RadGridView and RadVirtualGrid are two different controls with their internal specific implementation. It wouldn't be easy to provide automatic conversion from RadGridView to RadVirtualGrid. It has to be done manually.
RadVirtualGrid is a control that allows you to display and edit tabular data from any kind of data source and large number of records.
In order to fill RadVirtualGrid with data, you should follow the steps below:
1. Handle the CellValueNeeded event. You should specify the Value argument in the VirtualGridCellValueNeededEventArgs.
2. You will also need to set the RowCount and ColumnCount properties so that the grid will know how many rows/columns it needs to display.
Additional information and a sample code snippet is available in the following help article: https://docs.telerik.com/devtools/winforms/controls/virtualgrid/working-with-data/virtualgrid-populating-with-data
RadVirtualGrid also support paging. It is necessary to enable the EnablePaging property.
I hope this information helps. If you need any further assistance please don't hesitate to contact me.
Dess | Tech Support Engineer, Sr.
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