Add_Child_Node(date, itemLink, thisChild.Level3_Index);
}
else
{
if (level1Nodes.ContainsKey(level1Text))
{
level2Nodes[level1Text + "_" + level2Text] = level1Nodes[level1Text].Add_Child_Node(level2Text, String.Empty, thisChild.Level2_Index);
}
else
{
level1Nodes[level1Text] = myRootNode.Add_Child_Node(level1Text, String.Empty, thisChild.Level1_Index);
level2Nodes[level1Text + "_" + level2Text] = level1Nodes[level1Text].Add_Child_Node(level2Text, String.Empty, thisChild.Level2_Index);
}
level3Nodes[level1Text + "_" + level2Text + "_" + level3Text] = level2Nodes[level1Text + "_" + level2Text].Add_Child_Node(date, itemLink, thisChild.Level3_Index);
}
}
else
{
if (level2Nodes.ContainsKey(level1Text + "_" + level2Text))
{
level3Nodes[level1Text + "_" + level2Text + "_" + level3Text] = level2Nodes[level1Text + "_" + level2Text].Add_Child_Node(level3Text, itemLink, thisChild.Level3_Index);
}
else
{
if (level1Nodes.ContainsKey(level1Text))
{
level2Nodes[level1Text + "_" + level2Text] = level1Nodes[level1Text].Add_Child_Node(level2Text, String.Empty, thisChild.Level2_Index);
}
else
{
level1Nodes[level1Text] = myRootNode.Add_Child_Node(level1Text, String.Empty, thisChild.Level1_Index);
level2Nodes[level1Text + "_" + level2Text] = level1Nodes[level1Text].Add_Child_Node(level2Text, String.Empty, thisChild.Level2_Index);
}
level3Nodes[level1Text + "_" + level2Text + "_" + level3Text] = level2Nodes[level1Text + "_" + level2Text].Add_Child_Node(level3Text, itemLink, thisChild.Level3_Index);
}
}
}
else
{
if (level2Text.Length > 0)
{
if (level1Nodes.ContainsKey(level1Text))
{
level2Nodes[level1Text + "_" + level2Text] = level1Nodes[level1Text].Add_Child_Node(level2Text, itemLink, thisChild.Level2_Index);
}
else
{
level1Nodes[level1Text] = myRootNode.Add_Child_Node(level1Text, String.Empty, thisChild.Level1_Index);
level2Nodes[level1Text + "_" + level2Text] = level1Nodes[level1Text].Add_Child_Node(level2Text, itemLink, thisChild.Level2_Index);
}
}
else
{
if (level1Text.Length > 0)
{
level1Nodes[level1Text] = myRootNode.Add_Child_Node(level1Text, itemLink, thisChild.Level1_Index);
}
else
{
level1Nodes[thisChild.Title] = myRootNode.Add_Child_Node(thisChild.Title, itemLink, 0);
}
}
}
}
}
// Set the hash values, for lookup by id
itemTree.Set_Values();
}
