Selecting all nodes is calling BuildTemplateColumn too many times causing slowdowns

AvaloniaUI / Avalonia.Controls.TreeDataGrid

A combined TreeView/DataGrid for Avalonia.

MIT License

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Selecting all nodes is calling BuildTemplateColumn too many times causing slowdowns #223

Open danipen opened 9 months ago

danipen commented 9 months ago

When I select all nodes in the TreeDataGrid with around 33,000 nodes, it slows down. Profiling shows that the selection triggers BuildTemplateColumn, which causes a heavy load on the UI.