RadControls for Silverlight

Feature comparison of Telerik RadGridView and Microsoft DataGrid 
FeatureTelerik RadGridView for SilverlightMicrosoft DataGrid
Bind to Arrays collectionOKOK
Bind to Lists collectionOKOK
Bind to Observable collectionOKOK
Property PathsOKOK
Row detailsOKOK
Master details formOKOK
Property HierarchyOK---
Custom HierarchyOK---
Self referance HierarchyOK---
Card view------
Grouping in hierarchyOK---
GroupingOKOK
Basic filtering (by one value)OKOK
Excel-like filteringOKOK
Extensible filtering UIOK---
Custom filtering with two conditionsOK---
Defered scrolling with previewOKOK*
Scrolling on mouse wheelOK---
Asynchronous data bindingOK---
Column starable column widths (* column width)OK---
Field/Column chooserOK**---
Persistence frameworkOK**---
Server page sortingOKOK
Sort NoneOKOK***
Server page filteringOKOK
Filter rowOK** ---
Unbound columns supportOK OK
Sort by columnsOKOK
Sort by several columnsOKOK
Sort Ascending/DescendingOK OK
Printing capabilitiesOK** ---
Print preview------
Export to ExcelOK ---
Export to WordOK ---
Export to CSVOK ---
Grid footer rowOKOK
Grid summary row with aggregatesOK---
Group summary row with aggregatesOK ---
Group Footer rowOK---
Group row aggregatesOK ---
Vertical virtualizationOK OK
Horizontal virtualizationOK ---
Real-time scrollingOKOK
Physical scrollingOKOK
PagingOKOK
Column width mode - AutoOKOK
Frozen (Fixed) columnsOKOK
Immediate Resizeing column widthsOKOK
UI automaion/QTP supportOKOK
Number of themes611
In-place editing and validationOKOK
Built-in data validationOK---
Data Validation events for custom validationOKOK
Multiple row selectionOKOK
Keyboard navigation with "Tab"/"Shift+Tab"OKOK
Keyboard navigation with ArrowsOKOK
Built-in checkbox columnOKOK
Built-in textbox columnOKOK
Built-in Boolean columnOKOK
Built-in Date columnOKOK
Built-in hyperlink columnOKOK
Built-in Image columnOK---
Built-in MaskedTextBox columnOK---
Data FormattingOK---
Context menuOK** ---
Select multiple cellsOK ---
Multiple column selection------

* MS Grid does not have preview

** We have it as example

*** MS Grid can do it with code