/// <summary>
/// recrusively processes the xml file for breadcrumb nodes
/// </summary>
/// <param name="child">xml child node</param>
/// <param name="tree">collection of breadcrumbs</param>
private void ProcessChild(XmlNode child, TreeCollection <Breadcrumb>?tree)
{
if (child.NodeType != XmlNodeType.Element)
{
return;
}
var a = child.Attributes?.GetNamedItem("Action");
var c = child.Attributes?.GetNamedItem("Controller");
var f = child.Attributes?.GetNamedItem("Fragment");
var t = child.Attributes?.GetNamedItem("Text");
var type = child.Attributes?.GetNamedItem("Type")?.Value;
if (a == null || c == null || t == null)
{
throw new XmlException("BreadCrumb node must contain 'Controller', 'Action', and 'Text' attributes");
}
var node = new Breadcrumb();
if (type.IsNotBlank())
{
var actualType = Type.GetType(type);
node = (Breadcrumb)this.serviceProvider.GetService(actualType !) !;
}
node.Action = a.Value ?? string.Empty;
node.Controller = c.Value ?? string.Empty;
node.Text = t.Value ?? string.Empty;
node.Fragment = f?.Value ?? string.Empty;
tree = tree == null ? (this.root = new TreeCollection <Breadcrumb>(node)) : tree.AddChild(node);
child.ChildNodes.Cast <XmlNode>()
.ToList()
.ForEach(n => this.ProcessChild(n, tree));
}