private void populateTreeView(List<DoctorServiceRef.Doctor> doctors)
{
sortedDoctors = doctors.OrderBy(doc => doc.specialty).ToList();
var topNode = new TreeNode("Services");
TreeView1.Nodes.Add(topNode);
string currentSpecialty = sortedDoctors.First().specialty;
var treeNodes = new List<TreeNode>();
var childNodes = new List<TreeNode>();
foreach (DoctorServiceRef.Doctor doc in sortedDoctors)
{
if (currentSpecialty == doc.specialty)
childNodes.Add(new TreeNode(doc.firstName + " " + doc.lastName));
else
{
if (childNodes.Count > 0)
{
TreeNode newNode = new TreeNode(currentSpecialty);
foreach (TreeNode node in childNodes)
{
newNode.ChildNodes.Add(node);
}
treeNodes.Add(newNode);
childNodes = new List<TreeNode>();
}
childNodes.Add(new TreeNode(doc.firstName + " " + doc.lastName));
currentSpecialty = doc.specialty;
}
}
if (childNodes.Count > 0)
{
TreeNode newNode = new TreeNode(currentSpecialty);
foreach (TreeNode node in childNodes)
{
newNode.ChildNodes.Add(node);
}
treeNodes.Add(newNode);
}
foreach (TreeNode node in treeNodes)
{
TreeView1.Nodes.Add(node);
}
TreeView1.CollapseAll();
TreeView1.DataBind();
}
