how to bring the selected rows to top in gridview

Please follow the below steps

1. You have to rebind it on Grid Row on the binding event

2. Take the selected (e args) and map it with the collection  

3. Create a temp collection, and inserted the selected key item first, then add the result as a collection in a single shot with filtration of selection.  Once data are bound to the grid, please dispose of the temp collection, to avoid memory usage.

https://www.codeproject.com/Questions/486024/howplustoplusbringplustheplusselectedplusrowsplust