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The code sample and screen log in the attched file.

This is a about 4 level tree.

Almost the same code.

The different is if using the[WebAssembly]. the same code takes almost 5s to show the data.

I have take many test about it.

If I using id,parentid,desczh, 3 fileds(a new class to build the sample) to show the tree, it can show quickly.

I have the see the same question in the forum.

There is no satisfactory answer.

https://www.syncfusion.com/forums/154398/performance-treegrid


I have update the code.

Nothing about the levels.

It may show very slow in blazor frame work.

The below code show if using 4 lelels.

I have add a page [tree grid 2]

It can control the counts of the items to generate.

code.png

autogen_tree2.png