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I need a lightning fast DataGrid, what UI framework should I use?
posted

I want to build a specialized tool for reading fixed length text files.
I also need to show the data and search it.
At the moment I go with excel, power query or VBA.
The DataGrid needed (or whatever component may be useful for the purpose) should be really fast, Excel fast.

As an example the data could be 100k rows by 45 columns.
I'm able to import that in Excel in under 2 seconds and filter/search without any issue.

I've experience with WinForms DataGridView and after some tweaks it can manage this kind of data.
I've tested the Windows Community Toolkit example app. but the DataGrid is quite slow even at sorting the default ~100 rows.

Am I stuck with WinForms?