newtonsoft json to treeview
private void Form1_Load(object sender, EventArgs e)
{
using (var reader = new StreamReader(path))
using (var jsonReader = new JsonTextReader(reader))
{
var root = JToken.Load(jsonReader);
DisplayTreeView(root, Path.GetFileNameWithoutExtension(path));
}
}
private void DisplayTreeView(JToken root, string rootName)
{
treeView1.BeginUpdate();
try
{
treeView1.Nodes.Clear();
var tNode = treeView1.Nodes[treeView1.Nodes.Add(new TreeNode(rootName))];
tNode.Tag = root;
AddNode(root, tNode);
treeView1.ExpandAll();
}
finally
{
treeView1.EndUpdate();
}
}
private void AddNode(JToken token, TreeNode inTreeNode)
{
if (token == null)
return;
if (token is JValue)
{
var childNode = inTreeNode.Nodes[inTreeNode.Nodes.Add(new TreeNode(token.ToString()))];
childNode.Tag = token;
}
else if (token is JObject)
{
var obj = (JObject)token;
foreach (var property in obj.Properties())
{
var childNode = inTreeNode.Nodes[inTreeNode.Nodes.Add(new TreeNode(property.Name))];
childNode.Tag = property;
AddNode(property.Value, childNode);
}
}
else if (token is JArray)
{
var array = (JArray)token;
for (int i = 0; i < array.Count; i++)
{
var childNode = inTreeNode.Nodes[inTreeNode.Nodes.Add(new TreeNode(i.ToString()))];
childNode.Tag = array[i];
AddNode(array[i], childNode);
}
}
else
{
Debug.WriteLine(string.Format("{0} not implemented", token.Type)); // JConstructor, JRaw
}
}