different TreeNode call the same function

MIP
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1

I created a project by reference to sample Chat, but if I click rootnode first,then the content for Video will not be displayed:

root first root
root first root720×449 64.1 KB

root first video
root first video720×466 68.1 KB

and if I click Video first, whether I click Video or rootnode later, only the Video content displayed:

Video first video
Video first video720×450 82.9 KB

video first roonode
video first roonode720×448 82.1 KB

Can you give me any suggestion? I just want to display the correct content with the rootnode/Video, and click sequence independent

2

Please tell us what methods return the two controls in your plugin?

3

We use Chat project in your MIP SDK demo. We change the PlatformToolsId value and ToolNodeName value to add this two new node.

4

Does the unmodified Chat sample work as expected?

5

Chat sample is ok. I find my problem. I use error GUID when I create the ItemNode object.