private void TriggerTree_Load(object sender, EventArgs e)
{
TreeView1.Nodes.Clear();
TreeView1.Nodes.Add("Tree Root");
TreeView1.BeginUpdate();
AddNode(TreeView1.TopNode, 0);
TreeView1.EndUpdate();
}
private void BuildTree()
{
TreeView1.BeginUpdate();
Label6.Text = "Sounds: " + SoundCount.ToString() + " Interleave: " + Interleave.ToString();
TreeView1.Nodes.Clear();
for (int i = 0; i <= SoundCount - 1; i++)
{
string name = "ID: " + i.ToString() + " ";
TreeView1.Nodes.Add(name + Sounds[i].Name);
}
TreeView1.EndUpdate();
}
private async Task PopulateTreeViewAsync()
{
TreeNode treeNode1 = TreeView1.TopNode;
#region Before populating data.
var timer = new Stopwatch();
timer.Start();
searchProgress.Visible = true;
#endregion
try
{
#region Fetch JSON from API.
string fetchedComments = await client.GetStringAsync("https://jsonplaceholder.typicode.com/comments");
string fetchedPosts = await client.GetStringAsync("https://jsonplaceholder.typicode.com/posts");
string fetchedUsers = await client.GetStringAsync("https://jsonplaceholder.typicode.com/users");
string fetchedToDos = await client.GetStringAsync("https://jsonplaceholder.typicode.com/todos");
#endregion
#region Deserialize JSON into JArray.
JArray commentArray = JsonConvert.DeserializeObject <dynamic>(fetchedComments);
JArray postArray = JsonConvert.DeserializeObject <dynamic>(fetchedPosts);
JArray userArray = JsonConvert.DeserializeObject <dynamic>(fetchedUsers);
JArray toDoArray = JsonConvert.DeserializeObject <dynamic>(fetchedToDos);
#endregion
#region Convert JArrays into List<T>.
foreach (var post in postArray)
{
Post newPost = new Post();
JsonConvert.PopulateObject(post.ToString(), newPost);
posts.Add(newPost);
}
foreach (var comment in commentArray)
{
Comment newComment = new Comment();
JsonConvert.PopulateObject(comment.ToString(), newComment);
comments.Add(newComment);
}
foreach (var todo in toDoArray)
{
ToDo newToDo = new ToDo();
JsonConvert.PopulateObject(todo.ToString(), newToDo);
todos.Add(newToDo);
}
foreach (var user in userArray)
{
User newUser = new User();
JsonConvert.PopulateObject(user.ToString(), newUser);
foreach (var todo in todos)
{
if (todo.UserId == newUser.ID)
{
newUser.ToDos.Add(todo);
}
}
foreach (var post in posts)
{
if (post.UserID == newUser.ID)
{
newUser.Posts.Add(post);
}
}
foreach (var comment in comments)
{
if (comment.PostID == newUser.ID)
{
newUser.Comments.Add(comment);
}
}
users.Add(newUser);
}
#endregion
TreeView1.BeginUpdate();
foreach (var user in users)
{
treeNode1.Nodes.Add(user.Name);
treeNode1.Nodes[users.IndexOf(user)].Nodes.Add("Username");
treeNode1.Nodes[users.IndexOf(user)].Nodes[0].Nodes.Add(user.UserName);
treeNode1.Nodes[users.IndexOf(user)].Nodes.Add("Address");
treeNode1.Nodes[users.IndexOf(user)].Nodes[1].Nodes.Add($"Street: {user.Address.Street}");
treeNode1.Nodes[users.IndexOf(user)].Nodes[1].Nodes.Add($"City: {user.Address.City}");
treeNode1.Nodes[users.IndexOf(user)].Nodes[1].Nodes.Add($"ZipCode: {user.Address.ZipCode}");
treeNode1.Nodes[users.IndexOf(user)].Nodes.Add("Comments");
foreach (var comment in user.Comments)
{
treeNode1.Nodes[users.IndexOf(user)].Nodes[2].Nodes.Add($"Comment from {comment.Email} --- {comment.Body}");
}
treeNode1.Nodes[users.IndexOf(user)].Nodes.Add("Posts");
foreach (var post in user.Posts)
{
treeNode1.Nodes[users.IndexOf(user)].Nodes[3].Nodes.Add($"{post.Title} --- {post.Body}");
}
}
TreeView1.EndUpdate();
}
#region Exception Handling
catch (HttpRequestException ex)
{
Console.WriteLine($"Exception Caught!\n{ex.Message}");
}
catch (Exception ex)
{
Console.WriteLine($"Exception Caught!\n{ex.Message}");
}
#endregion
#region After populating data.
searchProgress.Visible = false;
#endregion
}
/// <summary>
/// Passes through the BeginUpdate method to the TreeView.
/// </summary>
public void BeginUpdate()
{
TreeView1.BeginUpdate();
}
