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After seeing that virtual scrolling was implemented in 2011 Q2 we all here got really exited - to us it is one of the best ways of intuitively navigating a large dataset. However, when viewing the implementation it unfortunately does not at all seem as usable as we hoped...
Looking at the new functionality at http://demos.telerik.com/aspnet-mvc/razor/grid/pageonscroll?theme=vista it is implemented a lot like Twitter or Google Reader handles showing more records when reaching the end of the page. Since both those sources handle strictly sorted data, that seems very reasonable
The implementation we were hoping for is more along the lines of this:
http://www.trirand.net/aspnetmvc/grid/performancevirtualscrolling
Here the entire dataset is reachable by scrolling at all times - it is very easy to reach a specific record in a huge number of them since the virtual scrollbar makes it appear as all data is available at all times.
Looking the new implementation here it is obviously very hard to get to a record in the middle of the set (say #400), while in the other linked demo (trirand.net) it is at least reasonable to get to an exact record in the middle of the set (say #250000 in the set of around half a million records).
Is there any hope the other type of virtual scrolling will be implemented?
Thanks
/Victor
Looking at the new functionality at http://demos.telerik.com/aspnet-mvc/razor/grid/pageonscroll?theme=vista it is implemented a lot like Twitter or Google Reader handles showing more records when reaching the end of the page. Since both those sources handle strictly sorted data, that seems very reasonable
The implementation we were hoping for is more along the lines of this:
http://www.trirand.net/aspnetmvc/grid/performancevirtualscrolling
Here the entire dataset is reachable by scrolling at all times - it is very easy to reach a specific record in a huge number of them since the virtual scrollbar makes it appear as all data is available at all times.
Looking the new implementation here it is obviously very hard to get to a record in the middle of the set (say #400), while in the other linked demo (trirand.net) it is at least reasonable to get to an exact record in the middle of the set (say #250000 in the set of around half a million records).
Is there any hope the other type of virtual scrolling will be implemented?
Thanks
/Victor