DataGrid Select Row Too slow

[enchev]

@Woody

Displaying more than a few columns

Not sure how many columns are more than a few in your case however in this thread I've tested recently with 20:

Terrible performance from RadzenDataGrid

Not sure what's your machine however here is how your original code behaves in our demos on my fairly old (6 years) machine: [image] [datagrid-dynamic-columns] Of course it will since there is additional HTML rendered for each column (two DropDowns, DatePicker, etc per column) and this HTML will be rerendered on each change state of the component. We are not aware of any faster approach still we are open to any suggestions on how to improve the performance in such case.