I use a TreeView in my app and whenever I click on one of the triangles to open another tree layer, I get the attached warning in the console. This also happens when I use a Tree in a dropdown. Is there anything I can do about this? Here is the data that I use with it:
[
{
"id": 1,
"text": "Hessen",
"items": [
{ "id": 2, "text": "Mannheim" },
{ "id": 3, "text": "Frankfurt" }
]
},
{
"id": 4,
"text": "Rheinland-Pfalz",
"items": [
{
"id": 5,
"text": "Mainz",
"items": [
{ "id": 50, "text": "Gebäude A" },
{ "id": 51, "text": "Gebäude B" },
{ "id": 52, "text": "Gebäude C" }
]
},
{ "id": 6, "text": "Kaiserslautern" },
{ "id": 7, "text": "Zweibrücken" }
]
},
{
"id": 8,
"text": "Bayern",
"items": [
{ "id": 9, "text": "München" },
{ "id": 10, "text": "Rosenheim" }
]
},
{
"id": 11,
"text": "Saarland",
"items": [
{ "Id": 12, "text": "Saarbrücken" },
{ "id": 13, "text": "Neunkirchen" }
]
}
]