/// <summary>
/// Recursively adds a collection of directories to the treeview.
/// </summary>
/// <param name="directoryLookup">A cache of all the PhotoDirectory objects.</param>
/// <param name="dirBrowser">A reference to a DirectoryBrowser object.</param>
/// <param name="dirs">A collection of PhotoDirectory objects.</param>
/// <param name="parentNode">A reference to the parent tree node object, or null if at the root of the tree view.</param>
private void addDirectoryNodes(Hashtable directoryLookup, DirectoryBrowser dirBrowser,
PhotoDirectories dirs, squishyWARE.WebComponents.squishyTREE.TreeNode parentNode)
{
IEnumerator enumerator = dirs.GetEnumerator();
while (enumerator.MoveNext())
{
PhotoDirectory dir = (PhotoDirectory)enumerator.Current;
squishyWARE.WebComponents.squishyTREE.TreeNode node;
if (parentNode == null)
{
node = tvwMain.AddNode(HttpUtility.HtmlEncode(dir.Name), dir.Id.ToString());
}
else
{
node = parentNode.AddNode(HttpUtility.HtmlEncode(dir.Name), dir.Id.ToString());
}
addDirectoryNodes(directoryLookup, dirBrowser, dir.GetDirectories(), node);
if (!directoryLookup.Contains(dir.Id))
{
directoryLookup.Add(dir.Id, dir);
}
}
}
private void addChildNode(XmlNode node, string textAttribute, string keyAttribute, TreeNode tNode, string checkAttribute, string checkDefaultsAttribute)
{
string text;
string key = "";
bool checkbox = false;
bool isChecked = false;
text = node.Attributes[textAttribute].Value;
if (node.Attributes[keyAttribute] != null)
{
key = node.Attributes[keyAttribute].Value;
}
if (node.Attributes[checkAttribute] != null)
{
checkbox = Convert.ToBoolean(node.Attributes[checkAttribute].Value);
}
if (node.Attributes[checkDefaultsAttribute] != null)
{
isChecked = Convert.ToBoolean(node.Attributes[checkDefaultsAttribute].Value);
}
TreeNode n;
if (tNode == null)
{ //add to the TreeView
n = this.AddNode(text, key, checkbox);
}
else
{ //add to the TreeNode
n = tNode.AddNode(text, key, checkbox);
}
//get the tagged values
XmlNodeList taggedValues = node.SelectNodes("taggedValue");
int tagCount = 0;
foreach (XmlNode tg in taggedValues)
{
tagCount++;
string tagName = tg.Attributes["tagName"].Value;
string tagValue = tg.Attributes["tagValue"].Value;
n.AddTaggedValue(tagName, tagValue);
}
if (node.ChildNodes.Count - tagCount > 0)
{
//add the child nodes of this node
foreach (XmlNode child in node.ChildNodes)
{
if (child.Name != "taggedValue")
{
this.addChildNode(child, textAttribute, keyAttribute, n, checkAttribute, checkDefaultsAttribute);
}
}
}
if (checkDefaultsAttribute != "" && node.Attributes[checkDefaultsAttribute] != null &&
node.Attributes[checkDefaultsAttribute].Value.Trim() != "")
{
if (!this.Page.IsPostBack)
{
n.Check(isChecked);
}
}
}
private void AddChildNode(DataRow row, string textColumn, string keyColumn, string checkColumn,
string checkDefaultsColumn, TreeNode node)
{
string text;
string key;
bool checkbox = false;
bool isChecked = false;
text = row[textColumn].ToString();
key = row[keyColumn].ToString();
if (checkColumn != "")
{
if (row[checkColumn] != DBNull.Value)
{
checkbox = Convert.ToBoolean(row[checkColumn]);
}
if (row[checkDefaultsColumn] != DBNull.Value)
{
isChecked = Convert.ToBoolean(row[checkDefaultsColumn]);
}
}
TreeNode n;
if (node == null)
{ //add to the treeview
n = this.AddNode(text, key, checkbox);
}
else
{ //add to the node
n = node.AddNode(text, key, checkbox);
}
//now add the tagged values
if (this.headers.Count != 0)
{
foreach (object[] o in this.headers)
{
//only add the tagged value if this row contains the column in question
if (row.Table.Columns.Contains(o[0].ToString()))
{
//o[0] is the column name
n.AddTaggedValue(o[0].ToString(), row[o[0].ToString()].ToString());
}
}
}
//now look for child rows
if (row.Table.ChildRelations.Count > 0)
{
foreach (DataRelation r in row.Table.ChildRelations)
{
DataRow[] childRows = row.GetChildRows(r);
foreach (DataRow childRow in childRows)
{
this.AddChildNode(childRow, textColumn, keyColumn, checkColumn, checkDefaultsColumn,
n);
}
}
}
if (checkbox)
{
if (!this.Page.IsPostBack)
{
n.Check(isChecked);
}
}
}